BAA electronic bulletin
NLC Alert
As of 2019 17 June 22.55UT I have clear skies and NLC to the overhead
and beyond from the Moray Coast. This should be visible as far south
as central France and could go further.
Any reports please to - sandra-b@hotmail.co.uk & lt;mailto: sandra-b@hotmail.co.uk & gt;
Cheers
Sandra Brantingham
Aurora and NLC director
BAA-ebulletin mailing list visit:
http://lists.britastro.org/mailman/listinfo/baa-ebulletin
(c) 2018 British Astronomical Association http://www.britastro.org/
--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and
also a friend of Kessingland Beach (Watchman)
--
Profile: http://www.google.com/profiles/astrocomera
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and
Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland
Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
Tuesday, 18 June 2019
Sunday, 9 June 2019
Fwd: [CometObs] Digest Number 3591
1 Message
Digest #3591
Message
Sat Jun 8, 2019 1:59 am (PDT) . Posted by:
"jjgonzalez jjgonzalez" jjgsgp
C/2018 R3 (Lemmon):
2019 June 7.94 UT: m1=8.5, Dia.=10', DC=2, 25x100B.
[ In 20 cm SCT (77x): m1=9.3, Dia.=6', DC=2/.
In 25x100 B: from dark mountain skies the comet
shows a wide and diffuse outer coma. Altitude: 18°.
Sidgwick method. Tycho-2 comparison stars. SQM: 20.8.].
( Pandorado, Leon, Spain, 42º 47' N, 6º 00' W, alt. 1190 m;
SQM : 21.4 at zenit ).
J. J. Gonzalez Suarez
----------------------------------------------------------
2019 June 7.94 UT: m1=8.5, Dia.=10', DC=2, 25x100B.
[ In 20 cm SCT (77x): m1=9.3, Dia.=6', DC=2/.
In 25x100 B: from dark mountain skies the comet
shows a wide and diffuse outer coma. Altitude: 18°.
Sidgwick method. Tycho-2 comparison stars. SQM: 20.8.].
( Pandorado, Leon, Spain, 42º 47' N, 6º 00' W, alt. 1190 m;
SQM : 21.4 at zenit ).
J. J. Gonzalez Suarez
----------------------------------------------------------
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
--
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
Sunday, 2 June 2019
Fwd: [CometObs] Digest Number 3590
1 Message
Digest #3590
Message
Sat Jun 1, 2019 1:43 am (PDT) . Posted by:
"jjgonzalez jjgonzalez" jjgsgp
C/2018 R3 (Lemmon):
2019 May. 30.93 UT: m1=10.1, Dia.=4', DC=2/, 20 cm SCT (77x).
[ Altitude: 18°. Sidgwick method. Tycho-2 comparison stars. SQM: 21.0.].
C/2019 D1 (Flewelling):
2019 May. 31.10 UT: m1=13.2, Dia.=0.5', DC=5, 20 cm SCT (200x).
[ Motion checked over a 20-min period. Nearby field stars checked
in DSS. Limiting star magnitude near comet: 14.7 (AQ).
Sidgwick method. APASS comparison stars. SQM: 21.1.].
29P/Schwassmann-Wachmann:
2019 May. 31.11 UT: m1=11.2, Dia.=2', DC=2/, 20 cm SCT (100x).
[ In evolution after the recent outburst. Altitude: 12°.
Beginning of astronomical twilight. Sidgwick method.
APASS comparison stars. SQM: 20.8.].
( Pandorado, Leon, Spain, 42º 47' N, 6º 00' W, alt. 1190 m;
SQM : 21.4 at zenit ).
J. J. Gonzalez Suarez
----------------------------------------------------------
2019 May. 30.93 UT: m1=10.1, Dia.=4', DC=2/, 20 cm SCT (77x).
[ Altitude: 18°. Sidgwick method. Tycho-2 comparison stars. SQM: 21.0.].
C/2019 D1 (Flewelling):
2019 May. 31.10 UT: m1=13.2, Dia.=0.5', DC=5, 20 cm SCT (200x).
[ Motion checked over a 20-min period. Nearby field stars checked
in DSS. Limiting star magnitude near comet: 14.7 (AQ).
Sidgwick method. APASS comparison stars. SQM: 21.1.].
