Oct 25, 2018
Spiral Galaxy NGC253 and Globular Cluster NGC288
by Eddie Trimarchi
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Spiral Galaxy NGC253 and Globular Cluster NGC288
by Eddie Trimarchi
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NGC 253 - The Sculptor galaxy
This is a 20 combined LRGB (4 x 300s) exposure with the opacity of the luminescence frame set at 33%, I don’t think it dissolves any colour from the image at that level.
The Sculptor Galaxy is located at the centre of the Sculptor Group, one of the nearest groups of galaxies to the Milky Way. The Sculptor Galaxy (the brightest galaxy in the group and one of the intrinsically brightest galaxies in the vicinity of ours, only surpassed by the Andromeda Galaxy and the Sombrero Galaxy[) and the companion galaxies NGC 247, PGC 2881, PGC 2933, Sculptor-dE1, and UGCA 15 form a gravitationally-bound core near the centre of the group. Most other galaxies associated with the Sculptor Group are only weakly gravitationally bound to this core. NGC 253 is about 11.4Mly away.
前に撮影したちょうこくしつ座のNGC253 スターバースト銀河を再現像してみました✨ これからより短時間で明るい写真を撮ることができそうです❗️ #NGC253 #銀河 #星雲 #astrophoto https://www.instagram.com/p/BrWQPvrlfZT/?utm_source=ig_tumblr_share&igshid=1n1w8ijijf2sy
この長細い形の天体はNGC253、ちょうこくしつ座の銀河です！ 渦巻銀河を横から見てるような形になるそうで、ここでは爆発的な星形成が行われているそうです。そういった銀河をスターバースト銀河と呼びます。 思ったより大きく、明るく写ってくれる銀河でこの写真も800mmで正方形にしただけで縦横のトリミングは殆どしていません。 まだまだ知らない銀河が沢山あります！ #ちょうこくしつ座 #銀河 #NGC253 #天体写真 #天体観測 https://www.instagram.com/p/Bosc5IDArIl/?utm_source=ig_tumblr_share&igshid=1pjy1a4tmlcf1
NGC 253 - Dusty Island Universe
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20161001 NGC253 Sculptor Galaxy Core Lum by Roger Hutchinson Via Flickr: NGC253 The Sculptor Galaxy imaged using iTelescope T9 at SSO 30 minutes luminance Processed using MaximDL & Photoshop CC
NGC 253
NGC 253 or the Silver Dollar Galaxy is a spiral galaxy located about 10 million light years away towards the constellation Sculptor. It is the largest of the Sculptor Group of galaxies, the closest galaxy group to our own Local Group, at 70,000 light years across, and also one of the brightest spiral galaxies visible.
NGC 253 contains a very high amount of dust, with clouds surrounding the galaxy as well as buried in the spiral arms. This dust fuels a high rate of star formation, making NGC 253 a starburst galaxy. The galaxy is also known as a strong X-ray and gamma ray emitter, probably due to large black holes near its center.
Image and information from NASA.
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