Open: Wednesday, 20 October 2021, 1810 MST Temperature: 80°F

Session: 1679 Conditions: Mostly clear

Equipment:
12" f/8 LX600 w/StarLock
2" 24mm UWA eyepiece
2" 9mm 100° eyepiece

Camera:
iPhone 11 Pro Max
D850 DSLR

1814 MST: LX600 ON, StarLock OFF, High Precision OFF.

Viewed Venus, then Saturn, 102X.

1820 MST: viewed Jupiter, 102X. There were two moons visible, one on either side of the planet's disk. There appeared to be shadows from two moons on the planet's disk. Upped the magnification to 271X and confirmed that there were two dark spots. I used SkySafari 6 Pro on my iPhone to check what moons were where, and at first I thought the shadows were from the moons Callisto and Io. But after studying a magnified view in SkySafari I realized that one of the "shadows" was actually the moon Callisto itself. I had to try imaging the planet.

I mounted the iPhone 11 Pro Max on the 2" 9mm eyepiece using the Levenhuk adapter. I did several videos using the Camera app (slo-mo, 240fps, 1X and 2X lens). In between imaging, I relaxed on the observatory patio bench.

1853 MST: back inside the observatory.

I did more imaging of Jupiter. This is a stack of 2485 video frames, afocal 271X, 2X lens. The image shows Callisto, Io's shadow, and the Great Red Spot (sort of).

Mouseover or tap on image for labels

1912 MST: I stepped outside of the observatory and took this handheld D850 DSLR photo (f/3.5, 1/2sec, ISO 6400, 8mm fisheye lens, cropped) showing the Moon, Jupiter, Saturn, and Venus.

Mouseover or tap on image for labels

Back at the 12" telescope I viewed the Full Moon, 81X.

Took this handheld iPhone afocal 81X photo of the Moon using NightCap Camera (ISO 32, 1/400sec, 1X lens).

Then viewed the Moon, 102X. A very slight terminator was visible.

1930 MST: viewed Jupiter, 102X. Io's shadow and the moon Callisto were still in transit on the planet's disk.

1933 MST: LX600 OFF.

Close: Wednesday, 20 October 2021, 1940 MST Temperature: 64°F

Session Length: 1h 30m Conditions: Mostly clear

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