Zwicky's Triplet

Minor galaxy cluster in the constellation Hercules

Zwicky's Triplet

Observation data (Epoch )
Constellation(s)	Hercules
Right ascension	16^h 49^m 28.3^s^[1]
Declination	+45° 27′ 40″^[1]
Brightest member	NGC 6241^[2]
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters

Zwicky's Triplet (Arp 103^[3]) is a group of three galaxies visible in the constellation Hercules.^[4]^[5]

The other Zwicky's Triplet

IC 3481 at 12h 32m, +11° 24' (2000.0) in Virgo, which is connected to PGC 41646 ("IC 3481A") as the system Arp 175, but probably not connected to IC 3483, is sometimes called Zwicky's Triplet, but this name is more often applied to the system at 16h 49m, +45° 30' (2000.0) in Hercules.^[6]^[7]

References

^ ^a ^b Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
^ ^a ^b "Zwicky's Triplet". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-01-08.
^ SKY CATALOGUE 2000.0, Volume 2: Double Stars, Variable Stars and Nonstellar Objects (edited by Alan Hirshfeld and Roger W. Sinnott, 1985), page l
^ Steinicke, Wolfgang; Jakiel, Richard (January 4, 2007). Galaxies and How to Observe Them. Springer Science & Business Media. p. 194. ISBN 978-1-84628-699-5.
^ Zombeck, Martin V. (November 9, 2006). Handbook of Space Astronomy and Astrophysics. Cambridge University Press. p. 125. ISBN 978-1-139-45950-1.
^ SKY CATALOGUE 2000.0, Volume 2: Double Stars, Variable Stars and Nonstellar Objects (edited by Alan Hirshfeld and Roger W. Sinnott, 1985), page 362
^ Courtney Seligman, IC 3481

Constellation of Hercules

Stars

Bayer	α (Rasalgethi) β (Kornephoros) γ δ (Sarin) ε ζ η θ ι κ (Marsic) λ (Maasym) μ ν ξ ο π ρ σ τ υ φ χ ψ¹ ψ² ω (Cujam)
Flamsteed	14 29 (h) 30 (g) 42 45 (l) 52 60 68 (u) 69 (e) 72 (w) 89 93 98 99 (b) 102 104 (A) 106 109 110 111 112 32 Oph
Variable	X AC AM BL DI DQ V446 V533 V772 V777 V838 V1674
HR	6669 6697 6806
HD	146389 (Irena) 147506 (Hunor) 149026 (Ogma) 152843 154345 155358 156668 164595 164922
Other	BD +17° 3248 Furuhjelm 46 GD 362 Gliese 623 Gliese 638 Gliese 649 Gliese 686 GJ 3991 HAT-P-14 (Franz) HAT-P-18 HAT-P-67 Hercules X-1 GSC 02620-00648 Ross 640 TrES-3 (Pipoltr) TOI-561 WASP-103 WISE 1738+2732 WISE 1741+2553

Exoplanets	14 Herculis b c HAT-P-14b (Sissi) HD 149026 b (Smertrios) HD 164922 b c TOI-561 b WASP-103b

Star clusters	Messier 13 Messier 92 NGC 6229 Palomar 14

Nebulae	Abell 39 NGC 6210

Galaxies

NGC	6028 6039 6040 6041 6042 6043 6044 6045 6046 6047 6052 6053 6054 6055 6056 6057 6061 6158 6166 6181 6207 6212 6239 6261 6263 6452 6560
Other	2MASX J16270254+4328340 3C 345 A2261-BCG Arp 272 (NGC 6050 and IC 1179) AT2018cow Hercules Dwarf Hercules A IC 1192 IC 4617 Markarian 501 MCG+07-33-027 PGC 2046648 PGC 2387685 QSR J1819+3845 UGC 11105