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M33 - The Triangulum Galaxy

lxkor
891508
Category:Deep Sky
Published:
1348
M33 - The Triangulum GalaxyNGC 592NGC 603IC 134IC 136IC 137IC 139IC 140NGC 588NGC 595NGC 598NGC 604IC 131IC 132IC 133IC 135IC 142IC 143
Resolution:
3008x3008 px
File size:
4031 KB

Photo description / processing

The first session took place on November 2nd, and I only managed to capture through the red and blue filters. I completed the green channel only on December 26th. After finishing the post-processing, I noticed an "artifact" in the upper right corner of the frame in the form of a sequence of red and blue dots. At first, I wanted to remove it, but after an investigation, it turned out to be a large Jupiter trojan asteroid from the Trojan group - 16070 Charops, with a diameter of over 60 km. At the time of imaging, it had an apparent magnitude of approximately 16.85 and was barely distinguishable in individual frames. The color is explained by the use of a monochrome sensor, and the absence of green dots is because the green channel was completed almost 2 months later. So, a small thing - but a pleasant one.

Technical information

Telescope/Lens
SharpStar 61EDPH II
Camera
ZWO ASI533MM Pro
Mount
Umi 17 Lite
Guide Scope
Starpal 32/125 f/4 Guide Scope
Guide Camera
ZWO ASI120MM
Accessories
ZWO Asiair mini, ZWO EFW-S, ZWO EAF
Software
Siril, GraXpert, Adobe Photoshop, Cosmic Clarity
Location
Липецк, Россия

Light pollution

Yellow, Bortle 5 zone

Date taken

Exposure

  • 106 × 180″ · ISO/Gain: 101 · R, G, B ·

Total exposure: 5 h 18 m

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