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Trumpler 3
Trumpler 3 as seen from the Stellarium Software
Observation data (J2000.0 epoch)
Right ascension	03^h 12^m 00^s
Declination	+63° 15′ 00″
Distance	2250 ly (690 pc)
Apparent magnitude (V)	7.0^[1]
Physical characteristics
Other designations	Cr 36, Cl Harvard 1, C 0307+630
Associations
Constellation	Cassiopeia
See also: Open cluster, List of open clusters

Trumpler 3 is an open cluster located in the constellation Cassiopeia. It has the visual magnitude of 7 and is one of the most famous star clusters in the Trumpler catalogue.

It has two bright stars, TYC 4053-658-1 and TYC 4053-466-1 of apparent magnitudes 10.16 and 10.02, respectively.^[1]

References

^ ^a ^b "SIMBAD Astronomical Database". Basic data for C 0307+630.

External links

Media related to Trumpler 3 at Wikimedia Commons

v t e Trumpler catalogue
Robert Julius Trumpler
List	Tr 1 Tr 2 Tr 3 Tr 4 Tr 5 Tr 6 Tr 7 Tr 8 Tr 9 Tr 10 Tr 11 Tr 12 Tr 13 Tr 14 Tr 15 Tr 16 Tr 17 Tr 18 Tr 19 Tr 20 Tr 21 Tr 22 Tr 23 Tr 24 Tr 25 Tr 26 Tr 27 Tr 28 Tr 29 Tr 30 Tr 31 Tr 32 Tr 33 Tr 34 Tr 35 Tr 36 Tr 37
See also	Open star cluster
Category

Constellation of Cassiopeia

Stars

Bayer	α (Schedar) β (Caph) γ (Navi/Tsih) δ (Ruchbah) ε (Segin) ζ (Fulu) η (Achird) θ (Marfak) ι κ λ μ ν ξ ο π ρ σ τ υ¹ υ² (Castula) φ χ ψ ω
Flamsteed	1 2 4 6 9 10 12 42 47 48 (A) 49 50 54
Variable	R S TZ WZ YZ (21) AO AR PZ V373 V509 V547 V669 V705 V762 V773 V863 V987 V1022 V1405
HR	5 91 144 196 244 273 297 743 932 8832 8853 8881
HD	861 7924 7977 15558 17156 (Nushagak) 240210 240237 240429 240430
Other	BD+60°2522 Gliese 49 IRAS 23304+6147 LS I +61 303 PSR J0205+6449 Tycho G 4U 0142+61 WR 2 WR 3

Exoplanets	HD 7924 b HD 17156 b HD 219134 b c d e (h) f g HD 240210 b HD 240237 b

Star clusters	Messier 52 Messier 103 NGC 103 NGC 110 NGC 129 NGC 133 NGC 136 NGC 146 NGC 189 NGC 225 NGC 358 NGC 366 NGC 381 NGC 433 NGC 436 NGC 457 NGC 559 NGC 637 NGC 654 NGC 659 NGC 663 NGC 1027 NGC 7789 NGC 7790 Trumpler 3

Nebulae

NGC	281 7635
Other	3C 58 Cassiopeia A Heart Nebula IC 289 IC 1805 KjPn 8 LBN 114.55+00.22 Sh 2-185 Westerhout 5

Galaxies

NGC	147 185 278
Other	Andromeda VII 3C 20 3C 35 Dwingeloo 1 Dwingeloo 2 MB 3 IC 10 Maffei 1 Maffei 2 QSO B0153+744

Astronomical events	SN 1181 SN 1572 (B)