Hello,
Well, last night I had my annual bash at trying to record Miranda, one of the fainter satellites of Uranus. I have previously succeeded recording the 4 brighter satellites, being Titania, Umbriel, Ariel and Oberon but Miranda has always eluded me.
Alas, last night was no different although with the smoke laden skies of Brisbane, I didn’t really expect her to reveal herself.
Details:- Tak Mewlon 180 F12 with WO x2.5 Barlow operating at F30 (5400mm efl), SBIG ST2000XM ccd camera.
- The image is a stack of 15 exposures of 180 secs to help punch through the smog.
- I then overlaid a mask to reduce the smearing and bloating of the planet, moons and stars and borrowed the colour of Uranus from a previous RGB effort.
I have also attached a single Raw frame and a couple of screen prints for information purposes.
Cheers
Dennis
Data:
Uranus in Pisces, Magnitude: 5.73, Size: 3.7"
Satellites:
Name Mag PA° Sep"
Ariel 14.4 340.5 13.3
Umbriel 15.0 348.3 18.6
Titania 13.9 342.2 31.2
Oberon 14.1 160.2 40.6
Current Status:
Earth Distance: 19.1 AU
Sun Distance: 20.1 AU
Diameter: 51118.0 km
On September 26, 2011 Uranus will be at opposition when it will be best observed at magnitude 5.7 and subtending 3.7"