Stephans Quintet (bottom left) and the galaxy group NGC 7331 (Fernando Oliveira de Menezes)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: NGC 7317 · NGC 7318 · NGC 7319 · NGC 7320 · NGC 7331 · NGC 7333 · NGC 7335 · NGC 7336 · NGC 7337 · NGC 7338 · NGC 7340 · Stephan's Quintet

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Stephans Quintet (bottom left) and the galaxy group NGC 7331

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Stephans Quintet (bottom left) and the galaxy group NGC 7331

Stephan quintett, formed by the galaxies (NGC 7317, NGC 7318a, NGC 7318b, NGC 7319 and NGC 7320) is located in the lower left corner. These galaxies are part of the Hickson Compact Group, which contains galaxies groups that are likely to merge, maintaining strong interaction between them.

In the upper right corner is the NGC 7331 galaxy, about 40 million light years away. What draws attention to this galaxy is that the nucleus of the galaxy appears to be slightly decentralized, with one side of the disk appearing to extend farther from the nucleus than the opposite side. It is part of the NGC 7331 group, which list four other members, affectionately called "fleas": the lenticular or unbarred spirals NGC 7335 and 7336, the barred spiral galaxy NGC 7337 and the elliptical galaxy NGC 7340.

Equipment

Apo 150mm Scientific Explorer

Qhy 16200a colled

Filter: Planetarium Baader LRGB 2 "

20 x 300 "bin1 L + 17 x 200" bin2 RGB

Electronic Focuser: Moon Lite

Mounting: Ioptron Cem60

Polar alignment: Sharcap

Capture: Sequence Generation Pro

Processing: Photoshop CS6, Pixinisight

Seeing: 4

Transparency: 5

21 to 23 of May of 2020 in Munhoz- MG-Brazil

11 to 13 June 2020 in Jales-SP-Brazil

Original
Final
B

Galaxy - Galáxias

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Status	Advanced success
Started	...
Astrometry.net job	3614879
PixInsight job	M79BC4EF5NE1SFPRNIXQ0KQMVOX5HRYP
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h36m32s.49
RA (top/left)	22h37m31s.63
RA (top/right)	22h38m13s.43
RA (bottom/right)	22h35m32s.61
RA (bottom/left)	22h34m52s.53

Dec (center)	+34°12′36″.0
Dec (top/left)	+33°42′44″.4
Dec (top/right)	+34°37′17″.7
Dec (bottom/right)	+34°42′26″.1
Dec (bottom/left)	+33°47′50″.2

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Stephans Quintet (bottom left) and the galaxy group NGC 7331

Stephans Quintet (bottom left) and the galaxy group NGC 7331

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Stephans Quintet (bottom left) and the galaxy group NGC 7331

Stephans Quintet (bottom left) and the galaxy group NGC 7331

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