Centaurus A, NGC 5128


Centaurus A or NGC 5128 is a prominent galaxy in the constellation of Centaurus. It was discovered in 1826 by Scottish astronomer James Dunlop from his home in Parramatta, in New South Wales, Australia. There is considerable debate in the literature regarding the galaxy’s fundamental properties such as its Hubble type (lenticular galaxy or a giant elliptical galaxy) and distance (10–16 million light-years). NGC 5128 is one of the closest radio galaxies to Earth, so its active galactic nucleus has been extensively studied by professional astronomers. The galaxy is also the fifth brightest in the sky, making it an ideal amateur astronomy target, although the galaxy is only visible from low northern latitudes and the southern hemisphere.

Imaging telescopes or lenses: Bintel (GSO) RC8
Imaging cameras: QHY8L
Mounts: Sky-Watcher HEQ5 PRO Synscan GoTo
Guiding telescopes or lenses: Orion ST 80
Guiding cameras: QHYCCD QHY5
Software: DeepSkyStacker,  StarTools
Filters: Baader Planetarium UHC-S Filter
Resolution: 1500×995
Dates: June 15, 2014
Frames: 15×600″
Integration: 2.5 hours
Avg. Moon age: 16.85 days
Avg. Moon phase: 95.16%
RA center: 201.389 degrees
DEC center: -43.018 degrees
Pixel scale: 0.908 arcsec/pixel
Orientation: 88.052 degrees
Field radius: 0.227 degrees
Locations: Basalt Ridge Observatory, Brisbane Australia, Brisbane, Queensland, Australia

Author: Mario Vecchi

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