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iPhone 13 Pro Max Comet C/2021 A1 (Leonard)

Posted: 21 December 2021

Monday, 20 December 2021, was mostly clear. During the morning I set up my new Explore Scientific weather station. I will post a review soon.

Open: Monday, 20 December 2021, 1800 MST
Temperature: 66°F
Session: 1706
Conditions: Mostly clear

12" f/8 LX600 w/StarLock
2" 24mm UWA eyepiece
2" 30mm eyepiece

iPhone 13 Pro Max

1803 MST: LX600 ON, StarLock OFF, High Precision OFF.

Viewed Venus, 102X. Nice crescent phase.

1804 MST: Wi-Fi ON.

Used SkySafari 7 Pro to GOTO Comet C/2021 A1 (Leonard).

Viewed Comet Leonard, 102X and 81X. A nice coma and a short tail were visible.

Mounted the iPhone 13 Pro Max with my LiDAR cover on the 2" 30mm eyepiece using the Levenhuk adapter.

1819 MST: StarLock ON.

1821 MST: Comet Leonard was low in the southwestern sky and was now getting behind a tree as seen from the observatory.

Took some StarLock autoguided iPhone 13 Pro Max afocal 81X photos of Comet Leonard using NightCap Camera.

1828 MST: This image was the best (Long Exposure, Light Boost, ISO 5000, 1sec, 1 minute, 1X lens).


1829 MST: StarLock OFF, Wi-Fi OFF.

1830 MST: Final look at Comet C/2021 A1 (Leonard), 81X, through the tree. Clouds were increasing. (The weather forecasts for the next several nights have cloudy skies and rain.)

1835 MST: Eastern sky brightening from the rising waning gibbous Moon.

Viewed Saturn and Jupiter, 102X.

1847 MST: LX600 OFF.

Close: Monday, 20 December 2021, 1855 MST
Temperature: 56°F
Session Length: 0h 55m
Conditions: Partly cloudy

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