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M101trying the Optolong L-Pro filter with a OSC camera.

Image

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About this observation
Observer
Dean Ashton
Time of observation
25/03/2020 - 20:30
Object
M101
Observing location
St Austell, Cornwall UK
Equipment
Celestron 9.25 EdgeHD
0.7xFocal Reducer
Celestron Nightscape 10100 CCD OSC
Optolong L-Pro Filter
CGEM mount
Exposure
75x600s @/f7
Tags

This image of M101 was captured over the four nights of 15th, 23rd, 24th and 25th March 2020.  

A total of 75x600-second light frames were captured.  The Nightscape 10100 TEC was set at -10C. An Optolong L-Pro filter was used.  The L-Pro filter is a luminous filter that blocks typical light pollution wavelengths and provides an IR cut-off.

Image capture was controlled with SGP-Pro software.

Image calibration, integration and processing carried out with PixInsight.

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