Pinwheel Galaxy
spiral galaxy in the constellation Ursa Major
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Summary
Pinwheel Galaxy is an interacting galaxy[1]. It ranks in the top 2% of interacting galaxy entities by monthly Wikipedia readership (1,965 views/month).[2]
Key Facts
- Discoverer or inventor: Pierre Méchain[3]
- Constellation: Ursa Major[4]
- Galaxy morphological type: S_AB[5]
- Part of: M101 Group[6], [CHM2007] HDC 853[7], [CHM2007] LDC 842[8], [T2015] nest 101379[9], [TSK2008] 216[10], [TKT2016] 952[11]
- Commons category: Pinwheel Galaxy[12]
- Child astronomical body: NGC 5474[13]
- Has part(s): SN 2023ixf[14], SN 1909A[15], SN 1951H[16], SN 2011fe[17], M101 OT2015-1[18], SN 1970G[19]
- Catalog code: M 101[20], 2MASX J14031258+5420555[21], UGC 8981[22], IRAS F14012+5434[23], IRAS 14013+5435[24], NGC 5457[25], PGC 50063[26], APG 26[27], PSCz Messier 74+5435[28], SDSS J140312.52+542056.2[29], UZC J140312.5+542056[30], LEDA 50063[31], SPB 243[32], Z 272-21[33]
- Time of discovery or invention: March 27, 1781[34]
- Topic's main category: Category:Pinwheel Galaxy[35]
- Commons gallery: Messier 101[36]
- Redshift: 0.000811[37]
- Apparent magnitude: 8.46[38], 7.86[39], 6.517[40], 5.805[41], 5.512[42], 7.76[43], 10.883[44], 11.237[45], 11.529[46], 12.219[47], 13.671[48]
- Absolute magnitude: -21.6[49]
- Radius: 85,000 light-year[50]
- Radial velocity: 237 kilometre per second[51]
- Distance from Earth: 6.95 megaparsec[52]
- Right ascension: 210.8024292 degree[53]
- Declination: 54.3487500 degree[54]
- Epoch: J2000.0[55]
Why It Matters
Pinwheel Galaxy has Wikipedia articles in 28 language editions, a strong signal of global cultural recognition.[56] It is known by 38 alternative names across languages and contexts.[57]