Near Full Moon

The two large craters with ejection rays are:

Copernicus (just right of centre), 93 km diameter & 3.8 km deep; and

Tycho (top left), 86 km diameter & 4.8 km deep.


Object Details:

Moon Visual magnitude: -11.7
Illumination: 94.6%
Apparent diameter: 30.8 arc min
Actual diameter: 3475 km
Distance: 388,144 km
Full Moon: -2.2 days


Exposure: AVI capture @30 fps.
Date: 2018-10-22.
Location: Leumeah, NSW.
Sky: outer suburban.
Cloud: mostly clear but increased cloud late evening.
Processing software: PIPP 2.5.9, Registax 5, Gimp.
Cropping: yes.


Imaging telescope: Skywatcher Esprit 120ED Super APO triplet refractor.
Focal length: 840 mm, focal ratio: f/7.
Imaging camera: ZWO ASI 071MC Pro.
Telescope mount: SkyWatcher EQ6-R.
Polar aligning: QHYCCD PoleMaster.
Field flattener: yes; filter: no.
Imaging software: SharpCap 3.0

Observing Notes:

An experimental use of my ZWO astro-cameras, following resolution of telescope alignment issues.

I’ve done very little astro-photography so far this year, due mainly to my telescope mount malfunctioning.

The purchase earlier in the year of two ZWO astro-cams elevated me out of my comfort zone and confronted me with a new style of photography to which I am unaccustomed. Without my telescope I was unable to get imaging time, so here I am nine months on, still trying to gain experience with the “new” cameras.

What better object than the Moon to resume testing with?

Image Log:

[ZWO ASI071MC Pro]
Output Format=AVI files (*.avi)
Capture Area=4944×3284
Colour Space=RGB24
Hardware Binning=Off
Turbo USB=80(Auto)
Frame Rate Limit=Maximum
Timestamp Frames=On
White Bal (B)=96(Auto)
White Bal (R)=35(Auto)
Cooler Power=100
Target Temperature=-20
Auto Exp Max Gain=300
Auto Exp Max Exp M S=30000
Auto Exp Target Brightness=100
Mono Bin=Off
Anti Dew Heater=On
Apply Flat=None
Subtract Dark=None
#Black Point
Display Black Point=0
#MidTone Point
Display MidTone Point=0.5
#White Point
Display White Point=1

Image © R.Powell



  1. I had the same learning curve problem moving from DSLR imaging to Monochrome, you can read all the literature, watch all the YouTube videos on the subject. but you don’t learn anything until you actually do it yourself.


  2. Thanks Will.

    New technologies bring new challenges to overcome but I thought it would be easier to adapt than it has seemed so far.

    Yes there are online resources but somehow I still end up learning from my own mistakes.



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