29P/Schwassmann-Wachmann:
2019 May. 31.11 UT: m1=11.2, Dia.=2', DC=2/, 20 cm SCT (100x).
[ In evolution after the recent outburst. Altitude: 12°.
Beginning of astronomical twilight. Sidgwick method.
APASS comparison stars. SQM: 20.8.].
( Pandorado, Leon, Spain, 42º 47' N, 6º 00' W, alt. 1190 m;
SQM : 21.4 at zenit ).
J. J. Gonzalez Suarez
----------------------------------------------------------
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
--
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
BAA Newsletter Issue 26 - June JBAA now available on-line
Brighter Comets, Venus elongations and wandering asteroids
The BAA's latest newsletter
Welcome to the June JBAA, now on line
Demonstrating our growing band of international members the Journal
editor was pleased to place American Adam Block's beautiful image of
the Foetus nebula on the front page.
This month sees another packed Journal hitting our doormats, physical
and cyber, leading with four interesting and professionally written
papers covering the full breadth of amateur astronomy. Johnathan
Shanklin continues with his report of the Brighter Comets of 2014, (84
comets were assigned 2014 designations), Richard McKim presents the
eastern and western elongations of Venus, 2007-17 this time focussing
on the planet's nocturnal hemisphere. John Rogers' series, together
with Gianluigi Adamoli, on Jupiter's North Equatorial Belt continues
and Jean Meeus aptly presents his findings on the very unusual orbit
of the co-orbital asteroid, 2015 BZ 509 of Jupiter.
The President, Callum Potter reports on the new plaque in memory of
Sir Patrick Moore at his old home, Farthings, as part of the Selsey
Heritage Trail. Nick Hewitt has some choice images of the black hole
in M87, Simon Brink in Melbourne, Australia calls for BAA volunteers
to assist Museums Victoria in the restoration of the Great Melbourne
Telescope. Contact Simon Brink at shrink@museum.vic.gov.au if you
think you can help.
Amongst the Sections, Sandra Brantingham, Director of the Auroral and
NLC Section is turning her Section's focus to NLCs as the sun
continues to disoblige us - commiserations to the Solar Section. And,
in this 50th anniversary year of the Moon landings, Bill Leatherbarrow
recounts the story of the relationship between the US Lunar
Exploration program and the work of the BAA Lunar Section. Don't
forget the Variable Star Section's campaign to observe old Nova HR
Lyr.
Richard McKim announces that after 15 years as Director he is handing
over the reins of the Mercury and Venus Section to Paul Abel. Thanks
to Richard for all his excellent work in leading this Section.
Did you know that the International Astronomical Union (IAU)
celebrates its 100th Anniversary in July this year? Coming into being
after the end of the First World War with just 7 members of which the
UK was one, it is now 82 members strong. A year of events is taking
place. Richard Miles attended IAU100 Amateur Astronomy Day in
Brussels and takes us through the day which ended with a star party in
Place de L'Agora in Brussels. Looks like quite a party.
David Arditti writes another of his articles on techniques, this one
helping us to understanding image defects, cutting through the
technical stuff with a plain speaking scythe. In the archives John
Chuter has, amongst other interesting things, recovered the October
1994 JBAA showing the 'carpet bombing' of Jupiter by P/Shoemaker-Levy
9. Look out also for his new series on artefacts from the Archives.
Archive Resources on the Web can be found here including the lantern
slides collection.
With much more in the Observers' Forum, BAA Updates, Letters, and
Meeting reports, there is plenty to read whilst waiting for it to get
dark!
StarLink Satellites
David Arditti kindly drew our attention to the issue of these
satellites recently released by Elon Musk, during his Sky Notes at the
end of the recent BAA Ordinary meeting. You have only to take a look
at the Community Forum discussion to see the consequences that the
passing of these satellites may have on our observing. Nick James and
others have posted various images (see left) and video of their
passing across the night sky. There are also suggestions of how to
deal with them intruding on images....good luck.
Paul Abel and Pete Lawrence - the Winchester Challenge continues
If you didn't catch Saturn and Pluto together on 1st June when they
were just 3.3 degrees apart, then there is always the next observing
opportunity which is to observe the variation of Iapetus, the third
largest moon of Saturn. With its two-tone surface it appears to vary
in magnitude during its orbit. It's a good time to get started now
and try and catch it at various intervals in its orbit.
