Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains: 
Clavius & Longomontanus etc. | 30,000 frames, 





    
        

            turfpit

Clavius & Longomontanus etc. | 30,000 frames

Acquisition type: Lucky imaging

Technical card

Resolution: 893x783

Date:July 25, 2019

Time: 07:06

Frames: 30000

FPS: 44.00000

Focal length: 2032

Seeing: 3

Data source: Backyard

Description

A 30,000 frame capture resulting in a 23Gb SER video. Captured 2 hours after sunrise, winds around 5 mph. Moon altitude was 44°, 48% waning. The capture took approximately 11 minutes.

Equipment: Celestron C8 SCT, Celestron AVX Mount, Celestron Wratten #25 (red) filter, JMI Motor Focuser, QHY5LII-M camera.

Capture: AstroDMx Capture 0.61.46 (alpha) running on Linux under Fedora 30, SER, MONO8, 1024x768, 30,000 frames @ 803 microseconds, gain=35%, USB Bandwidth=0, Speed=2. Capture at 44 fps.

Processing: SER file pre-processed with PIPP for image stabilisation. Autostakkert!3, 700 Alignment Points, stack best 10%. GIMP for Sharpen (Unsharp Mask), Shadows-Highlights, Contrast.

Information on lunar image stabilisation using PIPP can be found at
https://sites.google.com/site/astropipp/example-uasge/example8

The image shows craters Clavius, Scheiner, Schiller, Longomontanus, Wilhelm and others (from Virtual Moon Atlas).

The capture laptop was a Lenovo x220, i5 processor, 8Gb RAM, 480GB SSD, USB2. The capture was a stress test for an alpha release of AstroDMx - it passed.

30,000 frames is playing a numbers game to beat the 'seeing'. The top 10% of frames gave a quality rating in Autostakkert of 75% up to 100%. 3,000 frames were stacked.

Dave

Camera Log File: AstroDMx Capture (0.61.46)
--------------------------------------------

AstroDMx Mode = Hardware Acceleration

Camera Name = QHY5LII-M
Camera Format = MONO 8
Resolution = 1024 x 768
Output Format = SER (8-Bit)
Capture Mode = Frame Limit

Colour Mode = Greyscale
Frame Integration = NOT ACTIVE
Exposure = 803 Microseconds
Gain = 35 % (native: 11)
Gamma = 50 % (native: 10)
Brightness = 50 % (native: 0)
Contrast = 50 % (native: 0)

USB Bandwidth = 0
USB Speed = 2

ROI Position = X = 128 Y = 96
Binning = 1x1
Flip Position = NOT ACTIVE
Bit Depth = 8-Bit
Realtime Calibration = NOT ACTIVE

Frames Saved = 30000
Average Frame Rate = 44.5058 fps
Histogram Mode = LOG
Histogram Channel = Greyscale

Data Collection Started = 2019/7/25 at 6:55:2
Data Collection Ended = 2019/7/25 at 7:6:32

NB: This file should be viewed using a fixed width font

Comments

Author

turfpit
turfpit
License: None (All rights reserved)
681
Like

Histogram

Clavius & Longomontanus etc. | 30,000 frames, 





    
        

            turfpit