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NGC 5907 (Edge-on Spiral Galaxy)


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NGC 5907
Edge-on Spiral Galaxy (エッジオン銀河)
Gx Sc

別名 (Other names)
PGC 54470, UGC 9801, MCG 9-25-40

明るさ (Brightness)
10.4等級

星座 (Constellation)
りゅう座 (Dra) (Draco)


距離 (Distance)
4,000万光年 (40 million light-years)

NGC 5907 is a spiral galaxy located 40 million light years from the Earth in the constellation Draco.

NGC 5907 (Edge-on Spiral Galaxy) : Picture

The Star Streams of NGC 5907
The Star Streams of NGC 5907
(C) R Jay Gabany (Blackbird Observatory) - collaboration; D.Martínez-Delgado(IAC, MPIA), J.Peñarrubia (U.Victoria) I. Trujillo (IAC) S.Majewski (U.Virginia), M.Pohlen (Cardiff)
Grand tidal streams of stars seem to surround galaxy NGC 5907. The arcing structures form tenuous loops extending more than 150,000 light-years from the narrow, edge-on spiral, also known as the Splinter or Knife Edge Galaxy. Recorded only in very deep exposures, the streams likely represent the ghostly trail of a dwarf galaxy -- debris left along the orbit of a smaller satellite galaxy that was gradually torn apart and merged with NGC 5907 over four billion years ago. Ultimately this remarkable discovery image, from a small robotic observatory in New Mexico, supports the cosmological scenario in which large spiral galaxies, including our own Milky Way, were formed by the accretion of smaller ones. NGC 5907 lies about 40 million light-years distant in the northern constellation Draco.

NGC 5907
NGC 5907
(C) R Jay Gabany (Blackbird Observatory)
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NGC 5907 (Edge-on Spiral Galaxy) : Movie

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