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Contains:  M 65, M 66, NGC 3593, NGC 3623, NGC 3627, NGC 3628, The star 73Leo
Getting plate-solving status, please wait...
Leo Triplet, 


            William Jordan
Leo Triplet
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Leo Triplet

Technical card

Dates:May 9, 2018May 13, 2018

Baader RGB 2" B: 18x300" bin 1x1
Baader RGB 2" G: 33x300" bin 1x1
Baader RGB 2" R: 33x300" bin 1x1
Baader UV/IR-Cut/L Filter: 33x300" bin 1x1

Integration: 9.8 hours

Darks: ~40

Flats: ~40

Bias: ~250

Avg. Moon age: 25.40 days

Avg. Moon phase: 20.85%

Bortle Dark-Sky Scale: 6.00

Basic astrometry details job: 2061988

RA center: 11h 19' 49"

DEC center: +13° 14' 27"

Pixel scale: 1.747 arcsec/pixel

Orientation: 191.633 degrees

Field radius: 1.898 degrees

Resolution: 5798x5252

Locations: Ye Olde Driveway, The Woodlands, TX, United States

Data source: Unknown


Man, I continue to struggle with galaxy processing. Just seem to continually run into issues with weird gradients and crazy backgrounds after DBE. I think I might be having issues with calibrating with flats. I'll continue to work on it. I have at least ten times the data for this target than I've included here, but when trying to combine data from different days with different flats, my issues just seem to get compounded.



William Jordan
License: None (All rights reserved)

Sky plot

Sky plot


Leo Triplet, 


            William Jordan