42 replies to this topic

[jkmonroe]

Type II went boom in M101, the closest in decades according to what I am reading.

 

 

https://twitter.com/...741993424285696

 

https://www.wis-tns..../discovery-cert

 

 

 

 

 

[BQ Octantis]

SN 2023ixf:

 

https://www.rocheste.../sn2023ixf.html

 

I don't know about decades…SN2014J was in M82 and a binoculars object. It was the closest in decades.

 

BQ

Edited by BQ Octantis, 20 May 2023 - 11:43 AM.

[kgb]

Thanks. Said he discovered it with a 14" at f/11 and a KAF sensor. That is awesome! I am trying to research his discovery process, but have come up empty. Anyone have any insight into Koichi Itagaki and how he made this discovery?

[alphatripleplus]

I just checked my capture of M101 from 5/14  - no sign of the supernova on that date. I was able to match the other stars in the field with the post-discovery images on the web.

[lniles]

SN 2023ixf:

 

https://www.rocheste.../sn2023ixf.html

 

I don't know about decades…SN2014J was in M82 and a binoculars object. It was the closest in decades.

 

BQ

The exact phrase in the Twitter thread is "closest supernova in a decade" which is pretty accurate.  

[BQ Octantis]

The exact phrase in the Twitter thread is "closest supernova in a decade" which is pretty accurate.  

To split hairs with the Twitterverse, SN 2014J was half the distance (12 mly vs. 21 mly) in January 2024 (less than a decade ago).

 

So maybe the closest in almost a decade?

 

BQ

"Words mean things."

[DarrylS]

Supposed to be clear skies tomorrow  .  I’m super excited to try to catch this.

[jkmonroe]

Let's try this again.

 

ZS73, 533MM, 360g, no filters.  Crappy seeing and noisy image, but the SN is pretty bright.

 

SN2023ixf - 27 x 30s for a total of 810 seconds.

 

Edited by jkmonroe, 20 May 2023 - 10:38 PM.

[OregonSky]

Could not resist.

The Sky opened up for a bit Last night just after midnight so I ran out with the Celestron 6se - .63 Reducer  -  Player One Uranus C Camera.  

 

 

M101   -   77 X 8 sec 348 gain May -20-23   -  Supernova clearly visible

 

 

 

M101 - 105 X 8 sec 348 Gain  -   From  March-15-23  --   No Sign of a Supernova

 

 

 

Both Images were cropped to remove evidence of the inevitable frame rotation since at 44th parallel 101 is pretty straight up and my mount is Alt Az.

Edited by OregonSky, 21 May 2023 - 01:21 AM.

[psybiggs]

I inadvertently captured the Supernova in M101 Thursday night (2023-05-19 at 01:35 EDT around 05:30 UTC). I was doing EAA because the seeing and transparency were too poor to do any lengthy AstroPhoto runs.  Instead I was doing 10 minute live stacks of familiar objects just for fun including M101.  This image is a stack of 2 five minute subs taken with an ASI533MC Pro and an AT102ED Refractor working at fl:568mm because of the 0.8x Flatenner Reducer.  What a fantastic chance shot, apparently some hours prior to the discovery.

 

​SN 2023ixf in M101 - 2 x 300sec exp. for total of 10 minutes

Edited by psybiggs, 21 May 2023 - 11:03 PM.

[alphatripleplus]

Moderator Note:

 

Everyone please remember that the EAA Forum Rules require a caption with both the target name/identification and total exposure info for every image posted. Thanks.

[gun4hire]

I believe I caught it (supernova in m101)...or not?

 

cropped M101 arm with supernova----80 frames 1200seconds

 

Edited by gun4hire, 21 May 2023 - 01:29 PM.

[DarrylS]

I believe I caught it (supernova in m101)...or not?

