NEO Asteroid (7335) 1989 JA
Posted: 27 May 2022
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Open: Thursday, 26 May 2022, 1915 MST Temperature: 87°F |
Session: 1772 Conditions: Clear, breezy |
Equipment:
12" f/8 LX600 w/StarLock
2" 24mm UWA eyepiece
Focal Reducer
2" UHC filter
Camera:
D850 DSLR
SYNCed observatory clock and D850 DSLR clock to WWV time signals.
1925 MST: Sunset.
1927-2000 MST: Relaxed on the observatory patio bench.
2001 MST: LX600 ON, StarLock OFF, High Precision OFF.
Slewed to Spica. Then prepared the D850 DSLR for imaging.
2007-2040 MST: Relaxed some more on the bench.
Mounted the D850 DSLR at prime focus + focal reducer, focused on the star Spica, REMOVED THE MASK (!), and locked the telescope mirror.
2046 MST: Wi-Fi ON.
Used SkySafari 7 Pro on the iPhone to GOTO Near Earth Object (NEO) Asteroid (7335) 1989 JA. The asteroid was very low in the southern sky.
2049 MST: StarLock ON.
Began imaging the asteroid. It was moving so fast that I had to keep slewing the telescope to get good framing in the camera field-of-view. I was able to get three good images of Asteroid (7335) 1989 JA, StarLock autoguided, 1 minute, ISO 800, White Balance 4550K, 2 minute intervals.
The image of the asteroid looks wobbly, but that is a result of its low altitude in the sky and atmospheric distortion.
2114 MST: Wi-Fi OFF.
Mounted the D850 DSLR at prime focus + UHC filter, focused on Spica, locked the mirror. Slewed to Centaurus A (galaxy). I began imaging the galaxy, but seeing rapidly deteriorated, resulting in poor autoguiding. I finally gave up. This is the only useable image I got (5 minutes, ISO 6400).
2130 MST: StarLock OFF.
Viewed Centaurus A (galaxy), 102X. The view was not very good this night.
2138 MST: LX600 OFF.
2145 MST: Took a Sky Quality reading and reported the result to Globe at Night.
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Close: Thursday, 26 May 2022, 2149 MST Temperature: 74°F |
Session Length: 2h 34m Conditions: Clear, SQM 21.06 |
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