Hemisphere:  Northern  ·  Constellation: Andromeda (And)
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Region of the BLAZAR 3C 66A (north of NGC 891), 



    
        

            gigiastro
Region of the BLAZAR 3C 66A (north of NGC 891), 



    
        

            gigiastro

Region of the BLAZAR 3C 66A (north of NGC 891)

Getting plate-solving status, please wait...
Region of the BLAZAR 3C 66A (north of NGC 891), 



    
        

            gigiastro
Region of the BLAZAR 3C 66A (north of NGC 891), 



    
        

            gigiastro

Region of the BLAZAR 3C 66A (north of NGC 891)

Technical card

Imaging telescopes or lenses: Canon EF 400mm f/5,6L USM

Imaging cameras: Canon EOS 60Da

Mounts: iOptron ZEQ25GT

Software: PixInsight  ·  Noel Carboni's AstroFlat Pro  ·  Elements Photoshop


Dates:Oct. 27, 2019

Frames: 464x30" (3h 52') ISO1600

Integration: 3h 52'

Darks: 10

Flats: 40

Flat darks: 20

Bias: 80

Avg. Moon age: 28.78 days

Avg. Moon phase: 0.63%

Bortle Dark-Sky Scale: 7.00

Temperature: 13.00


Basic astrometry details

Astrometry.net job: 3055864

RA center: 02h22m39s.8

DEC center: +43°0209

Pixel scale: 2.259 arcsec/pixel

Orientation: 358.845 degrees

Field radius: 0.691 degrees


Resolution: 1920x1080

Locations: Home, Mestre, Venezia, Italy

Data source: Backyard

Description

BLAZAR 3C 66A; UGC 1832 - UGC 1837 - UGC 1841

"...Blazars are (...) galaxies with active galactic nuclei (AGNs)

powered by actively feeding black holes. As heated material spirals

down the accretion disk surrounding an AGN, an intense magnetic field

helps produce high-energy, relativistic plasma jets (...).

What makes a blazar special is that one of its beams happens to point

directly toward us. From our head-on perspective looking down the throat

of its jet, a blazar appears much brighter than it normally would.

Changes in the jet result in variability in radio, infrared, optical, X-ray,

and gamma-ray wavelengths. In some cases, short-term outbursts of several

magnitudes have been recorded over just a few days."

(SKY & TELESCOPE • April 2010, page 71)

"In 1974 Texas astronomers Beverley and Derek Wills identified the radio source

3C 66A as a high-redshift quasar (z = 0.44, distance 4.6 billion light-years).

This blazar shows rapid fluctuations as well as long-term changes from magnitude

13.5 to 15.6. (....) Coincidentally, 3C 66A lies behind the rich galaxy cluster

AGC 347 in Andromeda and shares a field with three foreground cluster galaxies (...)."

(SKY & TELESCOPE • April 2010, page 74)

Cropping from original picture of 5202x3465 resolution

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  • Final
    Region of the BLAZAR 3C 66A (north of NGC 891), 



    
        

            gigiastro
    Original
  • Region of the BLAZAR 3C 66A (north of NGC 891), 



    
        

            gigiastro
    B

B

Description: Drizzle x2 integration

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Region of the BLAZAR 3C 66A (north of NGC 891), 



    
        

            gigiastro