M7 Ptolemy's Cluster

CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
Post Reply
User avatar
weixing
Super Moderator
Posts: 4708
Joined: Wed Oct 01, 2003 12:22 am
Favourite scope: Vixen R200SS & Celestron 6" F5 Achro Refractor
Location: (Tampines) Earth of Solar System in Orion Arm of Milky Way Galaxy in Local Group Galaxies Cluster

M7 Ptolemy's Cluster

Post by weixing »

Hi,
This M7 (in the middle of the image) image was taken during the observation session on National Day eve... actually it's on National Day itself. :P The image was taken using Sigma 70-300mm F4-F5.6 APO DG lens piggyback on my Celestron 8" F5 Newtonian. M7 was in the light pollution and the thin layer of high cloud make the light pollution worst, but we just "shoot first, process later" :mrgreen: :mrgreen: The exposure was limited to only 1 minute at ISO 800, because the light pollution cause the image to overexpose if any longer.

Anyway, the result wasn't that good, but the Milky Way was surprisingly obvious and bright even under this type of condition. Also, the size of M7 was too small at 200mm focal length, so I think I'll try again next time using my Vixen 80mm Achromatic Refractor (400mm focal length). Hope that I can get a larger and better M7 image.

Below is the image and shooting information:
Image
Object: M7 - Ptolemy's Cluster (09 Aug 2007 00:53Hr SGT)
Camera: Canon 300D with Sigma 70-300mm F4-F5.6 APO DG @ 200mm F8.0
Location: Tampines, Singapore
Image: 23 x 1 minute Images @ ISO800

Have a nice day.
Last edited by weixing on Sat Aug 11, 2007 1:05 pm, edited 2 times in total.
Yang Weixing
:mrgreen: "The universe is composed mainly of hydrogen and ignorance." :mrgreen:
Top
User avatar
amin7074
Posts: 164
Joined: Tue May 02, 2006 4:57 pm

Post by amin7074 »

:shock: :shock: ....milky way captured in urban sky... :) :) surprising..you try again bro i think it's gonna be nice if the weather permit you during imaging......by the way I saw the multiple radiant point of the August meteor shower yesterday after the NDP is over (THE FIREWORKS).kekekeke.... :lol: :lol: :lol: .
Top
Post Reply

Return to “Astrophotography”