冬至的CaK太陽

[kingyo]

2013-12-22 HKT 13:20
Telescope: Coronado PST CaK
Mount: Skywatcher AZ mount
Camera: DMK41AU02.AS
Frame : 15 fps. x 5 sec ~ stacked 75 frames.
Total exposure: (1/900) x 75 frames = 0.0833 sec
Gain: 900
Gamma: 70

[Wah!!]

5 sec. exposure?! Why does it require so long to expose?

[kingyo]

Oh wrong info.
thx for pointing it out.
frame : 15 fps. x 5 sec ~ stacked 75 frames.
total exposure: (1/900) x 75 frames = 0.0833 sec
gain: 900
gamma: 70

金魚

[Wah!!]

Suggest you may stack more frames to reduce the noise next time

[kingyo]

Thanks for your suggestion. This is also my thought.

Coz the skywatcher AZ mount doesn't track so well, the sun is moving fast. Therefore I only grab 5 sec out of a 20 sec video clip. If I can track the sun for a bit longer, I can sure stack for more.

KamYu

[noodle]