2007A&A...474..515M

Query : 2007A&A...474..515M

2007A&A...474..515M - Astronomy and Astrophysics, volume 474, 515-520 (2007/11-1)

The distance to the Orion Nebula.

MENTEN K.M., REID M.J., FORBRICH J. and BRUNTHALER A.

Abstract (from CDS):

We have used the Very Long Baseline Array to measure the trigonometric parallax of several member stars of the Orion Nebula Cluster showing non-thermal radio emission. We have determined the distance to the cluster to be 414±7pc. Our distance determination allows for an improved calibration of luminosities and ages of young stars. We have also measured the proper motions of four cluster stars which, when accurate radial velocities are measured, will put strong constraints on the origin of the cluster.

Abstract Copyright: ∼

Journal keyword(s): stars: pre-main sequence - radio continuum: stars - techniques: interferometic - astrometry

Simbad objects: 20

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Number of rows : 20
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME Per Arm PoG 03 30 +45.0           ~ 1513 0
2 V* T Tau TT* 04 21 59.4319873992 +19 32 06.432393336   11.22 10.12 9.80   K0IV/Ve 1404 1
3 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2330 0
4 COUP 450 TT* 05 35 11.8040700 -05 21 49.266135           K5V 59 0
5 V* V2254 Ori Or* 05 35 14.11296 -05 22 22.7316           B 315 2
6 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2292 1
7 * tet01 Ori E SB* 05 35 15.7721814864 -05 23 09.889316700           G2IV 97 0
8 * tet01 Ori A Ae* 05 35 15.8254015008 -05 23 14.334699480 5.87 6.75 6.73 6.42 6.21 B0V 485 1
9 * tet01 Ori B EB* 05 35 16.1339860056 -05 23 06.784444248 7.71 8.20 7.96     B1V 367 2
10 * tet01 Ori C SB* 05 35 16.4662967280 -05 23 22.921811880 4.20 5.15 5.13 4.91 4.73 O7Vp 1404 1
11 NAME Ori Trapezium OpC 05 35 16.5 -05 23 14           ~ 1619 1
12 M 42 HII 05 35 17 -05 23.4           ~ 4073 0
13 * tet01 Ori D Y*O 05 35 17.2574479992 -05 23 16.570738104 6.08 6.79 6.70 6.40 6.20 B1.5Vp 328 0
14 NAME Ori Region reg 05 35 17.30 -05 23 28.0           ~ 579 0
15 V* MT Ori Or* 05 35 17.9482748184 -05 22 45.477710148 14.524 13.208 12.229   10.063 K2 104 0
16 NAME Ori Complex Cld 05 35.3 -05 23           ~ 441 0
17 V* V1229 Ori Or* 05 35 18.3705735744 -05 22 37.440079608 15.941 14.257 13.251   10.987 K0 85 0
18 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1098 1
19 NAME NGP reg 12 51 26.275 +27 07 41.70           ~ 1177 0
20 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14393 0

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