M87 Jet; Centaurus A; iPhone Omega Centauri
Posted: 10 May 2018
Open: Wednesday, 9 May 2018, 1900 MST
Conditions: Mostly clear
1915 MST: sunset.
1921 MST: LX600 ON, StarLock OFF, High Precision OFF.
Viewed Venus, 102X.
Prepared the D850 DSLR for prime focus imaging.
1950 MST: dome OFF (onto POD Zenith Table; PZT).
2003 MST: viewed the galaxy M87, 102X. SYNCed the AutoStar on it. I last imaged this galaxy and the jet from its black hole in May 2016 using a D7200 DSLR on the 12" telescope. I would image it this night with the D850 DSLR.
2006 MST: Jupiter rose over the hill to the southeast.
2030 MST: mounted the D850 DSLR at prime focus of the 12" telescope. Focused on the star Regulus.
2042 MST: StarLock ON.
This is a StarLock autoguided, 1 minute, ISO 2500, White Balance 4000K, image of M87. The jet is visible extending a short distance to the right of the galaxy.
I then slewed the telescope to the Centaurus A galaxy, but it was behind a tree. 2046 MST: StarLock OFF. 2051 MST: dome ON. Tweaked the focus using the star Spica.
2110 MST: StarLock ON.
I tried imaging Centaurus A, but seeing at its very low altitude was not good this night. I was not able to do long exposures without autoguiding errors. I did manage to get this StarLock autoguided, 1 minute, ISO 6400, WB 4000K, image:
2121 MST: StarLock OFF.
Removed the DSLR.
Viewed Omega Centauri (globular cluster), 102X and 81X.
Mounted the iPhone 8 Plus on the 2" 30mm eyepiece.
2130 MST: StarLock ON.
Took this afocal 81X image of Omega Centauri with the iPhone using the iOS app NightCap Camera (Long Exposure, Light Boost, ISO 1600, 1/3sec, 1 minute exposure):
2137 MST: StarLock OFF.
Ended imaging. Viewed Jupiter, 102X. Four moons visible.
2144 MST: LX600 OFF.
Close: Wednesday, 9 May 2018, 2152 MST
Session Length: 2h 52m|
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