42 replies to this topic

[BQ Octantis]

I had to read this a few times only to realize you're from the future.

 

 

No, that's a typo. It was 2014—hence the name SN 2014J.

 

BQ

"Numbers mean things, too."

Edited by BQ Octantis, 25 May 2023 - 08:12 PM.

[DarrylS]

So at what day and time was the discovery

 I have data on the 20th at 8:56pm central. I could NEVER get that lucky as to photograph something like that 1st... 

 I literally have 1 photo from my asi2600mc and ES127mm of it. Then I moved on to another galaxy group.

The discovery was on the 19th, but it looks like there may be images coming out catching it on the 14th...

[PeterAB]

This is my observation of M101 and SN2023ixf from midnight May 25, 2023.   Seeing fair to good.    Transparency just under magnitude 4 naked eye limited by the moon and light wildfire smoke.

 

I estimate the supernova is near magnitude m11.   It was visible at the limit of direct vision in the eyepiece view (13mm Nagler T6).

 

Meade 8" SCT, 0.63 reducer, asi294, ir-uv cut.   SharpCap live stack, gain 130.

 

M101 with SN 2023ixf annotated.  1290 seconds (86x15).   The supernova was visible in one frame.   Longer exposure was to bring m101 out of the moonlight.   North up, east left.  53'x36' field of view.

 

 

Peter

 

 

[alphatripleplus]

The discovery was on the 19th, but it looks like there may be images coming out catching it on the 14th...

I captured M101 on May 14th with a 10minute total exposure that ended at 11.46pm Eastern Time taken with my AT130EDT and ASI290MM. There was no sign of the supernova in my image, and I matched the other stars in the field with later captures that others have posted with the supernova visible in those later pics.

[Sal Obs]

Finally got some decent skies to do some decent AP! This image of M101 with the supernova brighter than ever was taken under Bortle 2 skies in the center of Spain with a Vespera (no filters used). In total, 180 images over a 30 minutes integration.

 

Attached Thumbnails

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[DarrylS]

I captured M101 on May 14th with a 10minute total exposure that ended at 11.46pm Eastern Time taken with my AT130EDT and ASI290MM. There was no sign of the supernova in my image, and I matched the other stars in the field with later captures that others have posted with the supernova visible in those later pics.

I was going by the Rochester Astronomy supernova link posted earlier in the thread that includes an image from the 14th (and now one from the 13th). I just looked at those images and to my eye I don’t see it, so I’m not sure why they include those images on their page — maybe just to show the SN wasn’t there previously…?

[Sal Obs]

Finally got some decent skies to do some decent AP! This image of M101 with the supernova brighter than ever was taken under Bortle 2 skies in the center of Spain with a Vespera (no filters used). In total, 180 images over a 30 minutes integration.

It was pointed out to me the reason for the brightness of the SN is due to the fact that I dd not use any light pollution filters, and most galaxies have broad band emissions, which gets filtered out that way! So this image demonstrates more realistically the true brightness of the SN.

[alphatripleplus]

I got my first look at the supernova last night with almost a quarter moon. Set-up was AT130EDT reduced to f/5.5, ASI290MM mini, no filters and no binning, at 300 gain, captured with ASILive 1.8.1 in this 10 minute total exposure. North is up.

 

M101 + supernova; 40 x 15sec

 

 

The supernova is the brightest star in the image, and looks brighter than the galaxy's nucleus.

[BQ Octantis]

The supernova is the brightest star in the image, and looks brighter than the galaxy's nucleus.

Isn't that mind-boggling?! A whole galaxy—comprised of a trillion stars—outshined by just one in its death throes.

[steveincolo]

I got my first look at the supernova last night with almost a quarter moon. Set-up was AT130EDT reduced to f/5.5, ASI290MM mini, no filters and no binning, at 300 gain, captured with ASILive 1.8.1 in this 10 minute total exposure. North is up.

