Astrobargains Store
-
- Posts: 83
- Joined: Mon Jan 15, 2007 1:54 pm
-
- Posts: 83
- Joined: Mon Jan 15, 2007 1:54 pm
-
- Posts: 83
- Joined: Mon Jan 15, 2007 1:54 pm
- 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
Hi,
Have a nice day.
Tracking Antenna?? I believe the tracking antenna don't need to track like a telescope because it got a very large field. A telescope field will be very small at high magnification (you want to see satillites??)... the usual Field of View is around 0.5 degree or less at high magnification. It is a very difficult task to keep a moving object steady in the 0.5 degree Field of View.I don't think so , coz if a tracking antenna can track satellites and they appear visible for at least 10mins when they come over our horizon.
Have a nice day.
Yang Weixing
"The universe is composed mainly of hydrogen and ignorance." 


-
- Posts: 83
- Joined: Mon Jan 15, 2007 1:54 pm
Actually the bigger the antenna , the finer the resolution it can track or resolve. If a large antenna can track a moving object , which stays in sight for abt 10mins in our horizon or communication zone , isn't that enough time to snap a photo? , worse come to worse , we can at least do Geo Stationary but that is 36000 km away so i guess it won't be great quality.
-
- Posts: 83
- Joined: Mon Jan 15, 2007 1:54 pm
- Canopus Lim
- Posts: 1144
- Joined: Fri Jun 03, 2005 12:46 pm
- Location: Macpherson
-
- Posts: 299
- Joined: Mon Feb 20, 2006 9:21 pm
Patience is a virtue, young mansimranjits wrote:That means his store is not open one ? I just want a place to go down to check out the gear. Like that i think i go science centre better.

Joo Beng is indeed one of the nicest dealers I have come across. No doubt there seems to be no physical store front, it is perhaps one way to help him keep costs down and enable us to get our astronomy toys at very good prices. The name "Astrobargains" says something about the need to stay competitive in a niche market.