John Coffin - BAA Image Library

British Astronomical Association
Supporting amateur astronomers since 1890

Gallery

Observers

Objects

Sky map

Histogram

FAQs

Active filters

Select library

▶

▼

John Coffin's collections

Filter by object

▶

▼

Filter by upload date

▶

2020 (3)

▶

2019 (1)

▶

2018 (3)

▶

▼

Filter by observation date

▶

2020 (3)

▶

2019 (1)

▶

2018 (3)

John Coffin

I’m definitely a learner. I’ve been observing for a couple of years now and I’ve become very interested in spectroscopy with a Star Analyser. I’ve been working on techniques to increase the resolution of this simple device and have also started using an Alpy 600 spectroscope. I hope to collect spectra of cataclysmic variable stars and learn more about these fascinating objects.

Showing all 7 of this user's images.

Nova Cas 2020
John Coffin

Obs	2020 Sep 22 – 15:14 UTC
Upload	2020 Sep 23 – 15:19 UTC

Nova Cas 2020
John Coffin

Obs	2020 Aug 12 – 00:30 UTC
Upload	2020 Aug 13 – 07:33 UTC

Comet C 2020 F3 (NEOWI...
John Coffin

Obs	2020 Jul 21 – 00:26 UTC
Upload	2020 Aug 11 – 09:05 UTC

Quasar 3C 273
John Coffin

Obs	2019 Apr 10 – 23:30 UTC
Upload	2019 Apr 26 – 18:26 UTC

AG Draconis annotated ...
John Coffin

Obs	2018 Sep 14 – 17:30 UTC
Upload	2018 Oct 31 – 12:20 UTC

AG Draconis Spectra Se...
John Coffin

Obs	2018 Oct 28 – 23:00 UTC
Upload	2018 Oct 31 – 11:54 UTC

AG Draconis compared w...
John Coffin

Obs	2018 Oct 28 – 11:38 UTC
Upload	2018 Oct 31 – 11:48 UTC

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.

Registered charity no. 210769
Registered company no. 117572
For more information including contact details, click here.

Our privacy policy is here.