So what's going on, how does all this happen, what are the reporting processes involved and how do Amateur Astronomer's make a contribution. All good questions!Stars blowing up are more common that you think. Whilst the mainstream media usually only pick up on a couple of Supernovae per year (usually the bright ones in well known galaxies), astronomers detect over 400 novae each year, which is more than one per day. Amateur astronomers make a significant number of these discoveries, and several teams have developed advanced techniques, processes and teamwork to systematiclly go after these interesting events. One great leader in this area of the amateur community is the BOSS team (Backyard Observatory Supernova Search) who have discovered 83 supernovae, one of which has rocked the astronomy community and resulted in the Hubble Space Telescope being swung into action for follow up measurements. Other regulars are a dedicated group of Japanese astronomers who hardly miss a trick: Koichi Itagaki, Meineko Sakura, Seiichiro Kiota (and their teams - appologies for not mentioning everyone), do great work. On the 14th January Mr Itagaki discovered a Supernova in NGC 3448. Well known amateur astronomer Patrick Wiggins also photographed it independently, quite by chance, without a targeted search. I assisted Patrick with his follow-up images, and Patrick later found Mr Itagaki was awarded the discovery as he had an earlier image from the night before. the BOSS team also leverage the time zones from New Zealand, to the east coast of Australia, and across to the west coast of Australia. Each part of the team performs different steps, photographing, processing, researching, following up and reporting. They have built strong partnerships with professional observatories who provide the spectral analysis, to quickly identify the supernova type. The BOSS team pride themselves on having never having submitted a false-positive report. Using a sophisticated DSLR camera on a tripod and subtracting images from night to night, comparing the differences, is another method used by amateur astronomers. This is surprisingly effective method for transient nova in the southern hemisphere. Tonight's discovery of the supernova in M82 was reported to the Central Bureau for Astronomical Telegrams [CBAT] by S.J Fossey and his class of students it was confirmed by Seiichiro Kiota and followed up by the MASTER Team in Russia, and Leonid Elenin from the ISON Team. The MASTER team are also great leaders and made 210 transient (includes supernova, nova) discoveries in 2013. So if I am photographing a galaxy and think I can see something different, what should I do, how do I check, who do I tell, if I think I might have found a Supernova/Nova event?
Step 1 - Re-photograph the area and check for asteroids and or artifacts in your image Step 2 - Check a previous known image of the same area and compare to make sure nothing was there previously. You need to be careful doing this as other images may have a different orientation to your's depending on the Position Angle of the camera they were taken with. It may be flipped horizonally and vertically to your image. One such site where you can get easy access historical images is the CDS (Centre de Données astronomiques de Strasbourg) Portal which has a searchable web interface for various star Catalogs (just enter the exact RA and Dec). Step 3 - Once you believe you have something - alert some of your collegues and get them to obtain some confirmation images. Step 4 - Report to CBAT with the exact postion to the nearest arc-second with an estimate of the magnitude and your location, telescope details, and discovery circumstances (eg PSN J09554214+6940260 where "Possible Super Nova" is RA is 09 55 42.14 and Dec +69 40 26.0). Step 5 - Wait and hope you are the first in - but you'll have to be quick ;-) Its always a great idea to get someone to check your work so you avoid embarrassing mistakes. Step 6 - Then sit back and wait for other astronomers with spectroscopic capabilities to confirm the Supernova type by assessing which Balmer Lines are present in the spectrum.Even though you might not hear about every supernova, this is a vibrant area of constant research that creates great excitment through the thrill of the chase for amateur astronomers and professionals around the world.