Mars tonite (13 April 2014)

行星、深空天體、星野攝影等
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Chanlunlun
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註冊時間: 週四 09 10月, 2003 21:06

Mars tonite (13 April 2014)

文章 Chanlunlun » 週日 13 4月, 2014 10:51

Although the transparency was extremely poor but by midnight a brief moment of good stability existed. I grasped this chance a shot down theface of Mars during its opposition period. At an apparent diameter of about 15 arcsec, Mars is not longer a small planet.

Telescope :- Celestron C-11 at f/25
Mount :- CPC1100+DIY equatorial wedge, reconstructed for full robotic maneuvering.
Barlow lens :- TeleVue 2.5X Powermate

Camera :- DBK21AU618 + ZWO IR Block filter
Capturing software :- SharpCap.
Stacking software :- Registax 5.0

Resolution=640x480
Frame Rate (fps)=30.00
Colour Space / Compression=YUY2
Exposure= 1/64 sec for 5000 frames.

Brightness=31
Hue=189
Saturation=157
Gamma=106
Gain=876

South is up, East at right.

Image display size = 100% original, no cropping.
Site :- QC robotic observatory, Causeway Bay.

Sky stability :- 6/10 (good)
Sky transparency :- 2/10 (very poor)
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