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Monsoon Lightning, Venus, Cloud Shortened Session

Posted: 4 July 2015

There was a brief monsoon storm at Cassiopeia Observatory early Friday morning, 3 July 2015. One of my webcams captured some lightning to the north:


The storm only dropped 0.06" of rain here. The sky became partly cloudy in the late afternoon and as sunset approached I decided to open the observatory.

Open: Friday, 3 July 2015, 1900 MST
Temperature: 93°F
Session: 844
Conditions: Partly cloudy

1907 MST: after powering on the 8" LX200-ACF I viewed Venus then Jupiter at 83X. Their separation was now too wide to fit in the same field-of-view.

Slewed back to Venus to image it before the clouds reached it. Mounted the D7200 DSLR for eyepiece projection 222X. This is a stack of 939 frames from a 15 second HD video recording, 1.3X crop factor, 60 frames/second, 1/60sec, ISO 400:


1918 MST: clouds were now in most of the sky. Ended Venus imaging.

1931 MST: viewed Saturn, 83X, through thin clouds.

Sunset was obscured by clouds, but the sky was rather pretty, as seen in these photos:

View from observatory to southeast

View from observatory to east

View from observatory to west

1943 MST: powered off the telescope due to the clouds.

1950 MST: Jupiter was now faintly visible to the naked eye through the clouds.

Close: Friday, 3 July 2015, 2000 MST
Temperature: 84°F
Session Length: 1h 00m
Conditions: Mostly cloudy

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