NGC 5784 - Misplaced Pages

Galaxy in the constellation Boötes

NGC 5784
The lenticular galaxy NGC 5784
Observation data (J2000 epoch)
Constellation	Boötes
Right ascension	14 54 16.4726
Declination	+42° 33′ 28.356″
Redshift	0.017912
Heliocentric radial velocity	5370 ± 16 km/s
Distance	264.2 ± 18.5 Mly (81.01 ± 5.68 Mpc)
Apparent magnitude (V)	12.4
Characteristics
Type	S0
Size	~149,400 ly (45.82 kpc) (estimated)
Apparent size (V)	1.9′ × 1.8′
Other designations
IRAS 14524+4245, 2MASX J14541645+4233279, UGC 9592, MCG +07-31-006, PGC 53265, CGCG 221-009

NGC 5784 is a lenticular galaxy in the constellation of Boötes. Its velocity with respect to the cosmic microwave background is 5493 ± 18 km/s, which corresponds to a Hubble distance of 81.01 ± 5.68 Mpc (∼264 million light-years). It was discovered by German-British astronomer William Herschel on 9 April 1787.

Supernovae

Two supernovae have been observed in NGC 5784:

SN 2018mef (type Ia, mag. 17.52) was discovered by the Zwicky Transient Facility on 7 June 2018.
SN 2023bch (type Ia, mag. 15.4) was discovered by ASAS-SN on 30 January 2023.

According to Abraham Mahtessian, NGC 5784 is part of the seven member NGC 5739 group (also known as 234). The other six galaxies are: NGC 5598, NGC 5603, NGC 5696, NGC 5739, NGC 5787, and NGC 5860.

^ "Results for object NGC 5784". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 8 August 2024.
Seligman, Courtney. "New General Catalogue Objects: NGC 5784". Celestial Atlas. Retrieved 16 December 2024.
"SN 2018mef". Transient Name Server. IAU. Retrieved 16 December 2024.
"SN 2023bch". Transient Name Server. IAU. Retrieved 16 December 2024.
Mahtessian, A. P. (1998). "Groups of galaxies. III. Some empirical characteristics". Astrophysics. 41 (3): 308–321. doi:10.1007/BF03036100.

v t e Astronomical catalogs
NGC	NGC 5779 NGC 5780 NGC 5781 NGC 5782 NGC 5783 NGC 5784 NGC 5785 NGC 5786 NGC 5787 NGC 5788 NGC 5789

Bayer	α (Arcturus) β (Nekkar) γ (Seginus) δ (Princeps) ε (Izar) ζ η (Muphrid) θ (Asellus Primus) ι (Asellus Secundus) κ (Asellus Tertius) λ (Xuange) μ (Alkalurops) ν ν ξ ο π ρ σ τ υ φ χ ψ ω
Flamsteed	1 2 3 6 (e) 7 9 10 11 12 (d) 13 14 15 18 20 22 (f) 24 (g) 26 31 32 33 34 38 (h, Merga) 39 40 44 (i) 45 (c) 46 (b) 47 (k) 50
Variable	R S T ZZ BL BP BX BY CE CH CI CN CP CR CX CY (101 Vir) DE EK HN HP
HD	118508 118889 122563 125040 125351 (A) 125658 126128 126141 126200 126271 127304 127334 127726 128093 128198 129132 129357 130084 130603 130917 131040 131473 131496 (Arcalís) 132029 132406 132563 134064 134335 135438 135530 135944 136418 (Nikawiy) 141399
Other	CFBDSIR 1458+10 Gliese 526 HAT-P-4 2MASS J15031961+2525196 LHS 2924 PSR J1544+4937 SDSS J1416+1348 SDSS J1433+1011 TVLM 513-46546 WASP-14 ZTF J153932.16+502738.8

Exoplanets	HD 136418 b (Awasis) HAT-P-4b HD 128311 b c HD 132406 b τ Boötis b WASP-14b

Star clusters	NGC 5466

NGC	5008 5248 5251 5490 5500 5508 5514 5523 5529 5533 5535 5539 5544 5545 5548 5557 5559 5562 5579 5582 5601 5609 5613 5614 5615 5624 5630 5641 5653 5665 5676 5682 5683 5714 5752 5753 5754 5755 5820 5821 5829 5837 5886 5896 5929 5930 5966
Numbered	I II III
Other	Arp 302 3C 295 3C 299 3C 303 CEERS-2112 CEERS-93316 CLASS B1359+154 Cloverleaf quasar DDO 190 EGS-zs8-1 EGSY8p7 H1426+428 IC 4461 IC 4462 IC 4481 IC 4516 IRAS 13349+2438 LEDA 2108986 MACS 1423-z7p64 Maisie's Galaxy Markarian 463 MS 1512-cB58 OQ 172 PG 1543+489 PGC 1470080 PKS 1345+125 SDSS J135646.10+102609.0 SDSS J1430+2303 Teacup galaxy UGC 9128 UGC 9425 UGC 9684 UGC 9796 ULAS J1342+0928

Galaxy clusters	Abell 1795 IDCS J1426.5+3508

Astronomical events	GRB 990123 GRB 080319B SCP 06F6 SN 2003fg SN 2005bc SN 2020tlf