M 33 (second version)

alesterre

751305

Deep Sky

Dec 5th, 2020

2226

NGC 592NGC 588NGC 595NGC 598NGC 604IC 131IC 132IC 133IC 135IC 142NGC 603IC 134IC 136IC 137IC 139IC 140IC 143

Resolution:: 2929x1930 px
File size:: 3952 KB

Show astrometry on hover

Photo description / processing

A new version, more colorful and brighter. Captured over five nights between September 18th and 27th, sequentially on two different setups: first two nights with a 130mm Newtonian and an APS-C mirrorless Canon M50, then on a small apo-refractor with a monochrome camera and LRGBHa filters.

Technical information

Telescope/Lens: Sky-Watcher 130PDS, TS-Optics Photoline 60mm f/6 FPL53
Camera: Canon M50, QHY178m
Mount: HEQ5 Pro
Guide Scope: Svbony 60/240mm
Guide Camera: Qhy5L-II-c
Accessories: Baader MPCC Mk3, TS-Optics Photoline 2" 0.79x reducer, Svbony 1.25" LRGB set, Baader 1.25'' Ha 7nm
Software: APT, PHD2, AstroPixelProcessor, Registax, Topaz Denoise, GIMP, Lightroom

Location: Старые Кены, Россия

Light pollution

Orange, Bortle 6 zone

Date taken: Sep 17th, 2020

Exposure

105 × 120″ · ISO/Gain: 800 · 130pds, M50 · Sep 17th, 2020
58 × 300″ · ISO/Gain: 400 · 130pds, M50 · Sep 17th, 2020
200 × 120″ · ISO/Gain: 0 · 60mm APO, QHY178m, L · Sep 17th, 2020
228 × 120″ · ISO/Gain: 0 · Qhy, L · Sep 17th, 2020
30 × 180″ · ISO/Gain: 10 · Qhy, R · Sep 17th, 2020
22 × 180″ · ISO/Gain: 10 · Qhy, G · Sep 17th, 2020
45 × 180″ · ISO/Gain: 10 · Qhy, B · Sep 17th, 2020
79 × 180″ · ISO/Gain: 10 · Qhy, Ha · Sep 17th, 2020

Total exposure: 31 h 24 m

Comments

Peter Tiagunov

You've "lost" IC 132 & NGC 588 (HII regions), probably due to high light pollution.
https://en.wikipedia.org/wiki/Astronomical_filter#/media/File:UHC_filter_spectrum.jpg

Dec 6th, 2020