Messier 1 (M1, NGC 1952) sī chi̍t-ê chhiⁿ-hûn, tī thiⁿ-kiû ê ūi-tì tī Kim-gû-chō.
Quick facts Supernova remnant, Observation data: J2000.0 epoch ...
Crab Nebula| Supernova remnant |
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 Hubble Space Telescope mosaic image assembled from 24 individual Wide Field and Planetary Camera 2 exposures taken in October 1999, January 2000, and December 2000 |
| Observation data: J2000.0 epoch |
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| Right ascension |
05h 34m 31.94s[1] |
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| Declination |
+22° 00′ 52.2″[1] |
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| Distance |
7003650000000000000♠6500±1600 ly (7003200000000000000♠2000±500[2] pc) |
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| Apparent magnitude (V) |
8.4[3] |
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| Apparent dimensions (V) |
420″ × 290″[4][a] |
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| Constellation |
Taurus |
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| Physical characteristics |
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| Radius |
~5.5 ly (~1.7[5] pc) |
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| Absolute magnitude (V) |
7000310000000000000♠−3.1±0.5[b] |
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|
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| Notable features |
Optical pulsar |
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| Designations |
Messier 1, NGC 1952, Taurus A, Sh2-244[1] |
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See also: Lists of nebulae |
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