NGC 2293 e Companheiras
Em LRGB
Observatório Voyager
Catálogo Pessoal - Voyager VGR-022
Porto da Roça II Saquarema/Rj - Brasil
Celestron C11 XLT
Montagem DM-01
Focalizador eletronico ZWO-EAF
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ZWO ASI 533mm Pro
Filter Wheel ZWO 7 posicoes
Redutor 0.63x
Filtros Optolong LRGB 36mm
60/20/20/20 x 120s
Total 4h00m Totais
Gain 101 Offset 30 CCD temperatura -10°
Darks 60X120
Flats e Dark Flats
Temperatura ambiente 20º
Bortle-5 transparencia do Ceu Regular
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Pixinsigth (empilamento e processamento PI)
Pós-Processamento Lightroom
NGC 2992 is a
Seyfert galaxy located 103 million
light years distant in the
equatorialconstellation of
Hydra. It was discovered in 1785 by
William Herschel.The
morphological classification of this galaxy is Sa, indicating a
spiral with no central
bar. The plane of the galaxy is inclined at an angle of 70° to the line of sight from the Earth, so it is being viewed from nearly edge on. A prominent dust lane extends along the major axis, crossing the nucleus.The nearby companion galaxy
NGC 2993 is located less than 3′ to the southeast of NGC 2292. It is located at a distance of 100 million
light years from Earth, which, given its apparent dimensions, means that NGC 2293 is about 160,000 light years across. It was discovered by
John Herschel on January 20, 1835. The two are linked by a
tidal bridge of ionized hydrogen and there are
tidal tails to the southeast of NGC 2993 and the north of NGC 2292. The encounter between these galaxies may be the trigger for the active nucleus in NGC 2992. There is a significant amount of dust obscuring the nucleus and cones of material outflowing from the core at nearly right angles to the alignment of the galaxy.
NuSTAR observations suggest there is an ultra-fast outflow component with a velocity of 0.21±0.01
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