25 January 2023 at 1:48 pm #615325
Just a plug to observe this comet, as it is now very conveniently placed in the sky for those in the northern hemisphere. Changes night to night.
Attachments:26 January 2023 at 7:36 am #615337
It certainly is. I measured it at mag 5.6 this morning with lots of detail visible in images.26 January 2023 at 2:29 pm #615346
Sleeker ion tail when imaged last night. The comet’s hood lends it the appearance of a speeding bullet.
Attachments:27 January 2023 at 7:07 am #615365
Gideon van Buitenen has produced a really nice simulation of the comet’s appearance which you can find here:
It shows the PA of the ion tail swinging around very rapidly over the next few days.
27 January 2023 at 7:37 am #615367James LancashireParticipant
- This reply was modified 4 days, 23 hours ago by Nick James.
Not much luck with clouds on the Kent coast but I can’t remember the last time when a *bright* comet was circumpolar (from UK). Must be unusual timing and orbital geometry. Hoping for a favourable break in weather over next few days before full moon!27 January 2023 at 9:32 am #615368Lars LindhardParticipant
I was lucky last night
Canon 77D with 250 mm . Exp. 10.sec. ISO 3200.
Attachments:28 January 2023 at 1:08 pm #615373Charles Graham TaylorParticipant
Used Slooh Canary 2 on the night of 27 Jan at 0052 to take this image. Subsequent processing with Affinity PLus.
This Comet is just visible in 10×50 binos here in eastern Scotland.
- This reply was modified 3 days, 17 hours ago by Charles Graham Taylor.
Attachments:28 January 2023 at 10:43 pm #615377
Captured this eve (midpoint) 2023-01-28T19:12. Lovely ion tail.
Attachments:29 January 2023 at 10:30 pm #615392
Development of ion tail into at least three streamers.
MIDPOINT = ‘2023-01-29T20:59:22’ /UT of midpoint of exposure
Attachments:30 January 2023 at 12:05 am #615395
David. Yes the ion tail is very active again. Your images are excellent. Your fast RASA is ideal for this.30 January 2023 at 9:37 pm #615427Paul G. AbelParticipant
Finally had some clear skies tonight and I just made this observation. Using HR3082 as a comparison star, I estimate a Mv~ 5.5
Attachments:31 January 2023 at 8:33 pm #615459Dr Paul LeylandParticipant
You guys up in the frozen north have it lucky.
I find it very frustrating that Polaris is only 28 degrees above the horizon from here. Even worse, my fork mount won’t allow pointing at anything above a Declination of 75N or the camera hits the mount. Guess where C/2022 E3 is tonight …
With luck it will be far south enough to give me a chance in a few days but, of course, the moon will then be very near full.
Life, don’t talk to me about life.
P.S. now the ****ing filter wheel has just packed up and I must go back to the dome to see what needs to be kicked into submission. Almost always a Windoze/USB failure.31 January 2023 at 10:41 pm #615466
Paul – That is why I have never liked fork mounts although the price I pay is meridian flips. The comet was really nice tonight despite the bright moonlight. I get it to be 5th mag now. Here is a picture of my telescope effortlessly pointing near to the pole taken while it was taking the picture in the inset. I don’t get many chances to take a picture like this!
Attachments:31 January 2023 at 11:38 pm #615471Dr Paul LeylandParticipant
Yes, we win some and we lose some. I don’t actually lose very much useful sky as Dec +75 reaches a maximum altitude of 43 degrees and a minimum of 13 degrees from here and I don’t much like doing photometry below 30 degrees altitude unless it is really necessary. I have always really loathed meridian flips.
HL CMa was nice and high in the sky here (just to make you jealous 🙂 — there are advantages to having a low celestial pole — until cloud stopped play. 1 made it V=12.33 tonight.31 January 2023 at 11:42 pm #615472Denis BuczynskiParticipant
In my experience I would have fork mount any day over a GEM. The problem with cameras and ancillary equipment fouling the mount in the fork design is not a problem for Newtonian or Nasmyth designs or indeed prime focus SC’s like the Celestron RASA . Meridian flips in a GEM are amongst the most common irritations I have with my SC on a GEM. Image attached of my last large Newtonian, oh how I miss it!
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