Contains:  Solar system body or event
Rupes Recta (The Straight Wall), 



Rupes Recta (The Straight Wall)

Technical card

Imaging telescopes or lenses: Edge HD 1100

Imaging cameras: QSI 660 WS

Mounts: Software Bisque Paramount MX

Guiding telescopes or lenses: Edge HD 1100

Focal reducers: Celestron f/7 reducer for Edge 1100 HD

Software: Deep Sky Stacker  ·  IrfanView  ·  Software Bisque The SkyX Professional  ·  Astra Image 3.0

Filters: Astrodon LRGB 1.25" E series

Date:Feb. 16, 2016

Time: 20:41

Frames: 38

Focal length: 2070

Seeing: 2

Transparency: 6

Resolution: 1174x1022

Locations: Back Yard, Lubbock, TX, United States

Data source: Backyard


Rupes Recta, a.k.a. the Straight Wall, is a rille or fault in Mare Nubium. Also visible in the image are the crater Birt (just below the Straight Wall), the rille Rima Birt (snake-like feature below Birt), and the crater Thebit (above the Straight Wall).

This image was captured with my deep sky camera, the QSI 660ws, using a luminance filter and 0.008s exposures binned 1x1. My 'scope was still set up with the f/7 reducer from last week's imaging session, providing an image scale of 0.46"/pixel. The seeing was horrible, with patchy cirrus clouds drifting over. I stacked 38 of the usable frames using Deep Sky Stacker, which is not really designed for lunar image processing. Basically, I used everything that I ought to be using for deep sky imaging. I would like to shoot this one again with better seeing and at f/10.

Deconvolution was applied in Astra Image 3.0 using Lucy-Richardson method with Moffat type PSF.



License: None (All rights reserved)


Rupes Recta (The Straight Wall),