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Lunar Crater Humboldt Details

Posted: 30 June 2017

Open: Thursday, 29 June 2017, 1856 MST
Temperature: 89°F
Session: 1132
Conditions: Clear

Equipment Used:
12" f/8 LX600 w/StarLock
2" 24mm UWA eyepiece
2" 2X PowerMate
D7200 DSLR

1903 MST: LX600 ON, StarLock OFF, High Precision OFF.

1904 MST: viewed Jupiter, 102X. Three moons visible against the bright blue sky 35 minutes before sunset.

Then viewed the Moon, 102X and 203X. Crater Humboldt was nice at 203X. Lots of details visible on the crater floor. Lunar libration has brought it into a good viewing position (see this Sky & Telescope article).

1922 MST: mounted the D7200 DSLR at prime focus + focal reducer. Then began waiting for the Sun to set.

1939 MST: sunset.

Moon, prime focus + focal reducer, 1/500sec, ISO 400, White Balance Auto:


Removed the focal reducer and added the 2X PowerMate for this image of the Moon, 1/320sec, ISO 1600, WB Auto, showing from the lunar terminator (left) to crater Humboldt (right):

Mouseover or tap on image
Mouseover or tap on image for pointer to crater Humboldt

This image, prime focus + 2X PowerMate, 1/500sec, ISO 2500, WB Auto, shows some of the details inside crater Humboldt:

Mouseover or tap on image
Mouseover or tap on image for pointer to details on floor of crater Humboldt

1957 MST: ended imaging. Took a quick look at the Moon, 102X.

2001 MST: LX600 OFF.

Close: Thursday, 29 June 2017, 2011 MST
Temperature: 85°F
Session Length: 1h 15m
Conditions: Clear

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