Tuesday, August 19, 2008

20080819 Double Shadow Transit

I missed that, I arrived home so late that it's then only a single shadow transit... What a pity.

Telescope: Tele Vue Ranger
Barlows: Tele Vue 3x
Camera: DBK 21AF04.AS

For some strange reason, I saw a pale red patch of light on the screen. I remember last time when I was using my Celestron C5, I saw a similar ghost patch. Was that due to poor seeing? Or internal reflection of some sorts? It's even more strange for it appeared in both my Ranger and my C5... I shall investigate further.

The DBK has a hard time to get correct color balance, especially with the chromatic aberration of the Ranger, I've to adjust it after processing.

2252 (GMT+8):-

No comments: