What’s Up – Bath Astronomers

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Next monthly meeting

Wednesday 29th September
- Zoom & Museum

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Next Stargazing session

@ Wellow car park:
Paused due to Covid-19

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What are we up to?

Sep4

Visit our stall at 71st Annual Wellow Flower Show & Country Fair

4 SepWellow Lane, Bath, BA2 8, United Kingdom

Bath Astronomers will be running a stall at the annual Wellow Country Fair displaying telescopes, gizmos, and loads of things for the kids to do including make your own telescope and paper rockets. Fun runs for 4 hours from 1:30pm to 5:30pm and you can join us at Sports Field, centre of the village of Wellow, BA2 8QA.

Sep11

Visit our stall at Bathampton Village Show

11 SepHolcombe Lane BA2 6UL

Bath Astronomers will be setting up a stall at this year's Bathampton Village Show to delight the kids with dressing up, making paper rockets, and looking through telescopes. Adults welcome too to find all about the night sky.

Sep29

BA Monthly talk by Pete Richardson

29 SepZoom

Bath Astronomers meet up every month from September to June for a chat, share information and for a talk by a great speaker. This month's talk will be given by Pete Richardson and is on how to go about building your own 10" or even 20" telescope. Pete completed a 10" Newtonian reflector on a Dobsonian mount in 2020 and is now building a 20" instrument for the back garden. Pete is a renown astrophotographer and a keen amateur astronomer based in Bleadon, W-s-M. He is a member of Wells & Mendip Astronomers. Bath Astronomers monthly meeting are for new comers and members to meet up, enjoy perhaps a new topic and a cup of tea and a biscuit. Held on the last Wednesday of every month online or at the Herschel Museum of Astronomy, 19 New King Street. Doors open at 7:15pm and the events come to a close usually by 9:00pm. Online events are free and museum events have a small entry fee for non-members to help us cover costs. Talks are on the following subjects: practical astronomy, current astro science, and space exploration.

Oct27

BA Monthly talk by Prof Lucie Green

27 OctZoom

Bath Astronomers meet up every month from September to June for a chat, share information and for a talk by a great speaker. This month's talk will be given by Prof Lucie Green and is on the current research on solar physics and the mysteries the Sun holds. Lucie Green is a Professor of Physics and a Royal Society University Research Fellow based at the Mullard Space Science Laboratory, UCL’s Department of Space and Climate Physics. Lucie studies activity in the atmosphere of our nearest star, the Sun, looking in particular at immense magnetic fields in the Sun’s atmosphere which sporadically erupt into the Solar System. Lucie is very active in public engagement with science and delivers fascinating talks to schools, corporations and festivals on astronomy, space weather, climate change and the Sun. Bath Astronomers monthly meeting are for new comers and members to meet up, enjoy perhaps a new topic and a cup of tea and a biscuit. Held on the last Wednesday of every month online or at the Herschel Museum of Astronomy, 19 New King Street. Doors open at 7:15pm and the events come to a close usually by 9:00pm. Online events are free and museum events have a small entry fee for non-members to help us cover costs. Talks are on the following subjects: practical astronomy, current astro science, and space exploration.

Nov24

BA Monthly talk by Hannah Sergeant

24 NovZoom

Bath Astronomers meet up every month from September to June for a chat, share information and for a talk by a great speaker. This month's talk will be given by Hannah Sergeant and is on her research on the lunar regolith or Moon soil to everyone else. Hannah went to the University of Leicester where she was awarded an MSc with distinction in Space Exploration Systems. She is currently studying her PhD at the the Open University in water extraction from the lunar regolith. Hannah is a fellow of the Royal Astronomical Society and was awarded the Amelia Earhart Fellowship in 2019, an international award for women in aerospace science and engineering. In 2020 she was selected for the Forbes 30 Under 30 list in the field of Science and Healthcare. Bath Astronomers monthly meeting are for new comers and members to meet up, enjoy perhaps a new topic and a cup of tea and a biscuit. Held on the last Wednesday of every month online or at the Herschel Museum of Astronomy, 19 New King Street. Doors open at 7:15pm and the events come to a close usually by 9:00pm. Online events are free and museum events have a small entry fee for non-members to help us cover costs. Talks are on the following subjects: practical astronomy, current astro science, and space exploration.

Jan26

BA Monthly talk by Dr Tim Gregory

26 JanHerschel Museum of Astronomy

Bath Astronomers meet up every month from September to June for a chat, share information and for a talk by a great speaker. This month's talk will be given by Dr Tim Gregory and is on Meteorites. Bath Astronomers monthly meeting are for new comers and members to meet up, enjoy perhaps a new topic and a cup of tea and a biscuit. Held on the last Wednesday of every month online or at the Herschel Museum of Astronomy, 19 New King Street. Doors open at 7:15pm and the events come to a close usually by 9:00pm. Online events are free and museum events have a small entry fee for non-members to help us cover costs. Talks are on the following subjects: practical astronomy, current astro science, and space exploration.

