Open: Friday, 7 July 2023, 1811 MST Temperature: 95°F

Session: 1907 Conditions: Clear, breezy

Equipment:
12" f/8 LX600 w/StarLock
2" 24mm UWA eyepiece
1.25" 9.7mm eyepiece
Atmospheric Dispersion Corrector
2" 4X Powermate

Camera:
D850 DSLR

1817 MST: LX600 ON, StarLock OFF, High Precision OFF.

Viewed the crescent Venus, 102X and 251X + Atmospheric Dispersion Corrector (ADC).

Mounted the D850 DSLR at prime focus + 4X Powermate + ADC.

Venus, 1/400sec, ISO 400, full-frame.

Stack of 1833 video frames (30 seconds), 1080p, 60fps, 1/320sec, ISO 400.

Viewed Venus, 251X + ADC.

1845 MST: Relaxed on the observatory patio bench.

1929 MST: Back at the 12" telescope. Viewed Venus, 251X + ADC.

1937 MST: Sunset. Calm now.

1938-2015 MST: Relaxed on the bench to watch the stars come out.

Last look at Venus, 251X + ADC and 102X.

Mounted the D850 DSLR at prime focus of the 12" telescope.

2024-2045 MST: Enjoyed the night sky view from the bench while waiting for the sky to get darker.

Back at the telescope, focused on the star Spica and locked the 12" telescope primary mirror.

2048 MST: High Precision ON.

Slewed to NGC5322 (galaxy).

2051 MST: StarLock ON.

Imaged the following Herschel 400 objects, StarLock autoguided, ISO 3200, White Balance 5000K.

NGC5322 (galaxy, 3 minutes)


NGC5466 (globular cluster, 1 minute)


NGC5473 (galaxy, 3 minutes)


NGC5474 (galaxy, 3 minutes)

2130 MST: StarLock OFF.

Observed the following Herschel 400 galaxies, 102X: NGC5557, NGC5566, NGC5576, NGC5631, NGC5676, NGC5689, NGC5746, NGC5846, NGC5866 (M102), NGC5907, and NGC5982. Also observed these globular clusters, 102X: NGC5634, NGC694, and NGC5897.

2220 MST: LX600 OFF.

2233 MST: Took a Sky Quality reading.

Close: Friday, 7 July 2023, 2236 MST Temperature: 81°F

Session Length: 4h 25m Conditions: Clear, SQM 21.05

---

Comments are welcome using Email. Twitter users can use the button below to tweet this report to their followers. Thanks.

Tweet

---

Previous report

Cassiopeia Observatory Home Page