Latest Section Circular from the Variable Star Section
Hot off the BAA Website is the latest circular from the VSS. It is
now available to download. This is the last one from Roger Pickard as
Director, a position he has held for a remarkable 20 years. Taking
over is Jeremy Shears, but Roger will continue as Assistant Director.
Great work Roger.
And Also the Lunar Section Circular
This one will be live on this link in a few days. It leads with the
exciting news that the IAU has officially named Minor Planet TG12
after the BAA lunar domes coordinator Raf Lena. It is a main belt
asteroid and will now be termed '102224 Raffaellolena'.
Diary Dates
8th June 2019 - Historical Section Meeting - West Berkshire Mencap
Centre, Enborne Gate, Newbury, RG14 6AT - covering Herschel, Visual
aids, Fiammetta Wilson and Dr Sian Prosser, RAS Librarian and
Archivist, will speak on 'How to do Research in Astronomical History'.
15th June 2019 - Webb Deep Sky AGM - Institute of Astronomy,
University of Cambridge, Madingley Rd, Cambridge CB3 0HA. See also
this link for the Deep Sky website line-up of speakers.
22nd June 2019 - BAA Summer Meeting Astronomy and Space To-day -
Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX. A
stunning line-up of professional and amateur speakers - including Dr
Jackie Davies, Professor Peter Doel, Dr Chris Pearson, Dr Barry
Kellett (RAL Space) and not forgetting our very own Dr David Boyd.
Bookings are filling up fast now so get yours in quickly.
24th August 2019 - Spectroscopy Training Workshop - 9 Margaret Street,
Birmingham, B3 3BS. An opportunity for anyone needing a help with the
software for processing their spectra. We will be covering the two
software packages BASS Project and ISIS. To get the most out of the
workshop attendees should bring along a laptop with the software
installed.
For full details of all meetings please go to https://britastro.org/meetings
Editor - Janice McClean
(The editor is aware that this Newsletter appears differently
depending on the browser used. She apologises for what appear to be
errors in layout, but this cannot be rectified for every system.
However the typos are all her own.)
________________________________
Copyright © 2019 British Astronomical Association, All rights reserved.
This is the BAA electronic newsletter mailing list. You are receiving
this email because you opted in on our website,
https://www.britastro.org
Our mailing address is:
British Astronomical Association
Burlington House
Piccadilly
London, London W1J 0DU
United Kingdom
Add us to your address book
--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and
also a friend of Kessingland Beach (Watchman)
--
Profile: http://www.google.com/profiles/astrocomera
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and
Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland
Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
The BAA's latest newsletter
Welcome to the June JBAA, now on line
Demonstrating our growing band of international members the Journal
editor was pleased to place American Adam Block's beautiful image of
the Foetus nebula on the front page.
This month sees another packed Journal hitting our doormats, physical
and cyber, leading with four interesting and professionally written
papers covering the full breadth of amateur astronomy. Johnathan
Shanklin continues with his report of the Brighter Comets of 2014, (84
comets were assigned 2014 designations), Richard McKim presents the
eastern and western elongations of Venus, 2007-17 this time focussing
on the planet's nocturnal hemisphere. John Rogers' series, together
with Gianluigi Adamoli, on Jupiter's North Equatorial Belt continues
and Jean Meeus aptly presents his findings on the very unusual orbit
of the co-orbital asteroid, 2015 BZ 509 of Jupiter.
The President, Callum Potter reports on the new plaque in memory of
Sir Patrick Moore at his old home, Farthings, as part of the Selsey
Heritage Trail. Nick Hewitt has some choice images of the black hole
in M87, Simon Brink in Melbourne, Australia calls for BAA volunteers
to assist Museums Victoria in the restoration of the Great Melbourne
Telescope. Contact Simon Brink at shrink@museum.vic.gov.au if you
think you can help.
Amongst the Sections, Sandra Brantingham, Director of the Auroral and
NLC Section is turning her Section's focus to NLCs as the sun
continues to disoblige us - commiserations to the Solar Section. And,
in this 50th anniversary year of the Moon landings, Bill Leatherbarrow
recounts the story of the relationship between the US Lunar
Exploration program and the work of the BAA Lunar Section. Don't
forget the Variable Star Section's campaign to observe old Nova HR
Lyr.
