Celestial hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  M 1  ·  NGC 1952
The Crab, Derek Dailey
The Crab
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The Crab

The Crab, Derek Dailey
The Crab
Powered byPixInsight

The Crab

Equipment

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Acquisition details

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Description

I imaged this over 3 nights this fall in my backyard. I've learned some more advance processing techniques recently. So basically after I crammed 195 images into 1, I then pulled the picture apart and split it into Red, Green, and Blue frames, then I reprocessed the data twice more and pulled narrowband data which is the Oxygen iii (Teal) and the Hydrogen Alpha (Red) and then recombined that to get this! It really makes the narrowband colors pop in this difficult target!

Nerdy details:

Distance to Earth: 6,523 light years

Radius: 5.5 light years

Age: 1,001 years

Absolute magnitude (V): −3.1±0.5

Apparent dimensions (V): 420″ × 290″

Coordinates: RA 5h 34m 32s | Dec +22° 0′ 52″

Acquisition:

Bortle 8 Zone

Celestron C6XLT SCT OTA

Starizona NightOwl .4x focal reducer

600mm f/4

ZWO ASI533MC Pro Camera

Gain 240, Offset 70, -10C

ZWO ASI120MM Guide camera

Optolong L eNhance filter

Celestron AVX EQ Mount

Stellarmate INDI Controller

120 x 300 sec. Light frames. (10 hours)

Calibration frames: 25 each darks, flats and dark flats

Astro Pixel Processor for stacking and processing

Post finishing in Photoshop and Lightroom

Comments

Sky plot

Sky plot

Histogram

The Crab, Derek Dailey