Recently Browsing 0 members
No registered users viewing this page.
Sharing with you my quickie exposure... The Trifid nebula, aka M20 or NGC 6514, a popular and bright nebula about 4300 light years away in the constellation Sagittarius.
I had no plans for another object after imaging the "War and Peace" nebula and I didn't want to waste a clear night, so I pointed the scope at M20 and started exposing.
This image was taken through my Celestron 8" SCT on the CGEM at f6.3 using a cooled and astro-modded DSLR.
RGB subs: 6x60s, 5x120s, 5x180s, 5x240s, 4x300s
HII subs: 10x600s
OIII subs: 9x600s
Total Time: 04hr 21min.
Most of this image is natural color because I only used 10% of the HII and OIII stack to emphesize the detail in the red and blue hues.
Back in March I was granted an observatory code ( Q69 ) by the Minor Planet Center ( MPC ) and since then I have been spending all my available telescope time ( which due the weather has admittedly not been very much ) to capturing images of asteroids, that the MPC is interested in recieving data for, and sending in the positions that I have determined.
Mostly I have been focused on asteroids that have not been observed/reported on during their current return to visibility.
2014 LA21 was my first after getting my code ...
Here I was the first to report astrometry for 2014 LA21 since 2016 - not like discovering a new comet I imagine but still, a small achievement and a nice feeling
You may have noticed that I don't as yet supply any brightness data; this is because I have not figured out how I can do this reliably ( most of the asteroids I am chasing are very dim and so my 4 minute exposures tend to spread them a little making them hard to compare to nearby stars ).
I have been getting reasonably good position data though, with a "variation to average path" across the samples of sub 1 arcsec ( typically less than 0.5 and sometimes down as low 0.15 )
Anyway, I was just thought I would let people know what I have been up to and why you have not seem me latley over on deep sky imaging forum and also, I was wondering if there is anyone else here on Stargazerslounge doing the same thing ...
By Guy Wells
On March 31, 2018 issue of the Minor Planet Circular, the asteroid previously known as 2001 HQ16 was named.
(72834) Guywells is a Main belt asteroid with a diameter of 3-6 km. It last came to opposition in February 2018 when it reached 18th magnitude. Now it is moving through the constellation Cancer, observable at mag +19.5.
(72834) Guywells was discovered by L Ball, in 2001.
A GIF animation of 322 x3 second frames showing NEO 3200 Pheathon during its close approach in December last year. It's taken me a while to get around to putting this together...
Frames were taken during the early evening of December 14th 2017 between 18.11.06 UT and 19.44.57 UT as the object crossed the Perseus/ Andromeda border. The field is just under a degree wide. What I think is a sporadic meteor crosses the field about a second in. I could not find a satellite ID for that time and region, nor do I think it is a Geminind as it seem to come from the wrong radiant.
Any comments or observations welcome.