Richard McKim announces that after 15 years as Director he is handing
over the reins of the Mercury and Venus Section to Paul Abel. Thanks
to Richard for all his excellent work in leading this Section.
Did you know that the International Astronomical Union (IAU)
celebrates its 100th Anniversary in July this year? Coming into being
after the end of the First World War with just 7 members of which the
UK was one, it is now 82 members strong. A year of events is taking
place. Richard Miles attended IAU100 Amateur Astronomy Day in
Brussels and takes us through the day which ended with a star party in
Place de L'Agora in Brussels. Looks like quite a party.
David Arditti writes another of his articles on techniques, this one
helping us to understanding image defects, cutting through the
technical stuff with a plain speaking scythe. In the archives John
Chuter has, amongst other interesting things, recovered the October
1994 JBAA showing the 'carpet bombing' of Jupiter by P/Shoemaker-Levy
9. Look out also for his new series on artefacts from the Archives.
Archive Resources on the Web can be found here including the lantern
slides collection.
With much more in the Observers' Forum, BAA Updates, Letters, and
Meeting reports, there is plenty to read whilst waiting for it to get
dark!
StarLink Satellites
David Arditti kindly drew our attention to the issue of these
satellites recently released by Elon Musk, during his Sky Notes at the
end of the recent BAA Ordinary meeting. You have only to take a look
at the Community Forum discussion to see the consequences that the
passing of these satellites may have on our observing. Nick James and
others have posted various images (see left) and video of their
passing across the night sky. There are also suggestions of how to
deal with them intruding on images....good luck.
Paul Abel and Pete Lawrence - the Winchester Challenge continues
If you didn't catch Saturn and Pluto together on 1st June when they
were just 3.3 degrees apart, then there is always the next observing
opportunity which is to observe the variation of Iapetus, the third
largest moon of Saturn. With its two-tone surface it appears to vary
in magnitude during its orbit. It's a good time to get started now
and try and catch it at various intervals in its orbit.
Latest Section Circular from the Variable Star Section
Hot off the BAA Website is the latest circular from the VSS. It is
now available to download. This is the last one from Roger Pickard as
Director, a position he has held for a remarkable 20 years. Taking
over is Jeremy Shears, but Roger will continue as Assistant Director.
Great work Roger.
And Also the Lunar Section Circular
This one will be live on this link in a few days. It leads with the
exciting news that the IAU has officially named Minor Planet TG12
after the BAA lunar domes coordinator Raf Lena. It is a main belt
asteroid and will now be termed '102224 Raffaellolena'.
Diary Dates
8th June 2019 - Historical Section Meeting - West Berkshire Mencap
Centre, Enborne Gate, Newbury, RG14 6AT - covering Herschel, Visual
aids, Fiammetta Wilson and Dr Sian Prosser, RAS Librarian and
Archivist, will speak on 'How to do Research in Astronomical History'.
15th June 2019 - Webb Deep Sky AGM - Institute of Astronomy,
University of Cambridge, Madingley Rd, Cambridge CB3 0HA. See also
this link for the Deep Sky website line-up of speakers.
22nd June 2019 - BAA Summer Meeting Astronomy and Space To-day -
Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX. A
stunning line-up of professional and amateur speakers - including Dr
Jackie Davies, Professor Peter Doel, Dr Chris Pearson, Dr Barry
Kellett (RAL Space) and not forgetting our very own Dr David Boyd.
Bookings are filling up fast now so get yours in quickly.
24th August 2019 - Spectroscopy Training Workshop - 9 Margaret Street,
Birmingham, B3 3BS. An opportunity for anyone needing a help with the
software for processing their spectra. We will be covering the two
software packages BASS Project and ISIS. To get the most out of the
workshop attendees should bring along a laptop with the software
installed.
For full details of all meetings please go to https://britastro.org/meetings
Editor - Janice McClean
(The editor is aware that this Newsletter appears differently
depending on the browser used. She apologises for what appear to be
errors in layout, but this cannot be rectified for every system.
However the typos are all her own.)
