This was mostly a test exposure taken using Dean Salman's 10" Ritchey Chretien in Colorado. The subject is NGC 3184, a nice little spiral galaxy in Ursa Major. The image is nothing special but it does show a recently discovered supernova, the blue star near the centre.
Nice image Steve
A bright galaxy for the northern hemisphere observers at mag +9.1
A show piece you might say.
I observed the SN visually on a night of fairly good seeing with a 6mm radian
even though low down for me at 44° north was still able to pull it out.
At the time the SN was 14.5 mag.
It gives a good comparison to the SN 2016 adj in NGC 5128 with the colours.
5128 orange,3184 blue, so we can see what extinction does to supernova colours.
Cheers
Nice image Steve
A bright galaxy for the northern hemisphere observers at mag +9.1
A show piece you might say.
I observed the SN visually on a night of fairly good seeing with a 6mm radian
even though low down for me at 44° north was still able to pull it out.
At the time the SN was 14.5 mag.
It gives a good comparison to the SN 2016 adj in NGC 5128 with the colours.
5128 orange,3184 blue, so we can see what extinction does to supernova colours.
Cheers
Thanks for the info Ron. Actually I thought the galaxy magnitude was 10.4 but I think that's the blue magnitude rather than the visual. That's a good catch picking it out visually.
Thanks for the info Ron. Actually I thought the galaxy magnitude was 10.4 but I think that's the blue magnitude rather than the visual. That's a good catch picking it out visually.
Good training over 30 years of observing and about 16 years of those looking at faint galaxies for supernova's.
Missed a couple by that much One Robert Evens discovered only a few hours before me so no cigar the other by an american who found one in ngc1367 just a couple of hours before I spotted it.
Very cranky I was too.
Cheers
The mag should have been 9.6, and Blue mag as 10.3 or there about's.
I got to see M81 &M82 when I was up in Scotland last year, but unfortunately only through 10x60 bino's
They were the only two Messier objects missing from my messier list.
I hope to see them telescopically one night before I get too old.
Cheers
The mag should have been 9.6, and Blue mag as 10.3 or there about's.
I got to see M81 &M82 when I was up in Scotland last year, but unfortunately only through 10x60 bino's
They were the only two Messier objects missing from my messier list.
I hope to see them telescopically one night before I get too old.
Cheers
Both easy bright galaxies but slightly bland through the eyepiece. I haven't seen them in years but remember remarking that M82 looked like a smaller NGC55.
Both easy bright galaxies but slightly bland through the eyepiece. I haven't seen them in years but remember remarking that M82 looked like a smaller NGC55.
Nice catch, Steve! Will you get getting more northern data?
Cheers,
Rick.
Thanks Rick. Yes - that's certainly the plan. Currently it's a barter arrangement. Dean gets to use data from my scope in exchange for a night or two with his.
One Robert Evens discovered only a few hours before me so no cigar the other by an american who found one in ngc1367 just a couple of hours before I spotted it. 
