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Moon, Earthshine

Posted: 7 June 2022

Friday, 3 June 2022, was cloudy. Cloudy skies continued until Monday, 6 June.

On Saturday, 4 June, I attended a four-hour online reunion of alumni and professors of the Indiana University Department of Astronomy. I was an astrophysics undergraduate student there 1966-70 and worked on the IU Asteroid Program during those four years. It was fun to see and hear everyone's stories about IU, the department, and how their careers have worked out. Although none of my classmates were there, it was nice to see and hear from Dr. Martin Burkhead, one of my professors.

Open: Monday, 6 June 2022, 1819 MST
Temperature: 88°F
Session: 1777
Conditions: Clear, breezy

12" f/8 LX600 w/StarLock
2" 24mm UWA eyepiece
Focal reducer
2" 2X Powermate
2" 4X Powermate


1826 MST: LX600 ON, StarLock OFF, High Precision OFF.

Viewed the Moon, 102X.

1830-1858 MST: Relaxed on the observatory patio bench.

1901 MST: Dome OFF.

Prepared the D850 DSLR for Moon imaging. Mounted the D850 at prime focus + focal reducer.

1909-1927 MST: Relaxed on the bench.

1930 MST: Sunset. Calm now.

I then took a series of images of the Moon at various focal lengths.

Prime focus + focal reducer (1/320sec, ISO 200)

Prime focus (1/500sec, ISO 800)

Prime focus + 2X Powermate (1/320sec, ISO 1600)

Prime focus + 4X Powermate (1/250sec, ISO 4000)

Mounted the D850 at prime focus + focal reducer for this image of Earthshine (1/6sec, ISO 800). The illuminated portion is overexposed to capture the illumination from the Earth.


Did some lunar observing, 102X, 203X, and 406X. There were nice sights at 406X along the terminator.

2001 MST: LX600 OFF.

2008 MST: Dome ON.

Close: Monday, 6 June 2022, 2013 MST
Temperature: 80°F
Session Length: 1h 54m
Conditions: Clear

These images are merges of my two images of the Moon taken on 1 June 2022 and 2 June 2022.


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