________________________________
Copyright © 2019 British Astronomical Association, All rights reserved.
This is the BAA electronic newsletter mailing list. You are receiving
this email because you opted in on our website,
https://www.britastro.org
Our mailing address is:
British Astronomical Association
Burlington House
Piccadilly
London, London W1J 0DU
United Kingdom
Add us to your address book
--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and
also a friend of Kessingland Beach (Watchman)
--
Profile: http://www.google.com/profiles/astrocomera
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and
Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland
Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
Tuesday, 28 May 2019
[BAA-ebulletin 01027] Reminder - Historical Section Meeting - Saturday June 8th 2019 - Newbury
BAA electronic bulletin
Reminder - Historical Section Meeting - Saturday June 8th 2019 - Newbury
This is a reminder for the next meeting of the BAA Historical Section
in Newbury on June 8th
Date: Saturday June 8th 2019Time: 10:00 - 17:00 (doors open at
09:30)Venue: Mencap Centre, Enborne Gate, Newbury RG14 6ATCost:
10 pounds for BAA members, 15 pounds for non-members (includes lunch)
You can book in advance or pay at the door; advance booking is
preferred.Please use the form at www.britastro.org/historical2019 or
book through the BAA shop.
Timetable:
09:30 Doors open
09:30 – 10:00 Refreshments
10:00 – 10:10 Introduction and Welcome
10:10 – 11:05 Dr. Stuart Eves 'William Herschel and the
Rings of Uranus'
11:05 – 12:00 Eddie Carpenter 'The History of Visual
Aids in Astronomy 1824-1940'
12:00 – 13:30 Lunch Break (there are not many eating places close by
so the price includes a lunch buffet)
13:30 – 13:35 Welcome Back
13:35 - 14:30 Bill Barton 'Fiametta Wilson - Musician
and Astronomer'
14:30 - 15:25 Dr. Sian Prosser 'How to do Research in Astronomical History'
15:25 – 15:50 Refreshments
15:50 – 16:50 Bob Mizon 'The History of the Dark Sky Movement'
16:50 - 17:00 Concluding Remarks
17:00 Meeting Closes
There is plenty of parking in the grounds of the Mencap Centre.
Newbury Station is fifteen minutes walk away.
The Mencap Centre, Newbury is the meeting place of our hosts, Newbury
Astronomical Society. Newbury AS also meet on Friday June 7th, and
anyone staying overnight is invited to attend.
More details on our web site - www.britastro.org/history
Historical Section Director: Mike Frost frostma@aol.comDeputy
Director: Lee Macdonald leetmacdonald@gmail.com
BAA-ebulletin mailing list
This is an announcements only list - visit:
http://lists.britastro.org/mailman/listinfo/baa-ebulletin
(c) 2018 British Astronomical Association http://www.britastro.org/
--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and
also a friend of Kessingland Beach (Watchman)
--
Profile: http://www.google.com/profiles/astrocomera
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and
Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland
Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
Reminder - Historical Section Meeting - Saturday June 8th 2019 - Newbury
This is a reminder for the next meeting of the BAA Historical Section
in Newbury on June 8th
Date: Saturday June 8th 2019Time: 10:00 - 17:00 (doors open at
09:30)Venue: Mencap Centre, Enborne Gate, Newbury RG14 6ATCost:
10 pounds for BAA members, 15 pounds for non-members (includes lunch)
You can book in advance or pay at the door; advance booking is
preferred.Please use the form at www.britastro.org/historical2019 or
book through the BAA shop.
Timetable:
09:30 Doors open
09:30 – 10:00 Refreshments
10:00 – 10:10 Introduction and Welcome
10:10 – 11:05 Dr. Stuart Eves 'William Herschel and the
Rings of Uranus'
11:05 – 12:00 Eddie Carpenter 'The History of Visual
Aids in Astronomy 1824-1940'
12:00 – 13:30 Lunch Break (there are not many eating places close by
so the price includes a lunch buffet)
13:30 – 13:35 Welcome Back
13:35 - 14:30 Bill Barton 'Fiametta Wilson - Musician
and Astronomer'
14:30 - 15:25 Dr. Sian Prosser 'How to do Research in Astronomical History'
15:25 – 15:50 Refreshments
15:50 – 16:50 Bob Mizon 'The History of the Dark Sky Movement'
16:50 - 17:00 Concluding Remarks
17:00 Meeting Closes
There is plenty of parking in the grounds of the Mencap Centre.