 

M101 + supernova; 40 x 15sec

 

M101_SN_f5.5_Light_Stack_40frames_15sec_RS_Bin1_19.6C_gain300_2023-05-27_001842.jpg

 

The supernova is the brightest star in the image, and looks brighter than the galaxy's nucleus.

I see the size of M101 forced you to add a reducer! 

[Daniel]

How bright is this thing going to get? 

[alphatripleplus]

I see the size of M101 forced you to add a reducer! 

Actually, I have a pre-supernova capture that I did at the scope's native f/7. I won't post it, but the FOV covers the spiral arm where the supernova appeared a few days later. 

[BQ Octantis]

How bright is this thing going to get? 

It already peaked.

[oneuke]

I captured M101 using my Dwarf 2 - bortle 7 skies below average transparency and seeing.  Dwarf 2 astro darks applied during stacking.

 

April 26th 90 subs at 10 seconds and 80 gain

 

 

 

May 15th 90 subs at 10 seconds and 80 gain

 

 

 

May 26th 120 subs at 15 seconds and 60 gain

 

 

 

I am still experimenting with the settings.  The autofocus was used in the May 26th capture.  I think it improved focus.  Thanks for announcing the supernova event.

[SchoolMaster]

GEM28, AT125EDL with 0.8 reducer, ZWO EAF, 533MM Pro camera, 780mm FL at f/6.3 and 0.98"/px image scale.

Flats, but no darks, Hot pixel removal only.  Cooler at 0C. 5 degrees warmer, and a slight breeze.  Also, FHMW varied from about 2.4 to 3.1.

 

M101 + SN

Gain 300, 300 secs - 10 sec subs.

[steveincolo]

GEM28, AT125EDL with 0.8 reducer, ZWO EAF, 533MM Pro camera, 780mm FL at f/6.3 and 0.98"/px image scale.

Flats, but no darks, Hot pixel removal only.  Cooler at 0C. 5 degrees warmer, and a slight breeze.  Also, FHMW varied from about 2.4 to 3.1.

 

M101 + SN

Gain 300, 300 secs - 10 sec subs.

28MayM101SN-5A12-G300ZZR80-30-10-FG.jpg

Nice mono capture of M101 to go with the SN!

[Cey42]

I have been so excited to capture the SN. On May 25, the forecast was for clear skies. I decided to spend a couple of hours viewing other objects before going to M101 so it would be darker and the moon lower. When I finally got around to slewing to it, SharpCap did not want to plate solve. I tried my usual tricks but nothing. So I go out to the scope and see it is pointing nearly horizontal not nearly vertical as expected. What the heck! Apparently I did not tighten the RA lock all the way. Quickly got the scope aligned again and slewed to M101 again. Now I am not seeing any stars. I go out to check the scope and all looks fine. Then I look up, a few clouds have now appeared and of course they are blocking M101. At this point I figured the astro gods did not want me to view M101, so I packed it in for the night. Fortunately the next night was foretasted to be clear. The next night was clear and everything worked great.

 

Celestron 8” SCT @ F/6.3 on Celestron AVX mount. Bortle 7 skies.

 

A capture of M101 from May 13, 2023 with no supernova.

ZWO 294MM. Flats & darks.

Gain 250. 12 secs/5 min.

 

 

May 26 - 46% moon

PlayerOne 533MM. Flats & Hot Pixel.

Gain 250. 6 secs/5 min.

I have seen all the images on how bright the SN is but seeing for myself is just amazing. It really does appear to be a foreground star. Hard to believe that it is 23Mly away. Just imagine if it occurred in our galaxy at 500ly like Betelgeuse.

 

 

I then switch quickly over to my OSC even though I rarely use it on galaxies.

PlayerOne 533MC. Optolong L-Extreme filter. Flats & Hot Pixel.

Gain 300. 12 secs/10 min.

 

[roelb]

Evo 8 @ F/5.3

Bortle 4 with 50 % moon

ASI533MM-Pro

23 x 15 s

As per ASTAP "Calibrate Photometry" the magnitude = 11.63