Contains:  Solar system body or event
Cleodemes/Mare Crisium with IR Cut Filter, 



    
        

            turfpit

Cleodemes/Mare Crisium with IR Cut Filter

Technical card

Imaging telescopes or lenses: SkyWatcher 127 MAK

Imaging cameras: QHY5L-II-M QHY 5L-II mono

Mounts: Celestron CG5 Advanced GT

Software: AutoStakkert! 3  ·  GIMP 2.10  ·  AstroDMx Capture for Linux

Filters: IR cut filter


Date: Feb. 22, 2019

Time: 00:41

Frames: 1766

FPS: 30.00000

Focal length: 1500


Resolution: 968x1288

Data source: Backyard

Description

A 91% waxing moon was captured with a SkyWatcher 127 MAK mounted on a Celestron CG5 Advanced mount using a QHY 5LII-M camera. An IR cut filter (cost £15) was used to help manage the lunar brightness. The filter did provide a steadying effect for the atmospheric disturbance.

A 1 minute video was taken using Astro DMx Capture running on Debian 9.4 - camera settings were MONO8 and 1280x960 with gain at 30%. The resultant 1766 frame video was processed using Autostakkert 3 (running under WINE). The best 20% frames were stacked (data quality 100% - 78%) using 500 Alignment Points. Sharpening was achieved by selecting the 'Sharpen' setting in Autostakkert. The '_conv' image was processed in GIMP 2.10 with minor adjustments to Contrast and Brightness.

The crater Endymion can be seen top centre of the image. Further information on Cleomedes and the surrounding area can be found in Patrick Chevalley's Virtual Moon Atlas.

Dave

The log file for the capture:
Camera Log File: AstroDMx Capture (0.50.11)
--------------------------------------------
Camera Name = QHY5LII-M
Camera Format = MONO 8
Resolution = 1280 x 960
Output Format = SER (8-Bit)
Capture Mode = Time Limit
Colour Mode = Greyscale
Frame Integration = NOT ACTIVE
Exposure = 732 Microseconds
Gain = 30 % (native: 31)
Gamma = 50 % (native: 10)
Brightness = 50 % (native: 0)
Contrast = 50 % (native: 0)
USB Bandwidth = 0
USB Speed = 2
ROI Position = Not Used
Binning = 1x1
Flip Position = NOT ACTIVE
Bit Depth = 8-Bit
Realtime Calibration = NOT ACTIVE
Frames Saved = 1766
Average Frame Rate = 29.8593 fps
Histogram Mode = LOG
Histogram Channel = Greyscale
Data Collection Started = 2019/2/22 at 0:40:29
Data Collection Ended = 2019/2/22 at 0:41:29

Comments

Histogram

Cleodemes/Mare Crisium with IR Cut Filter, 



    
        

            turfpit