BOSS team SN 50

[PeterM]

Hi all,

Well BOSS have done it, 50 discoveries in just 4 years! Below is also my 6th personal discovery.

On Sunday evening I imaged PGC18880 (aka ESO121-26) a pretty 12.6 magnitude Spiral Galaxy in Pictor.
The Possible Supernova (PSN) was discovered at magnitude 14.8r and has brightened to mag 14.5r, a visual target for medium-larger scopes and possibly one for those who want to have a go at a spectra.

We are waiting for the Pros to let us know what type of SN and as this galaxy is only 104 MLY away it should get some good follow up. There have been 2 previous SN in this galaxy 2008M & 2009mg

By the way, those who visually spot this SN, cast your mind back 104 million years and think about what was happening here on Earth at the time the light from this "new star" began its journey towards us. The link here gives some food for your thoughts.
https://www.uwgb.edu/dutchs/EarthSC1...TEarthHist.htm

Below is data for the new discovery and a link to the Bright Supernova page.

PSN J06213846-5942506, CBAT TOCP discovered 2012/12/16.533 by Peter Marples (BOSS)
Found in ESO 121-26 at R.A. = 06h21m38s.46, Decl. = -59°42'50".6 (= PGC 18880)
Located 2".3 west and 93".6 north of the center of ESO 121-26 (Discovery image)
Mag 14.8:12/16, Type unknown (References: SN 2009mg, 2008M)
http://www.rochesterastronomy.org/snimages/

As this is our 50th SN I have asked Martin Pugh if he would kindly do one of his superb images on this galaxy, he has accepted and was hard at work on it last night, so stay tuned to see what no doubt will be a stunning image.

To those who can try for a spectra please do and when we get the data from the pros we will be posting that here.

To all Ice In Space members who give BOSS great support - thank you indeed, we are so proud to be members of this community and post our discoveries here first. Please visit our webpage
http://bosssupernova.com/

To the BOSS team, Stu Parker, Greg Bock, Pat Pearl, Colin Drescher and Brendan Downs - congratulations to us for getting to 50 roll on 100!

Disclaimer - if the end of the world occurs on Friday it had nothing to do with this latest supernova

Peter Marples

[Shark Bait (Stu)]

Happy 50th. A Big effort from the BOSS team.

[allan gould]

Happy 50th from me and boy that Sn is quite a away from the main galaxy. Well picked up Peter and may you have many more.

[Greg Bock (Greg Bock)]

Hi all,
yes, congrats to Peter for number 50, we have all been trying hard in spite of the poorish weather in both NZ and SE Qld lately, to find number 50.
I missed out on the discovery action when Peter found this one, as I had left my telephone in the house while I was fiddling with the polar alignment, so I didn't hear him ring me several times during the initial flurry of action and call to arms for assistance...doh!!

Anyway, 24 hours later, and here's another finder chart made from 12 x 30 second images last night under poor seeing, and in between clouds rolling through, mixed with a bit of bushfire smoke! Magnitude is about 14.6R, and brightning.

It's a bit of a visual challenge, but I'm sure looking forward to any colour pics that anyone can capture!

Clear skies, looking forward to number 100 for BOSS!

[Martin Pugh]

Yes, congratulations to BOSS and Peter in particular.

At Peter's request I went at it last night and I have already acquired 3 hours of RGB (1 hour each) and 2 hours of luminance. I looked at the data this morning and that SN is amazing.

Gonna be clear tonight also, so the scope will be trained on it again all night.

If anyone wants to see the early results, please PM me, but I would rather wait until I get a few hours.

cheers
Martin

[Greg Bock (Greg Bock)]

gr8 stuff Martin, looking forward to this one!!

[astroron (Ron)]

Fantastic news Peter and the BOSS team,I hope it gets right enough for me to have a go at observing it
Cheers

[stardust steve (Steve)]

Well done Peter and team BOSS

Looking forward to your image Martin.

[Terry B]

Well done guys.
I'm on holidays so can't try a spectra of this one.
Terry

[peter_4059 (Peter)]

Great news Peter. Well done BOSS team.

[Forgey (Paula)]

Well done Peter, congrats BOSS team!

[naskies (Dave)]

Congrats Peter! Well deserved and well done!

[Ric]

Congrats Pete, that is an excellent achievement from the BOSS team.

[scagman (John)]

Congrates and happy 50th

Cheers

[Rob_K]

A worthy bat-wave to the crowd (us) Peter, but the job's not done yet. The Southern Hemisphere needs a big innings from BOSS so I'd advise that you take fresh guard, adjust the box, fiddle with the strap on your helmet, spit on the ground, play each supernova on its merits and above all concentrate as you move towards your century.

Seriously great stuff from you & BOSS, congratulations!

Cheers -

[PeterM]

Originally Posted by rob_k

a worthy bat-wave to the crowd (us) peter, but the job's not done yet. The southern hemisphere needs a big innings from boss so i'd advise that you take fresh guard, adjust the box, fiddle with the strap on your helmet, spit on the ground, play each supernova on its merits and above all concentrate as you move towards your century. :p

seriously great stuff from you & boss, congratulations!

Cheers -

Howzat? Not out!!!
I like that, thanks

[Blue Skies (Jacquie)]

Well done! Here's to the next 50!

[gaa_ian (Ian)]

Great achievement Peter and BOSS, looking forward to the image too !

[gary]

Congratulations Peter and to the entire BOSS team on this particular discovery and on
the milestone of the 50th!

cast your mind back 104 million years and think about what was happening here on Earth at the time the light from this "new star" began its journey towards us.

It was a Tuesday just like any other and I remember it well ...

Well done again! We are all in awe of your skill & dedication.

[PeterM]

Hi all,

Thanks so much for your responses, greatly appreciated. Last nights image shows this PSN has brightened to mag 14.1r and should be a good visual target and perhaps a spectra could be obtained if suitably equipped. We expect to know more about it after the professionals take spectra in the next few days. Roger Groom has a pre- discovery image and Colin Drescher has produced a nice light curve that Col will post later.

In a nutshell,
8th December Roger and Stu Parker image the galaxy and there was no sign of the PSN down to their limiting magnitude.
14th Rogers pre-discovery image has the PSN at mag 15.5r
16th my discovery image has it at mag 14.8r
18th Rogers image has it at mag 14.3r
19th my image has it at 14.1r

So were are betting it is a type 1a supernova in a very fainter outer spiral arm. Looking so much forward to Martins image to see if it shows the outer arm.

P.S. as per post in another thread, we now know it is a very early type 1a.