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Contains:  omega Cen, NGC 5139

Image of the day 03/30/2015

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            Roberto Colombari


Technical card

Resolution: 1833x1800 job: 585466

RA center: 201.692 degrees

DEC center: -47.472 degrees

Pixel scale: 2.789 arcsec/pixel

Orientation: 2.021 degrees

Field radius: 0.995 degrees


Omega Centauri
L: 39x240s
RGB: (4, 4, 5)x240s
APO TS 80mm/480mm - SBIG8300

Omega Centauri (ω Cen), or NGC 5139, is a globular cluster in the constellation of Centaurus that was identified by Edmond Halley in 1677. Located at a distance of 15,800 light-years (4,850 pc), it is the largest globular cluster in the Milky Way galaxy at a diameter of roughly 150 light-years.[10] It is estimated to contain approximately 10 million stars and a total mass equivalent to 4 million solar masses.[11]
Omega Centauri is so distinctive from the other galactic globular clusters that it is thought to have an alternate origin as the core remnant of a disrupted dwarf galaxy.[12]
Source: Wikipedia



Roberto Colombari
License: None (All rights reserved)

Sky plot

Sky plot




            Roberto Colombari

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Imagers of Italy