It is currently Thu Oct 18, 2018 9:15 am

All times are UTC

Post new topic Reply to topic  [ 1 post ] 
Author Message
 Post subject: Comet 2013 UQ4 (Catalina)
PostPosted: Sat Jul 26, 2014 8:05 am 
User avatar

Joined: Mon Oct 12, 2009 6:47 pm
Posts: 1263
Location: Bolton
Last night I managed to bag another comet: 2013 UQ4. This one was discovered last year by the Catalina Sky Survey and was originally designated as an asteroid, until a diffuse coma developed around it as it approached the Sun:

Last night it was in Bootes, high enough up in the West that I could see it above the houses. I had a go at imaging: it was so faint that I couldn't see any trace of it on my 1-min exposures, but I captured an hour's worth of data before it "set" behind next door's roof.

This morning I processed my images, and could just make out a faint streak on my integrated 51-min exposure. I've now re-processed this to stack the comet:
File comment: Comet 2013 UQ4 in Bootes on 25-Jul. 51x 60-sec using MX516 on StarWave 80ED at f/4.6.
catalina_25jul.jpg [ 100.21 KiB | Viewed 3002 times ]
As a guide to how faint it is, the nearby ""bright" stars are 11th - 12th magnitude! It's certainly the faintest comet I've managed to catch from my back-garden.
The sky was not particularly dark due to residual twilight and street-lights, but ironically just as I was packing away at midnight, the two nearest street-lights mysteriously went out!

Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC

Who is online

Users browsing this forum: No registered users and 1 guest

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group