Saturn

2020-07-03 Saturn & its brightest moon Titan (lower right).

With Titan.

Apparent size:18.4 arc-sec. (Moon is 30 arc-Min)
Diameter:120,536 km (about 9.5 Earths).
Distance:9.04 AU (about 75.2 light minutes).
Date:2020-07-03.
Exposure:500 frame video @ 2.29 sec – best 25% stacked.

Saturn is in a good position here in the Southern Hemisphere at a declination of 20° South – and is at opposition on the 21st July, just a week after Jupiter. It’s high and bright at magnitude +0.2.

The ring tilt relative to us is currently about 21°. I remember back in 2009 when the tilt angle was zero, making Saturn look a bit weird!

Saturn’s brightest Moon, Titan, appears in the image, lower right. It is the second largest moon in the Solar System with a diameter of 5151 km, nearly 50% bigger than our Moon. It is also bigger than the planet Mercury.

Titan’s orbit of Saturn takes just under sixteen days, while Saturn’s orbit of the Sun takes 29.46 years.

After capturing the Moon, Jupiter and Saturn in one session, I was pleased with the performance of my telescope combined with the new 2x amplifier – but before I could test it on a deep sky object, the sky clouded over. Why does it always have to end like that…….? 😒

EDIT: You’ve darkened my Saturn image, WordPress. I warned you not to do it again!


Telescope Details
SkyWatcher Esprit 120 mm apochromatic 3-element refractor.
840 mm focal length @ f/7 with field flattener and 2x Televue Powermate.
Baader L-Booster UHC-S light pollution filter 2458276.
SkyWatcher EQ6-R Pro mount.
Camera: ZWO ASI 071 MC Pro (CMOS 28.4mm 16 Mpx).

9 Comments

    1. That’s a good policy, even if does add to the time you spend on each post.
      I’m with Flickr, Smugmug’s sibling – but I have suspicions about how their processing makes subtle changes too.

      Like

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