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NGC 4945 – GALAXY
Centaurus
(ra: 13:05,4/ dec -49:28)
cELEST
Merlo, San Luis Province, Argentina
February 11th 2009
DATA
TYPE: Dusty Hedge on Spiral Galaxy
VISUAL MAGNITUDE: 9
SIZE: 20 arc minutes
DISTANCE: 13 Millions light years
OBJECT DESCRIPTION
NGC 4945 is part of the Centaurus Group along with NGC 5128. Six times further away compared to Andromeda it’s a nearby Galaxy characterized by its high infrared luminosity, which also implies high levels of radiation emitted by its young and massive stars. It nucleus can not be directly observed by the astronomers, due the dark dust which is in the hedge perspective. The high speed rotation in its core, suppose the existence of a super massive black hole which size is about 1.6 million suns.
IMAGE INFORMATION
SCOPE: Celestron SCT C8 @ 6.3 Meade LXD 75
SKY CONDITIONS: 3/4 Moon Transparency and seeing regular
CAMERA: Starlight Xpress SXV H9
FILTERS: Astronomik Type II
EXPOSURES: LRGB (60,20,20,20)
ACQUISITION: AstroArt v 3. CCD control Interface v. 3.72
GUIDING: William Optics ZS 66 Apo refractor - SXV Guide Camera
PROCESSED: Maxim DL (no darks, flats nor bias used), CCD Sharp, Photoshop CS