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This argument is analogous to that been grammar descriptivists and prescriptivists. Oliver Kamm did, for some years, lay into the latter in his characteristically trenchant style in the Pedant column of The Times. IMHO, the community overwhelming thinks that 2020 is the first year of the new decade, and therefore it is the first year of the new decade. We are not talking about constants of the universe here. Nonetheless, I am willing to tolerate pedants who think otherwise. This isn’t Twitter 😉
It was unexpectedly clear for a period this evening. I caught the comet with a 200mm lens: 50 x 10s. 2020/01/21 21:40.
Yes, great to hear you got a good view Andrew. I imagine the high altitude of T2 is really helping evening visual observers.
Very nice, Robin. I was disappointed not to pick up the green outer coma with my OSC cam and Hyperstar last time, particularly with the comet being so nicely placed at the moment. But it is clear in your spectrum.
The National Science Foundation has announced the LSST is now named the Vera C. Rubin Observatory.
I thought that they covered the item reasonably well too. Hopefully everyone will be gazing south later this evening, peering through the firework smoke to look at Orion’s right shoulder…
It just doesn’t jump out of my skies. Whilst eta Ori is visible, it is so much less prominent than the belt stars that the arrow pattern does not emerge naturally in my mind. I think that Betelgeuse, Bellatrix and Rigel also frame the middle stars to be perceived as a belt.
Thanks David. The clouds are forecast to part this evening…. If they do, I will look for the arrow asterism. I have never thought this myself or even been told about it prior to your post.
Following on from Paul. Defo Bennett. Print 6, morning of 11 Apr 1970; print 7, morning of 10 Apr 1970. I may be wrong, but the bright star to the right of the comet in print 6 may be omicron And, with 2 And even further to the right.
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.
