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iPhone Astrophotography Centaurus A Galaxy

Posted: 25 May 2022

Monday, 23 May 2022, was cloudy and windy.

Open: Tuesday, 24 May 2022, 1830 MST
Temperature: 81°F
Session: 1770
Conditions: Clear, breezy

12" f/8 LX600 w/StarLock
2" 24mm UWA eyepiece
1.25" 26mm eyepiece
2" 14mm 100° eyepiece

iPhone 13 Pro Max

1842-1923 MST: Relaxed on the observatory patio bench.


1924 MST: Sunset.

1925 MST: LX600 ON, StarLock OFF, High Precision OFF.

Slewed the 12" telescope to the star Spica. Did iPhone-eyepiece spacing tests.

1938-2030 MST: Relaxed on the bench to watch the stars come out. Took these handheld iPhone 13 Pro Max photos from the bench using the Camera app (Night Mode, 3 seconds, 1x lens).

Big Dipper over Cassiopeia Observatory

Hercules (right) and the star Vega (bottom middle)

2031 MST: Calm now. Viewed Centaurus A (galaxy), 94X. Nice view even though the galaxy was low in the southern sky (13°).

2039 MST: Viewed M13 (Great Gobular Cluster in Hercules) and then Omega Centauri (globular cluster), 12x50 binoculars. Both were nice views and the comparison of the much larger Omega Centauri with M13 was impressive.

2046 MST: Attached the LiDAR Cover on the iPhone 13 Pro Max and mounted the iPhone on the 26mm eyepiece using the Levenhuk adapter.

2049 MST: StarLock ON.

StarLock autoguided iPhone afocal 94X image of Centaurus A (galaxy) taken with NightCap Camera (Long Exposure, Light Boost, ISO 32000, 1sec, 1 minute exposure, 1X lens).


2102 MST: StarLock OFF.

Viewed Centaurus A (galaxy), 102X.

Viewed Omega Centauri (globular cluster), 102X and 174X. Impressive view with the Explore Scientific 2" 14mm 100° eyepiece (174X).

2109 MST: LX600 OFF.

2116 MST: Took a Sky Quality reading and reported the result to Globe at Night.

Close: Tuesday, 24 May 2022, 2120 MST
Temperature: 69°F
Session Length: 2h 50m
Conditions: Clear, SQM 21.07

I delivered David H. Levy Arizona Dark Sky Star Party posters to Oracle State Park, the Oracle Visitors Center, and the Oro Valley Chamber of Commerce.


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