This Moon crescent kept us company for much of the evening during our last field night. It set at 10 pm, giving us a couple of hours of darkness. We are heading for a Full Moon on Saturday, so I don’t expect to do any more deep sky imaging for a week or two, although I have one final image left to post from last week.
The Moon is always fun to shoot, especially as a crescent, so I took this image during twilight, before the sky was dark enough for deep sky imaging.
The image is a stack of the best 250 of 500 video frames and as I was set up for deep sky imaging, I had my light pollution filter in place instead of a moon filter. Probably that was not a good idea for lunar shots – but it is what it is.
The video was processed in PIPP and converted to AVI, before stacking the best 50% of frames in Autostackert and a final bit of sprucing up in GIMP.
Apparent size: 32.7′
Age: New Moon + 4 days.
Visual magnitude: -7.7
Altitude during exposure: 34°
Did You Know?
The Moon’s mass is 1.23% of Earth and it’s surface gravity is 16.54% that of Earth.
Here is some technical stuff.
Frames: best 50% of 500.
Image acquisition: SharpCap.
|Telescope:||SkyWatcher Esprit||Type:||120ED triplet refractor|
|Focal:||840 mm F/7||Mount:||SkyWatcher EQ6-R Pro|
|Camera:||ZWO ASI 071 MC Pro
||Type:||CMOS 28.4mm 16 Mpx
|Optical aids:||Flattener: Y; filter: LP|
[ZWO ASI071MC Pro]
Image © Roger Powell