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Comet C/2017 K2 (PanSTARRS)

Posted: 8 July 2022

Open: Thursday, 7 July 2022, 1807 MST
Temperature: 94°F
Session: 1782
Conditions: Clear, breezy

12" f/8 LX600 w/StarLock
2" 24mm UWA eyepiece
Focal reducer


1818-2000 MST: Relaxed on the observatory patio bench. I did some birdwatching using 12x50 binoculars.


1937 MST: Sunset. Calm now.

2001 MST: LX600 ON, StarLock OFF, High Precision OFF.

Viewed the Moon, 102X.

A few small clouds were coming in from the southwest.

Mounted the D850 DSLR at prime focus + focal reducer. Took this image of the Moon (1/250sec, ISO 200).


2012-2030 MST: Relaxed again on the bench while waiting for the sky to get a little darker.

Checked the camera focus using the Moon and then locked the 12" primary mirror.

2034 MST: Wi-Fi adapter ON.

Used SkySafari 7 Pro on the iPhone 13 Pro Max to GOTO Comet C/2017 K2 (PanSTARRS).

2037 MST: StarLock ON.

Took this StarLock autoguided photo of Comet C/2017 K2 (PanSTARRS), 30 seconds, ISO 5000, slightly cropped. The comet's coma and nucleus are visible. A faint tail is visible pointing upwards in the still bright moonlit sky.


2049 MST: StarLock OFF, Wi-Fi adapter OFF.

Viewed Comet C/2017 K2 (PanSTARRS), 102X. Nice coma, but no tail visible to the eye.

2057 MST: LX600 OFF.

Close: Thursday, 7 July 2022, 2110 MST
Temperature: 80°F
Session Length: 3h 03m
Conditions: Clear

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