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View Full Version here: : A late C/2023 A3 Atlas from Oct 4th


Retrograde
05-10-2024, 12:30 PM
Yesterday morning I managed to finally capture C/2023 A3 (Tsuchinshan-ATLAS) in the brightening pre-dawn sky.

Earlier in the week I travelled up to the Sunshine Coast to visit family . With the weather forecast looking good for Friday morning, I had an opportunity to get to a good location overlooking the ocean facing east at Point Cartwright. As I was heading out at 4am I found the road completely blocked with night roadworks and I was diverted onto a road I was completely unfamiliar with! After a couple of U-turns & double-backs I realised I just had to continue and eventually worked out the new circular route that would get me to my desired location, albeit with a 15min delay.

There was still a line of low cloud on the horizon & I couldn't immediately spot the comet in the direction I was expecting (I don't 't have binos with me) but suddenly spotted it rather easily naked-eye a bit north of & higher than where I expected. It would've been better to catch it earlier when the sky was darker but I had to take what I could get.
This image is a 2 sec exposure with a Pentax K-5 at 800 ISO through a Samyang 135mm lens at f2. Despite the far from dark sky, the comet stood out fairly well so It must be quite bright.

Thanks for looking,
Pete.

astronobob
05-10-2024, 10:14 PM
Thats a cracker Pete, cool story too, I believe council have set up night works on more than one occasion with us astronomers,,
The Comets tail looks to have widened recently,, good shootin man

OzEclipse
06-10-2024, 11:28 AM
Great image Pete. Yes comet is quite bright, stands out against the morning twilight sky.

Joe

Retrograde
06-10-2024, 03:47 PM
Thanks Bob!




Thanks Joe. :)