Newbury Station is fifteen minutes walk away.
The Mencap Centre, Newbury is the meeting place of our hosts, Newbury
Astronomical Society. Newbury AS also meet on Friday June 7th, and
anyone staying overnight is invited to attend.
More details on our web site - www.britastro.org/history
Historical Section Director: Mike Frost frostma@aol.comDeputy
Director: Lee Macdonald leetmacdonald@gmail.com
BAA-ebulletin mailing list
This is an announcements only list - visit:
http://lists.britastro.org/mailman/listinfo/baa-ebulletin
(c) 2018 British Astronomical Association http://www.britastro.org/
--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and
also a friend of Kessingland Beach (Watchman)
--
Profile: http://www.google.com/profiles/astrocomera
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and
Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland
Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
Monday, 27 May 2019
Fwd: [CometObs] Digest Number 3587
1 Message
Digest #3587
Message
Sat May 25, 2019 1:19 am (PDT) . Posted by:
"Castell.Nova" szasa0
Yesterday I have observed visually these two comets in northwestern sky:
C/2018 R3 (Lemmon)
2019 May. 24.85UT: m1=11.6, Dia.=1.8', DC=4, 50 cm reflector (123x)
C/2018 W2 (Africano)
2019 May. 24.85UT: m1=14.7, Dia.=0.3', DC=3, 50 cm reflector (300x)
Sandor Szabo
V C/2018 W2 (Africano) 2019 05 24.87 S 14.7 U4 50.0 L 300 0.3 3
V C/2018 R3 (Lemmon) 2019 05 24.85 S 11.6 U4 50.0 L 123 1.8 4
C/2018 R3 (Lemmon)
2019 May. 24.85UT: m1=11.6, Dia.=1.8', DC=4, 50 cm reflector (123x)
C/2018 W2 (Africano)
2019 May. 24.85UT: m1=14.7, Dia.=0.3', DC=3, 50 cm reflector (300x)
Sandor Szabo
V C/2018 W2 (Africano) 2019 05 24.87 S 14.7 U4 50.0 L 300 0.3 3
V C/2018 R3 (Lemmon) 2019 05 24.85 S 11.6 U4 50.0 L 123 1.8 4
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
--
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
Monday, 20 May 2019
Comets
Comet Magnitude Trend Observable When
visible Last visual observation
PanSTARRS (2017 T2) 10.5 bright Conjunction
2019 April
ASASSN (2018 N2) 13 bright Poor elongation
2019 January
PanSTARRS (2016 R2) 13 varies 60 N to 10 S all
night 2019 January
123P/West-Hartley 13 fade 55 N to 30 S evening
2019 May
Iwamoto (2018 Y1) 13 fade Poor elongation
2019 April
ATLAS (2017 M4) 13 fade 20 N to 90 S best
morning 2018 October
29P/Schwassmann-Wachmann 13 ? varies Poor elongation
2019 January
78P/Gehrels 13.5 fade Conjunction
2019 January
38P/Stephan-Oterma 13.5 fade 60 N to 20 S best
evening 2019 February
PanSTARRS (2016 M1) 13.5 fade 20 S to 90 S early
evening 2018 September
--
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and
also a friend of Kessingland Beach (Watchman)
--
Profile: http://www.google.com/profiles/astrocomera
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and
Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland
Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
visible Last visual observation
PanSTARRS (2017 T2) 10.5 bright Conjunction
2019 April
ASASSN (2018 N2) 13 bright Poor elongation
2019 January
PanSTARRS (2016 R2) 13 varies 60 N to 10 S all
night 2019 January
123P/West-Hartley 13 fade 55 N to 30 S evening
2019 May
Iwamoto (2018 Y1) 13 fade Poor elongation
2019 April
ATLAS (2017 M4) 13 fade 20 N to 90 S best
morning 2018 October
29P/Schwassmann-Wachmann 13 ? varies Poor elongation
2019 January
78P/Gehrels 13.5 fade Conjunction
2019 January
38P/Stephan-Oterma 13.5 fade 60 N to 20 S best
evening 2019 February
PanSTARRS (2016 M1) 13.5 fade 20 S to 90 S early
evening 2018 September
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Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and
also a friend of Kessingland Beach (Watchman)
--
Profile: http://www.google.com/profiles/astrocomera
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and
Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland
Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
Friday, 17 May 2019
Fwd: [CometObs] Digest Number 3586
1 Message
Digest #3586
Message
Thu May 16, 2019 11:28 am (PDT) . Posted by:
"Thomas Lehmann" ewelot
Please find enclosed a list of my recent comet observations in ICQ format.
