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I suggest this is C/1956 R1 (Arend-Roland) at approx 1957/05/20 01:00 UT. Sky Safari places the comet at that time 07 04 55 +63 26 46 J2000.
Peter, I’ve had a look in Sky Safari and you are right.
P2, the brightest star in the frame is Segin, epsilon Cas
P3, ” ” gamma Cas
P4, ” ” gamma Cas
Nicely placed comets!
Thanks for the info. I read about the project with great interest. On my Twitter account (astro only, no craziness) I’m always retweeting the LSST news feeds to excite my followers about the project.
No doubt the data scientists at the LSST who are developing methods for transient discovery and monitoring are all over this issue.
Good point, Grant.
On the other thing – I’m sure he’s learned his lesson, notwithstanding the outcome of the case.
I don’t know about the credentials of this news source. But it looks like SpaceX may be testing ways of reducing the reflectivity of the Starlink satellites.
https://spacenews.com/spacex-working-on-fix-for-starlink-satellites-so-they-dont-disrupt-astronomy/
Going east from Anaxagoras I think you may be looking at craterlets in Goldschmidt – and then on to Barrow. Perhaps the northmost dark feature is Scoresby. There is indeed a ray between Barrow and Scoresby.
Very well deserved Merlin medal. (I missed the early bit of the YouTube stream, but have caught up with all of it now.)
Taken through a luminance filter only, with zeropoint from UCAC4 R mags, the SN comes out around R = 14.4
The timestamp is slightly wrong. I leave Astrometrica to take the start of exposures from individual FITS for track and stack (which is correct). It won’t automatically read the midpoint value put in the header by Maxim when I do a prior stack in that software. Of course I could input the midpoint manually into Astrometrica using the image parameters menu…
It is all very mysterious, Andrew. If I look at the thread on my laptop, Robin’s image is there to see (there’s a green circle around the transient, and red circles around photometric comparison stars). There is an empty box where the image should be when I look on my ipad, and no box at all when I look on my phone! And I initially thought your comment was a bit passive aggressive. I do apologise for my uncharitable – and fortunately private – reaction.
Congrats. It is at a nice northerly declination, so convenient for us. The transient is located near the Cyg-Cep-Dra intersection, which is halfway up the zenith for me at 2100 at this time of year. I’ll try to capture an image tomorrow.
Thanks Bill. Saw a nice meteor – probably sporadic – last night while setting up the scope late evening. Came from northern part of UMa.
