Misplaced Pages

NGC 4545
NGC 4545 imaged by SDSS
Observation data (J2000 epoch)
Constellation	Draco
Right ascension	12 34 34.1587
Declination	+63° 31′ 30.63″
Redshift	0.009130
Heliocentric radial velocity	2,737±2 km/s
Distance	137.1 ± 9.6 Mly (42.04 ± 2.95 Mpc)
Group or cluster	NGC 4545 Group (LGG 295)
Apparent magnitude (V)	12.3
Characteristics
Type	SB(s)cd?
Size	~99,700 ly (30.58 kpc) (estimated)
Apparent size (V)	2.5′ × 1.5′
Other designations
IRAS 12323+6348, UGC 7747, MCG +11-15-064, PGC 41838, CGCG 315-047

NGC 4545 is a barred spiral galaxy in the constellation of Draco. Its velocity with respect to the cosmic microwave background is 2,850±8 km/s, which corresponds to a Hubble distance of 137.1 ± 9.6 Mly (42.04 ± 2.95 Mpc). Additionally, 19 non-redshift measurements give a distance of 118.22 ± 5.34 Mly (36.247 ± 1.637 Mpc). It was discovered by German-British astronomer William Herschel on 20 March 1790.

NGC 4545 Group

NGC 4545 is the brightest galaxy in a group of galaxies that bears its name. The NGC 4545 group (also known as LGG 295) has at least six members, including NGC 4510, NGC 4512, NGC 4521, UGC 7848, and UGC 7941.

Supernova

One supernova has been observed in NGC 4545: SN 1940D (type unknown, mag. 15) was discovered by Josef J. Johnson on 25 July 1940.

See also

• List of NGC objects (4001–5000)

References

1. ^ "Results for object NGC 4545". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 18 December 2024.
2. "Distance Results for NGC 4545". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 18 December 2024.
3. Seligman, Courtney. "New General Catalogue Objects: NGC 4545". Celestial Atlas. Retrieved 18 December 2024.
4. Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G.
5. Johnson, Josef J. (1940). "A Supernova in NGC 4545". Publications of the Astronomical Society of the Pacific. 52 (309): 331. Bibcode:1940PASP...52..331J. doi:10.1086/125215.
6. "SN 1940D". Transient Name Server. IAU. Retrieved 18 December 2024.

External links

• Media related to NGC 4545 at Wikimedia Commons
• NGC 4545 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

v t e Constellation of Draco
List of stars in Draco Draco in Chinese astronomy
Stars	Bayer α (Thuban) β (Rastaban) γ (Eltanin) δ (Altais) ε (Tyl) ζ (Aldhibah) η (Athebyne) θ ι (Edasich) κ λ (Giausar) μ (Alrakis) ν (Kuma) ξ (Grumium) ο π ρ σ (Alsafi) τ υ φ χ ψ (Dziban) ψ ω Flamsteed 6 7 (Tianyi) 8 (Taiyi) 10 (i) 15 (A) 18 (g) 19 (h) 26 36 39 (b) 42 (Fafnir) 45 (d) 64 (e) 68 Variable TW AG BY CL CM CX DO V581 HR 3751 4126 4934 5811 6237 6618 (Alruba) 6817 7137 7783 HD 101364 156279 158259 176693 191939 Other 2MASS 1237+6526 2MASS J17554042+6551277 G 240-72 GD 356 Gliese 420 Gliese 625 Gliese 687 GRW +70 8247 Kepler-4 Kepler-10 Kepler-12 Kepler-90 Kepler-296 LP 71-82 Qatar-1 Struve 2398 TOI-1136 WISE 1647+5632
Exoplanets Orbitar HD 139357 b HD 167042 b Hypatia Kepler-4b Kepler-10b c Kepler-12b Kepler-90e f g h i TOI-1452 b TrES-2b
Star clusters LAMOST 1
Nebulae Abell 50 Cat's Eye Nebula
Galaxies	NGC 3147 4121 4125 4236 4319 4345 4513 4589 5678 5777 5866 5866B 5879 5906 5907 5949 5963 5965 5982 5985 6090 6248 6285 6286 6338 6340 6365 6373 6394 6412 6503 6566 6621 6622 6670 6676 6786 6789 Other 1ES 1959+650 3C 249.1 3C 305 3C 319 3C 356 3C 371 3C 390.3 3C 401 4C +72.26 H1821+643 HFLS3 KKR 25 Markarian 876 PGC 39058 S5 1803+784 S5 2007+777 UGC 9391
Galaxy clusters Abell 2218 CL1358+62 Draco Supercluster
Astronomical events Swift J1644+57 SN 2005B SN 2016aps
Category

• NGC objects
• Principal Galaxies Catalogue objects
• IRAS catalogue objects
• UGC objects
• MCG objects
• Draco (constellation)
• Astronomical objects discovered in 1790
• Discoveries by William Herschel
• Barred spiral galaxies