Christopher Kyba · @skyglowberlin
488 followers · 825 posts · Server vis.social

Check out this new paper, "Photometry of Type II SN with a Worldwide Network" iopscience.iop.org/article/10.

I was a co-author, so I guess I can no longer claim that "I'm not an astronomer"... 😀

#citizenscience #2023ixf #supernova

Last updated 2 years ago

Dr. John Barentine FRAS · @JohnBarentine
941 followers · 655 posts · Server astrodon.social

The AAVSO light curve of to date shows the fireball continuing to redden (i.e., it's getting fainter at blue wavelengths more quickly than in the red). There's still some subtype uncertainty; how this proceeds will determine if it's a IIP or a IIL.

#supernova #2023ixf #astronomy

Last updated 2 years ago

Ernie Jacobs · @Astro716
43 followers · 30 posts · Server astrodon.social
Dr. John Barentine FRAS · @JohnBarentine
906 followers · 592 posts · Server astrodon.social

A gorgeous new image of Messier 101 (aka the 'Pinwheel ') taken with the Gemini North 8-meter telescope was released today by to mark completion of the repair and refurbishment of its primary mirror.

The bright blue star at left with the rays coming off it is supernova , a massive star at the end of life that blew itself up last month. It's still visible in small telescopes.

More info: noirlab.edu/public/images/noir

#galaxy #noirlab #2023ixf

Last updated 2 years ago

Dr. John Barentine FRAS · @JohnBarentine
884 followers · 567 posts · Server astrodon.social

Astronomers Telegram #16050: likely progenitor of SN found in archival HST data; "we obtain an approximate absolute magnitude (no extinction correction) of -4.66, which is in line with a supergiant progenitor."

astronomerstelegram.org/?read=

#2023ixf #astronomy

Last updated 2 years ago

Rob Agar🐀 · @SaveTheOkapi
89 followers · 642 posts · Server mas.to

Tracked down in M101 (the Pinwheel galaxy, just off the great bear’s tail)

A bright pinprick, about mag 12 - not bad for something 21 million light years away🤩

#2023ixf #supernova

Last updated 2 years ago

Dr. John Barentine FRAS · @JohnBarentine
884 followers · 559 posts · Server astrodon.social

My friend Scott Tucker, of Starizona here in Tucson, made the front page of spaceweather.com today with his excellent image of M101 and SN . The image was taken on Saturday, 20th May, when the brightness of the supernova was still rapidly rising.

#2023ixf

Last updated 2 years ago

Dr. John Barentine FRAS · @JohnBarentine
883 followers · 557 posts · Server astrodon.social

Observed SN tonight for the second night in a row. Last night I had it visually at magnitude +12.2; tonight it is considerably brighter at an estimated +11.1.

#2023ixf

Last updated 2 years ago

Dr. John Barentine FRAS · @JohnBarentine
883 followers · 556 posts · Server astrodon.social

AAVSO finder chart for the field of in , plotted with a 1º field of view and a limiting magnitude of 14. Comparison star magnitudes are shown without decimal points, so, e.g., "119" = magnitude +11.9.

#supernova #2023ixf #m101 #astronomy

Last updated 2 years ago