Hi leslie
I can help out on 27 Feb 04. Pls see the pm i send you.
Search found 2389 matches
- Fri Jan 30, 2004 1:42 pm
- Forum: Astronomy Events & Observation Sessions
- Topic: Anyone interested to have an event in Temasek Polytechnic
- Replies: 77
- Views: 39057
- Thu Jan 29, 2004 7:37 pm
- Forum: Vendors corner
- Topic: (Updated) Eyepiece storage bottles. Now taking orders.
- Replies: 7
- Views: 5318
- Mon Jan 26, 2004 4:44 pm
- Forum: Singastro.org Announcements & News
- Topic: Mars Exploration second rover, Opportunity ready for landing
- Replies: 15
- Views: 13406
Hi everyone Those interested in the current Mars landings may want to take note: I saw in today's Straits Times that there is a Mars exhibition at Suntec City Mall - Tropics Atrium from 27th Jan to 1st Feb. Some multimedia visuals and a model of Spirit / Opportunity will be on display. Admission is ...
- Tue Jan 20, 2004 8:21 pm
- Forum: General Astronomy
- Topic: Good Astronomy Book For Newbie
- Replies: 17
- Views: 9454
- Sun Jan 18, 2004 3:08 pm
- Forum: General Astronomy
- Topic: what is the differences??
- Replies: 28
- Views: 13845
- Sat Jan 17, 2004 3:05 pm
- Forum: General Astronomy
- Topic: Good Astronomy Book For Newbie
- Replies: 17
- Views: 9454
- Sat Jan 17, 2004 2:14 pm
- Forum: General Astronomy
- Topic: what is the differences??
- Replies: 28
- Views: 13845
Oops again!! I didn't realised the 'magnitude' of this problem when I submitted my very first post above in singastro!! I quickly went to check several sources in my library and I found out that you guys are right; it should be based on 1 AU or the Earth's radius. In fact, several books did not defi...
- Fri Jan 16, 2004 1:57 pm
- Forum: General Astronomy
- Topic: what is the differences??
- Replies: 28
- Views: 13845
oops...I should have explained in my earlier post... One parsec is defined as the distance of a star (nearby) which has a PARallax (apparent shift in position against the background stars) of one arc SECond (hence PARSEC) when viewed from the Earth six months apart (ie, from the two extreme opposite...
- Wed Jan 14, 2004 7:20 pm
- Forum: General Astronomy
- Topic: what is the differences??
- Replies: 28
- Views: 13845
When an amateur astronomer says 'magnitude', the person usually refers to 'apparent magnitude', which is a measure of the relative brightness of the stars or other celestial objects as seen from the earth. It is called 'apparrent' because, for example, star A may be actually (intrinsically) brighter...