 

cropped M101 arm with supernova----80 frames 1200seconds

 

Looks like it — congrats 

[Larry Mc]

Thanks to a 'heads-up' from Kiski Astronomer John L, on Saturday evening a number of us at the ORAS Observatory were able to image/EAA observe the newly discovered Type II supernova in M101 - "The Pinwheel Galaxy" located in Ursa Major.
Using my 8" SCT @ f6.3 and my ZWO ASI294MC camera & L-Pro filter, the supernova was easily observable, even in the very first subframe livestacked via Sharpcap.
Here's the EAA observation of the galaxy and supernova: (widefield and cropped/zoomed)

   

(5 minute subframes, livestacked for 1 hour).

 

Here's a comparison pre-supernova observation of M101 taken a month ago (4/19) from Calhoun:

   

(same telescope/camera info as above, also 5 minute subframes, livestacked for 1 hour).

 

M101 is well placed, nearly overhead in the evening sky just off the handle of the Big Dipper.

[DarrylS]

Caught it tonight!

 

M101, 30 second shots, total integration time of 50 minutes.

 

The supernova is obvious. Frankly, it was clear within 5 mins. Super easy and super cool!

[steveincolo]

Holy cow this SN is bright.  Even in not full dark and smoky skies, it was obvious immediately.  AT130EDT at 728 mm;  0.8x FF/FR; ZWO LRGBSHO filters in ZWO EFW; ASI533MM at 5 C, 100 gain.  Stacked in Jocular.  36 x 30 sec LRGB subs.

 

M101, SN 2023ixf.  Zoomed view.

 

M101, SN 2023ixf.  Full field view (same subs, 36 x 30 sec).

 

Note the intense blue color.  The same was true for the one last year (too lazy right now to look it up) in its early days.

 

Edited by steveincolo, 21 May 2023 - 11:06 PM.

[Meies]

M101, Fra500, ASI678MC, 94 x 30"

 

Two days after it was first reported, the supernova is now one of the brightest stars in the galaxy.

[steveincolo]

Here’s my post with an EAA view of SN 2022hrs in NGC 4647.  You can see the intense blue there, too, which sparked a discussion started by Martin Meredith’s post.  SN 2022hrs was a Type Ia, though. 

[herseycart]

Got a few minutes to EAA observe M101 and SN2023ixf last night.   

 

Scope: Celestron C8 SCT with F/6.3 focal reducer.

Camera: ZO ASI 294MC Pro

Guided

 

This is a live stack of 60 x 30 second exposures, 121 gain, 30 offset, bin 2x2.  

The supernova is very bright and was visible from the very first frame.

My focus was terrible but still neat to observe.

 

 

More info: http://www.suffolksk...23ixf-in-m101/ 

[mjritchie]

This is a side by side I did in paint. Both images are through my C5 taken with a Uranus-C camera.

Both are approximately 5 sec exposures stacked for 15 minutes. I cropped and rotated the galaxies to match their orientations. Left side taken last night 5/22/23, right side taken 9/30/22. Supernova is plainly visible at the 12 o'clock position.

 

 

Edited by mjritchie, 23 May 2023 - 09:19 AM.

[Stargazingawe]

https://www.cloudyni...for-sn-in-m101/

Capturing the evolution through the eyes of the eVscope2, no post processing.

Attached Thumbnails

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[artik]

I yesterday captured myself Bortle 8, AZ GTi (alt-az), Achromat 60/400 SVBony s501p, ASI224MC, IR/UV cut, 5s, gain 300, ~30-40 frames - 3-5min total (don't recall exactly), with darks/flats,

 

What strikes me - the huge difference between brightness of entire galaxy and a single star.

 

You don't see it on highly modified images but during live stack, the difference is striking

 

Live Stack version

 

 

edit - removed post-processed due to forum rules.

Edited by artik, 24 May 2023 - 04:40 AM.

[iceguy]

A little late, but the sky finally cleared and the wind paused just enough to get in pic of the supernova last night.

Attached Thumbnails

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[TheWhistler]

To split hairs with the Twitterverse, SN 2014J was half the distance (12 mly vs. 21 mly) in January 2024 (less than a decade ago).

So maybe the closest in almost a decade?

BQ
"Words mean things."

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

[Daniel]

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.