M4 Globular Cluster

Post by **weixing** » Mon Apr 20, 2009 12:14 am

Hi,
Took this on Saturday morning after my usual visual observation on Friday night. I was planing to shoot using the Vixen Coma Corrector2 with the wide photo adapter that I just brought, but the image look like a bit blur and out of focus. I thought the vixen coma corrector 2 got some problem, but when I switch to MPCC, the image was only slightly better contrast. After a few shot, I realized that the sky got a thin layer of high clouds (confirmed by the Moon light later on).

Below is the M4 image I took on last 18 Apr 2009 01:39hr SGT:

Shooting Info
Telescope: Vixen R200SS 800mm F4.0 + MPCC
Camera: Canon 450D
Location: Tampines
Image: 70 images x 1 minute exposure @ ISO400

Anyway, I hope the coma corrector 2 will perform well as I like the wide photo adapter very much... if only I can find an adapter to connect my MPCC on it...

Have a nice day.

Post by **rcj** » Mon Apr 20, 2009 7:40 am

like the colours on this one, Weixing. Weather must have been quite good in Singapore lately from the recent satellite image....

Post by **Airconvent** » Tue Apr 21, 2009 1:02 am

nice one weixing...
I noticed there are 2 lines in the image...are they part of the cluster?

haimi · Post by **haimi** » Tue Apr 21, 2009 8:34 am

Good Shot! Ive yet to learn these kung fu from you ;)

Post by **weixing** » Tue Apr 21, 2009 9:10 am

Hi,
Thanks for all the comments.

Airconvent wrote:nice one weixing...
I noticed there are 2 lines in the image...are they part of the cluster?

2 lines?? Where?? Or you mean those dotted lines?? If yes, those are stars of the cluster.

Below is the whole frame version showing the star field around M4 and a star chart showing the framing:

Have a nice day.

wintertriangle22 · Post by **wintertriangle22** » Tue Apr 21, 2009 1:19 pm

Nice picture, M4 is easy to locate because it is next to Antares but not as prominent as Omega Centauri
I can make out Omega Centauri using binoculars not M4
Suppose you need a really dark location to observe M4

zackae · Post by **zackae** » Wed Apr 22, 2009 10:29 pm

Sorry I didn't come down on Friday Wei Xing, had training on Saturday so I had to turn in early. Will join you for other sessions soon. Don't stop smsing!

Btw, Nice image!

Post by **weixing** » Fri Apr 24, 2009 11:18 am

Hi,

zackae wrote:Sorry I didn't come down on Friday Wei Xing, had training on Saturday so I had to turn in early. Will join you for other sessions soon. Don't stop smsing!

Btw, Nice image!

The sms list is getting a bit long now... :p I think I'll revert back to posting on forum next time.

Have a nice day.