Search found 2990 matches
- Wed Apr 28, 2004 1:34 pm
- Forum: Astrophotography
- Topic: C/2002T7 Comet Linear Image Mosaic (270404)
- Replies: 2
- Views: 2322
Hi Richard, The tail stub can be seen barely through the 4-inch refractor but is expected to brighten up as days goes by. Nevertheless, whatever the case, it is certainly a hot imaging item. The core is estimated to be non-stellar-like and diffuse, about 10 arc-minutes across, probably around the sa...
- Wed Apr 28, 2004 1:32 pm
- Forum: Astronomy Events & Observation Sessions
- Topic: Venus Transit (Normal)
- Replies: 9
- Views: 5118
The cresent is due to the phases that Venus experiences as it traverses the orbit around the Sun resulting in the effect of different amounts of illuminance on the planet as seen from Earth. On the other hand, the transit of Venus occurs when the planet goes in front of the sun as seen from Earth. T...
- Wed Apr 28, 2004 1:30 pm
- Forum: Equipment Discussions
- Topic: My Portable C8 setup
- Replies: 11
- Views: 5468
- Tue Apr 27, 2004 2:47 pm
- Forum: Astrophotography
- Topic: C/2002T7 Comet Linear Image Mosaic (270404)
- Replies: 2
- Views: 2322
C/2002T7 Comet Linear Image Mosaic (270404)
Hi all, Here is another attempt at Comet Linear, this time round, a 3-piece mosaic was tried on the "dusty-snow-ball" Exposures had been increased to 180seconds since there was almost no presence of thin cloud cover towards the eastern horizon. Observation of the comet started at 5:26AM an...
- Mon Apr 26, 2004 2:36 pm
- Forum: Astronomy Events & Observation Sessions
- Topic: Wow ! really clear skies tonight ! ( sun apr 25 )
- Replies: 9
- Views: 5630
- Mon Apr 26, 2004 2:33 pm
- Forum: Astrophotography
- Topic: C/2002T7 Comet Linear taken today (260404)
- Replies: 2
- Views: 2412
C/2002T7 Comet Linear taken today (260404)
Hi SINGASTRO, Here is a picture of the morning comet taken today at 6:05AM using a 4-inch refractor (820mm f.l.) together with a CCD camera. Stacked image comprises of the following exposure: 1) 1X40 seconds 2) 1X70 seconds 3) 1X80 seconds 4) 1X90 seconds The comet is currently "below" 19 ...
- Sun Apr 25, 2004 1:45 pm
- Forum: Astronomy Events & Observation Sessions
- Topic: Venus Transit (Normal)
- Replies: 9
- Views: 5118
- Sun Apr 25, 2004 12:31 pm
- Forum: General Astronomy
- Topic: comet Ephemeris
- Replies: 3
- Views: 3641
- Sun Apr 25, 2004 12:50 am
- Forum: Astronomy Events & Observation Sessions
- Topic: Lunar Eclipse - 4th May
- Replies: 8
- Views: 4983
Hi acroamatic, The total lunar eclipse will occur after midnight on May 5th with the following Singapore local times: Penumbral Eclipse Begins: 1:50:53AM Partial Eclipse Begins: 2:48:20AM Total Eclipse Begins: 3:52:07AM Greatest Eclipse: 4:30:16AM Total Eclipse Ends: 5:08:27AM Partial Eclipse Ends: ...
- Sat Apr 24, 2004 11:44 pm
- Forum: General Astronomy
- Topic: comet Ephemeris
- Replies: 3
- Views: 3641
Are you incidently referring to something like this: http://cfa-www.harvard.edu/iau/Ephemerides/Comets/2002T7.html which is the ephemeris for T7? It is pretty straight forward as you just need to refer to the date of observation, take note of the RA and DEC coordinates. Ignore the magnitude estimate...