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Waxing Gibbous Moon, International Space Station

Posted: 14 May 2022

Open: Friday, 13 May 2022, 1822 MST
Temperature: 80°F
Session: 1764
Conditions: Clear, breezy

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

iPhone 13 Pro Max

SYNCed observatory clock to WWV time signals.

1830-1911 MST: Relaxed on observatory patio bench.

1851 MST: Took this iPhone 13 Pro Max from the bench of the waxing gibbous Moon.


1917 MST: Sunset. Calm now.

Prepared the D850 DSLR for imaging of the Moon.

1920 MST: LX600 ON, StarLock OFF, High Precision OFF.

Updated the TLE using the AutoStar for this night's excellent pass of the International Space Station (ISS).

1926 MST: Dome OFF.

Viewed the Moon, 102X.

Checked the alignment of both finderscopes. Tweaked one.

Mounted the D850 DSLR at prime focus + focal reducer. This will be the configuration I will use for Sunday night's Total Lunar Eclipse.

1932 MST: Moon, 1/6400sec, ISO 1600.


I plan to use ISO 1600 for the entire eclipse of the Moon, changing the shutter speed as necessary for proper exposure.

I then mounted the D850 DSLR at prime focus for the ISS pass.

1939-2007 MST: Relaxed on the bench while waiting for the ISS pass.

Focused on the Moon, locked the 12" primary mirror.

2011 MST: Ready for the ISS pass.

Tracking of the ISS was pretty good during the pass. I did a video recording, 2160p, 30 fps, 1/2500sec, ISO 1600. These are some images of the ISS near mid-pass (the closest point).


Removed the camera and viewed the Moon, 102X.

2036 MST: LX600 OFF.

2042 MST: Dome ON.

Close: Friday, 13 May 2022, 2047 MST
Temperature: 65°F
Session Length: 2h 25m
Conditions: Clear

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