SN in M65 Leo
Posted 23 March 2013 - 03:48 AM
Posted 23 March 2013 - 06:53 AM
Posted 23 March 2013 - 04:55 PM
Posted 24 March 2013 - 05:13 AM
If, and I presume like me, he's a SN Hunter then it's a whole new ballgame that's extemely competitive and thus secretive! Some do nothing else eg recording in brief exposures maybe 100s of galaxies per clear night in a systemation fashion and compare with their previous library shots for changes. Could have been a chance discovery but I suspect not
I wonder if the discoverer Knew M65 so well or if he was using a chart that allowed him to recognize the "new" star in the image? JimP
My own SN hunting is perhaps more casual - I discovered mine [SN2011az] very 'early on' in search terms and have statistical a long way to go for the next.
Interestingly Tyler Allred of the CCD Forum recorded the M65 SN [on the same night as the discoverer] on the first target for his DIY astrograph but was unaware of it until I pointed it out to him. This is not unusual as most imagers don't examine their posted results [I do!] and are more concerned with matters of technique and Photoshop image processing. :o
Posted 24 March 2013 - 09:32 AM
Posted 24 March 2013 - 10:27 AM
Posted 25 March 2013 - 05:47 AM
Something like that! I usually target the Messier "lollypops" to have something to show for my imaging session but then offset, via Megastar s/ware, to a nearby group of gxys in the fov in one hit to increase gxy coverage! I also have Sloan DSS running in the backround on my laptop and bring up the same area as my downloaded shots in a split screen for a quick comparison and more detailed check later on suspect stars. Here's 'finished' pics of two adjacent fields grossing 40 gxys that had no apparent SN.
Hundreds of images certainly sounds tedious to me. But, to each his own. For a more laid back individual like yourself you image galaxies then compare the images to previous images made by yourself with the same equipment for any "new" stars? Is that correct? Jim
Like most SN hunters and those interested in a possible scientific return from imaging - I'm fussy about image orientation [North up/ East left] and precise image fov for comparison to pro atlases and dated header etc on image - something most CCD imagers avoid like the plague
Posted 25 March 2013 - 08:49 AM
Posted 28 March 2013 - 05:30 PM
Posted 29 March 2013 - 05:17 PM
Posted 31 March 2013 - 04:58 PM
new SN for myself. It does not seem to be doing much about
getting any brighter. Attached a single image of 3 minutes
taken with the PowerNewt F2.8 and DSLR at ISO 800.
Posted 01 April 2013 - 05:23 PM
Posted 03 April 2013 - 08:37 AM
Posted 03 April 2013 - 12:54 PM
in the sky so thanks for posting your images. The SN
certainly doesn't seem to be changing much over time.
Posted 14 April 2013 - 05:55 AM
Posted 14 April 2013 - 12:01 PM
Posted 18 April 2013 - 01:59 AM
23 X 3 minutes at ISO 800 with the DSLR and PowerNewt taken
on 30 March.
I tried to image the SN in NGC2554 but moon and hazy sky
making it impossible at this time. Weather is really not
the best being mostly cloudy.
Posted 15 May 2013 - 01:49 AM
visible at that time. DSLR 6 X 3 minutes @ ISO 800 using
PowerNewt F2.8. No calibration/processing other than crop
from full frame.