Apr27

BA Monthly talk by Chris Starr, Cassini and Saturn

27 AprHerschel Museum of Astronomy

Wednesday 30th June – Monthly meeting. Bath Astronomers monthly meeting for all members and new comers to meet up, enjoy perhaps a new topic and a cup of tea and a biscuit. Held on the last Wednesday of every month at the Herschel Museum of Astronomy, 19 New King Street. The format is open and comprises an update for the month and a talk on an astronomy topic within the reach of amateurs. All visitors welcome and there is a charge of £5 which helps cover the cost of the venue. Reduced to £2 for juniors, students or Bath Astronomers members. Picture: Simon Holbeche

The Moon

Third Quarter (Illumination: 31.8%)
Age: 23.90 days (Phase: 80.9%)
Size: 29.5' (Distance: 405,503km)
Moon rise: 23:48
Moon set: 15:18

New Moon	First Quarter	Full Moon	Last Quarter
Sat 10 Jul	Sat 17 Jul	Sat 24 Jul	Sat 31 Jul
Sun 8 Aug	Sun 15 Aug	Sun 22 Aug	Mon 30 Aug
Tue 7 Sep	Mon 13 Sep	Mon 20 Sep	Wed 29 Sep
Wed 6 Oct	Wed 13 Oct	Wed 20 Oct	Thu 28 Oct

The Sun

Sunset: 19:55
End twilight: 22:40
Begin twilight: 01:54
Sunrise: 04:37

Current Meteor Showers

Shower	Start	Peak	End	ZHR
Piscis Austrinids	15 Jul	28 Jul	10 Aug	5
Southern Delta Aquariids	12 Jul	30 Jul	23 Aug	25
Alpha Capricornids	3 Jul	30 Jul	15 Aug	5
Perseids	17 Jul	13 Aug	24 Aug	110

Step by: Mode:
North latitude East longitude
DSOs Star names Constellation lines Constellation labels

Reproduced and extended by permission of Ernie Wright under GNU

The Planets

Planet	Rises	Sets	Constellation	Disk Size	Sun separation
Mercury	Monday 04:34:42	Monday 20:06:51	Cnc	5.0" (38%)	1.8°
Venus	Monday 07:45:16	Monday 21:05:57	Leo	12.7" (20%)	33.2°
Mars	Monday 06:40:47	Monday 20:44:04	Leo	3.7" (14%)	22.1°
Jupiter	Monday 20:34:05	Tuesday 06:25:04	Aqr	47.5" (96%)	161.5°
Saturn	Monday 19:50:29	Tuesday 04:36:18	Cap	18.0" (90%)	178.9°
Uranus	Sunday 22:50:05	Monday 13:38:54	Ari	3.5" (87%)	85.3°
Neptune	Monday 21:15:40	Tuesday 08:38:48	Aqr	2.3" (104%)	138.1°

Rise and Set times are with respect to Bath, UK. (%) indicates size compared to maximum possible. As Separation with the Sun approaches 0°, we have Conjunction. As it approaches 180°, we have Opposition. Planets will not be visible between Sunrise(04:35) and Sunset(19:57)

Messier objects due South now

Messier	Name	Type	Magnitude	Constellation
M44	Beehive Cluster	Open Cluster	3.1	Cancer
M67	NGC2682	Open Cluster	6.9	Cancer
M81	Bodes Nebula	Spiral Galaxy	6.8	Ursa Major
M82	Cigar Galaxy	Ir. Gx.	8.4	Ursa Major

Click on the Messier number for the finders guide for the deep sky object.

Spot the Space Station from Bath

Date	Mag	Start	Max	End

Latest Starlink Satellites - 4th February

Date	Satellite	Rise	Max	Set
Thu 05 Aug	STARLINK-1991	04:57:55 look SSE alt 11°	14°	05:00:32 look ESE alt 13°
Fri 06 Aug	STARLINK-1991	04:50:47 look S alt 11°	17°	04:55:46 look E alt 11°
Sat 07 Aug	STARLINK-1991	04:43:57 look S alt 11°	21°	04:49:42 look E alt 11°
Sun 08 Aug	STARLINK-1991	04:37:08 look SSW alt 11°	26°	04:43:39 look E alt 11°
Mon 09 Aug	STARLINK-1991	04:30:57 look SSW alt 14°	32°	04:37:37 look E alt 10°
Tue 10 Aug	STARLINK-1991	04:24:48 look SSW alt 17°	39°	04:31:16 look ENE alt 11°
Wed 11 Aug	STARLINK-1991	02:42:58 look ESE alt 12°	12°	02:43:59 look ESE alt 10°
Wed 11 Aug	STARLINK-1991	04:18:41 look SW alt 21°	47°	04:24:56 look ENE alt 11°
Thu 12 Aug	STARLINK-1991	02:36:46 look ESE alt 14°	14°	02:38:07 look E alt 11°
Thu 12 Aug	STARLINK-1991	04:12:17 look SW alt 22°	56°	04:18:35 look ENE alt 12°
Fri 13 Aug	STARLINK-1991	02:30:36 look ESE alt 17°	17°	02:32:18 look E alt 10°

This is a satellite from the 18th batch of 60 of the Starlink constellation launched4th February 2021

Prior Starlink Satellites - L16 - 20th January

Date	Satellite	Rise	Max	Set

This is one of the satellites from the 17th batch of 60 of the Starlink constellation launched on 20th January 2021

The Hubble Ultra Deep Field in Light and Sound

Have you heard about the Hubble Ultra-Deep Field? Either way, you've likely not heard about it like this -- please run your cursor over the featured image and listen! The Hubble Ultra-Deep Field (HUDF) was created in 2003-2004 with the Hubble Space Telescope staring for a long time toward near-empty space so that distant, faint galaxies would become visible. One of the most famous images in astronomy, the HUDF is featured here in a vibrant way -- with sonified distances. Pointing to a galaxy will play a note that indicates its approximate redshift. Because redshifts shift light toward the red end of the spectrum of light, they are depicted here by a shift of tone toward the low end of the spectrum of sound. The further the galaxy, the greater its cosmological redshift (even if it appears blue), and the lower the tone that will be played. The average galaxy in the HUDF is about 10.6 billion light years away and sounds like an F#. What's the most distant galaxy you can find? Note: Sounds will only play on some browsers. This week at NASA: Hubble #DeepFieldWeek