Just before I went out to the observatory a visitor came by:

Open: Thursday, 15 August 2019, 1858 MST Temperature: 103°F

Session: 1374 Conditions: Partly cloudy

Equipment Used:
12" f/8 LX600 w/StarLock
2" 24mm UWA eyepiece

Camera:
iPhone 8 Plus

Clouds were in the southern and southwestern sky and were moving very slowly eastward. There were also clouds along the northern horizon. I decided I would delay powering on the telescope while monitoring the clouds.

1911 MST: sunset.

Took this photo of the observatory and clouds to the southwest:

1924 MST: clouds were now in most of the sky but there was some clearing low in the western sky. Jupiter was visible in a small hole in the clouds in the southern sky. LX600 ON, StarLock OFF, High Precision OFF.

Viewed Jupiter, 102X. The four Galilean Moons were visible. Took this handheld iPhone 8 Plus afocal 102X image with NightCap Camera (ISO 400, 1/90sec) of Jupiter (overexposed) and the moons:

1928 MST: Jupiter was obscured by the clouds.

1930 MST: Saturn just disappeared behind the clouds.

1934 MST: the clouds were increasing and moving too slowly. I decided to give up for the night.

1937 MST: LX600 OFF.

Close: Thursday, 15 August 2019, 1946 MST Temperature: 93°F

Session Length: 0h 48m Conditions: Mostly cloudy

2143 MST: the Moon was visible through a clear spot. It was about 9 hours after exactly Full. Took this handheld D850 DSLR photo (f/6.3, 1/500sec, ISO 100, FL 600mm, cropped from the full frame photo:

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I have posted my review of the ZWO Atmospheric Dispersion Corrector.

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