Magnitudes are derived from large aperture photometry of CCD/DSLR images
(using green filter or green color channel) and are supposed to conform
to visual estimates of total coma magnitudes.
Remote observations were carried out using telescopes from iTelescope.net.
For image reduction and photometric analysis I used my AIRTOOLS software
(see https://github.com/ewelot/airtools).
Thomas Lehmann
Weimar, Germany
2016M1 2019 05 12.36 Z 12.6 AQ 10.6R 5a720 5.0 0.16 179 LEHaaI C 5.00mSTL KA1 AIT 5 3.5s 3.5 mlim=18.4, CCD/G remote (SSO), moon 54% dist 83 deg
2016R2 2019 05 15.02 Z 15.2 AQ 20.0L 4F482 2.4 LEHaaI C 2.40mPDS CAC AIT 5 1.2s 1.2 mlim=20.4, DSLR green, moon 82% dist 57 deg
2017K2 2019 05 13.01 Z 17.0 AQ 20.0L 4I965 0.8 LEHaaI C 0.80mPDS CAC AIT 5 1.2s 1.2 mlim=21.4, DSLR green, moon 61% dist 90 deg
2018W2 2019 05 12.90 Z 14.2 AQ 20.0L 4E764 2.7 0.02 57 LEHaaI C 2.70mPDS CAC AIT 5 1.2s 1.2 mlim=20.8, DSLR green, moon 60% dist 81 deg
2018W2 2019 05 14.89 Z 14.5 AQ 20.0L 4C482 1.9 0.02 44 LEHaaI C 1.90mPDS CAC AIT 5 1.2s 1.2 mlim=20.0, DSLR green, moon 81% dist 99 deg
2019D1 2019 05 09.43 Z 13.0 AQ 10.6R 5A980 6.1 0.17 256 LEHaaI C 6.10mSTL KA1 AIT 5 3.5s 3.5 mlim=19.0, CCD/G remote (Mayhill)
2019D1 2019 05 15.44 Z 13.0 AQ 10.6R 5A080 5.8 0.18 258 LEHaaI C 5.80mSTL KA1 AIT 5 3.5s 3.5 mlim=19.1, CCD/G remote (Mayhill)
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
--
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
Monday, 6 May 2019
Fwd: [CometObs] Digest Number 3582
1 Message
Digest #3582
Message
Sun May 5, 2019 9:05 am (PDT) . Posted by:
"jjgonzalez jjgonzalez" jjgsgp
123P/West-Hartley:
2019 May 4.02 UT: m1=12.3, Dia.=2', DC=3, 20 cm SCT (100x).
[ Elongated coma. Sidgwick method. APASS comparison stars. SQM: 21.3.].
( Alto del Castro, Leon, Spain, 42º 55' N, 5º 48' W, alt. 1720 m;
SQM : 21.5 at zenit ).
J. J. Gonzalez Suarez
----------------------------------------------------------
2019 May 4.02 UT: m1=12.3, Dia.=2', DC=3, 20 cm SCT (100x).
[ Elongated coma. Sidgwick method. APASS comparison stars. SQM: 21.3.].
( Alto del Castro, Leon, Spain, 42º 55' N, 5º 48' W, alt. 1720 m;
SQM : 21.5 at zenit ).
J. J. Gonzalez Suarez
----------------------------------------------------------
Good Clear Skies
--
Astrocomet
--
Colin James Watling
--
Various Voluntary work-Litter Picking for Parish Council (Daytime) and also a friend of Kessingland Beach (Watchman)
--
--
Real Astronomer and head of the Comet section for LYRA (Lowestoft and Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)
--
Lyra Main Website: http://www.lyra-astro.co.uk/
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