- Messier 84
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This article is about the galaxy M84. For the Yugoslav tank, see M-84.
Messier 84 
M84. Credit:NOAO.Observation data (J2000 epoch) Constellation Virgo Right ascension 12h 25m 03.7s[1] Declination +12° 53′ 13″[1] Redshift 1060 ± 6 km/s[1] Distance 60 ± 3 Mly (18.4 ± 0.9 Mpc)[2] Type E1[1] Apparent dimensions (V) 6′.5 × 5′.6[1] Apparent magnitude (V) 10.1[1] Other designations NGC 4374,[1] UGC 7494,[1] PGC 40455,[1] VCC 763[1] See also: Galaxy, List of galaxies Messier 84 (also known as M84 or NGC 4374) is a lenticular galaxy in the constellation Virgo. M84 is situated in the heavily populated inner core of the Virgo Cluster of galaxies.[3]
Radio observations and Hubble Space Telescope images of M84 have revealed two jets of matter shooting out from the galaxy's center as well as a disk of rapidly rotating gas and stars indicating the presence of a 1.5 ×109 M☉[4] supermassive black hole.
Messier 84 nucleus by HST
Contents
History
Charles Messier discovered Messier 84 on 18 March 1781 in a systematic search for "nebulous objects" in the night sky.[5] The object is the 84th in the Messier Catalogue.
Supernovae
Two supernovae have been observed in M84: SN 1957[6] and SN 1991bg.[7] Possibly, a third, SN 1980I is part of M84 or, alternatively, one of its neighboring galaxies, NGC 4387 and M86.[8]
References
- ^ a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for NGC 4374. http://nedwww.ipac.caltech.edu/. Retrieved 2006-11-14.
- ^ J. L. Tonry, A. Dressler, J. P. Blakeslee, E. A. Ajhar, A. B. Fletcher, G. A. Luppino, M. R. Metzger, C. B. Moore (2001). "The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances". Astrophysical Journal 546 (2): 681–693. arXiv:astro-ph/0011223. Bibcode 2001ApJ...546..681T. doi:10.1086/318301.
- ^ Finoguenov, A.; Jones, C. (2002). "Chandra Observation of Low-Mass X-Ray Binaries in the Elliptical Galaxy M84". Astrophysical Journal 574 (2): 754–761. arXiv:astro-ph/0204046. Bibcode 2002ApJ...574..754F. doi:10.1086/340997.
- ^ Bower, G.A. et al. (1998). "Kinematics of the Nuclear Ionized Gas in the Radio Galaxy M84 (NGC 4374)". Astrophysical Journal 492 (1): 111–114. arXiv:astro-ph/9710264. Bibcode 1998ApJ...492L.111B. doi:10.1086/311109.
- ^ K. G. Jones (1991). Messier's Nebulae and Star Clusters (2nd ed.). Cambridge: Cambridge University Press. ISBN 0-521-37079-5.
- ^ Götz, W. (1958). "Supernova in NGC 4374 (= M 84)". Astronomische Nachrichten 284 (3): 141. Bibcode 1958AN....284..141G. doi:10.1002/asna.19572840308.
- ^ Kosai, H.; Kushida, R.; Kato, T.; Filippenko, A.; Newberg, H.; Kushida; Kato; Filippenko; Newberg (1958). "Supernova 1991bg in NGC 4374". IAU Circ. 5400: 1. Bibcode 1991IAUC.5400....1K.
- ^ Smith, H. A. (1981). "The spectrum of the intergalactic supernova 1980I". Astronomical Journal 86: 998–1002. Bibcode 1981AJ.....86..998S. doi:10.1086/112975.
External links
- StarDate: M84 Fact Sheet
- SEDS Lenticular Galaxy M84
- Messier 84 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Virgo constellation Stars Bayer α (Spica) • β (Zavijava) • γ (Porrima) • δ (Auva) • ε (Vindemiatrix) • ζ (Heze) • η (Zaniah) • θ • ι (Syrma) • κ • λ (Khambalia) • μ (Rijl al Awwa) • ν • ξ • ο • π • ρ • σ • τ • υ • φ • χ • ψ • ω • b • c • d¹ • d² • e • f • g • h • i • k • l • m • o • p • q • y • A¹ • A² • MFlamsteed 1 (ω) • 2 (ξ) • 3 (ν) • 4 (A¹) • 5 (β, Zavijava) • 6 (A²) • 7 (b) • 8 (π) • 9 (ο) • 10 • 11 • 12 • 13 • 15 (η, Zaniah) • 16 (c) • 17 • 20 • 21 (q) • 25 (f) • 26 (χ) • 27 • 28 • 29 (γ, Porrima) • 30 (ρ) • 31 (d¹) • 32 (d²) • 33 • 34 • 35 • 37 • 38 • 40 (ψ) • 41 • 43 (δ, Auva) • 44 • 46 • 47 (ε, Vindemiatrix) • 48 • 49 • 50 • 51 (θ) • 53 • 54 • 55 • 56 • 57 • 59 (e) • 60 (σ) • 61 • 62 • 63 • 64 • 65 • 66 • 67 (α, Spica) • 68 (i) • 69 • 70 • 71 • 72 • 73 • ) • 75 • 76 (h) • 77 • ) • 79 (ζ, Heze) • 80 • 82 (m) • 83 • 84 • 85 • 86 • 87 • 89 • 90 (p) • 92 • 93 (τ) • 94 • 95 • 96 • 98 (κ) • 99 (ι, Syrma) • 100 (λ, Khambalia) • 102 (υ) • 104 • 105 (φ) • 106 • 107 (μ, Rijl al Awwa) • 108 • 109 • 110 • 2 SerNearby Ross 128 • Wolf 424 • FL (Wolf 424 B) • GL • Gliese 514 • Gliese 493.1 • Gliese 518 • Gliese 486 • GJ 1154 • 61 • GJ 3820List Galaxy cluster Coordinates:
12h 25m 03.7s, +12° 53′ 13″Messier objects List M1 · M2 · M3 · M4 · M5 · M6 · M7 · M8 · M9 · M10 · M11 · M12 · M13 · M14 · M15 · M16 · M17 · M18 · M19 · M20 · M21 · M22 · M23 · M24 · M25 · M26 · M27 · M28 · M29 · M30 · M31 · M32 · M33 · M34 · M35 · M36 · M37 · M38 · M39 · M40 · M41 · M42 · M43 · M44 · M45 · M46 · M47 · M48 · M49 · M50 · M51 · M52 · M53 · M54 · M55 · M56 · M57 · M58 · M59 · M60 · M61 · M62 · M63 · M64 · M65 · M66 · M67 · M68 · M69 · M70 · M71 · M72 · M73 · M74 · M75 · M76 · M77 · M78 · M79 · M80 · M81 · M82 · M83 · M84 · M85 · M86 · M87 · M88 · M89 · M90 · M91 · M92 · M93 · M94 · M95 · M96 · M97 · M98 · M99 · M100 · M101 · M102 · M103 · M104 · M105 · M106 · M107 · M108 · M109 · M110See also 
Book:Messier objects · 
Category:Messier objects 
Portal:AstronomyCategories:- Lenticular galaxies
- Virgo Cluster
- Virgo constellation
- Messier objects
- NGC objects
- UGC objects
- PGC objects
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