Category Archives: Supernova/Nova

Updated View of Supernova 2016gxp in NGC 51

Here is an updated view of supernova 2016gxp in the galaxy NGC 51 in the constellation Andromeda. To me, the supernova still appears to be brightening from the time of discovery. My magnitude estimate is 15.2 based on local star comparison.

ngc51_14min_101916

Tech Specs: Canon 6D, Meade 12” LX90, 56 x 15 seconds at ISO 3200 with additional darks and bias frames. Image Date: October 19, 2016.

Carpe noctem!

…Tom

Supernova 2016cok in Galaxy Messier 66 (Constellation Leo)

I managed to collect 5-minutes of data on Supernova 2016cok in galaxy Messier 66 (in the constellation Leo) last evening, June 1, 2016 before the clouds rolled in.  I place the magnitude at approximately 16.4 simply based on comparison to other stars in the field of view.  The 5-minute stacked image was using 15-second subs at ISO 5000. Equipment included a Canon 6D, Antares Focal Reducer and Meade 12” LX90 telescope. Messier 66 (M66) is a spiral galaxy about 36 million light-years away.

Supernova 2016cok

Supernova 2016cok

Clear skies!

…Tom

Updated View of Supernova SN2016bau in Galaxy NGC 3631

Here is an updated view of the recent supernova in the galaxy NGC 3631 that was discovered by Ron Arbour on March 3, 2016. The view below was taken on April 24, 2016 using a Meade 12” LX-90 telescope, Canon 6D camera both mounted on a Celestron CGEM DX mount. Total exposure time was 5-minutes using 15-second subframes at ISO 5000. I place the magnitude around +/- 16.0. I’m not sure how much longer before it slips out of my telescope view.

SN2016bau in NGC 3631

SN2016bau in NGC 3631

You can compare the current image to my earlier image taken on March 29, 2016 and that of the Sloan Digital Sky Survey without the supernova.

Comparison views of SN2016bau.

Comparison views of SN2016bau.

NGC 3631 is spiral galaxy about 50 million light year away.

Clear skies!

…Tom

Supernova SN 2016bau Observation in Galaxy NGC 3631

During my wide field imaging session on March 29, 2016 of the Messier pair M108 (Surfboard Galaxy) and M97 (Owl Nebula), I also caught a view of NGC 3631 in the lower right corner of the view. After zooming in on the galaxy, I noticed a bright star in one of the spiral arms, further investigation showed that this was, in fact, a supernova, SN2016bau, discovered on March 3, 2016 by Ron Arbour.

NGC 3631 unprocessed full frame.

NGC 3631 unprocessed full frame.

The wide field unprocessed image shows the stacked, full frame, 10-minute exposure using a Canon 6D and Canon EF 400mm f/5.6L USM lens mounted on an iOptron ZEQ25 mount. 10 x 60 seconds at ISO 3200, stacked in DeepSkyStacker and further processed in Adobe Lightroom and ImagesPlus.

Supernova SN2016bau

Supernova SN2016bau

The clipped, zoomed and enlarged image (above on left) is from the full frame view. I used a reference image of galaxy NGC 3631 from the Sloan Digital Sky Survey to show the galaxy without the supernova. The spiral galaxy is about 50 million light year away.

Clear skies!

…Tom

Supernova SN 2016bkv Observation in Galaxy NGC 3184

I caught a news story a few days ago about a supernova in galaxy NGC 3184 and decided to try and image it on March 29, 2016. Problem was the high winds here in Pennsylvania. The magnitude was listed in the 15 range, but decided to try imaging it using my Canon EF 400mm f/5.6L USM lens.

The wide field image below is a clip from a full frame, stacked 14-minute total exposure using a Canon 6D and Canon EF 400mm f/5.6L USM lens mounted on an iOptron ZEQ25 mount. 14 x 60 seconds at ISO 3200, stacked in DeepSkyStacker and further processed in Adobe Lightroom and ImagesPlus.

sn2016bkv_2

I then clipped the galaxy from the full frame view and processed it in Lightroom. I found a great pre-supernova (baseline) image by Adam Block (who gave me permission to use his image for comparison purposes – thank you Adam). Adam’s image can be found at http://www.caelumobservatory.com/obs/n3184.html

Supernova SN 2016bkv

Supernova SN 2016bkv

I hope to do additional imaging as time permits.

Clear skies!

…Tom

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