2004A&A...418L..31M


Query : 2004A&A...418L..31M

2004A&A...418L..31M - Astronomy and Astrophysics, volume 418, L31-34 (2004/5-2)

The distance to the Pleiades from orbital solution of the double-lined eclipsing binary HD 23642.

MUNARI U., DALLAPORTA S., SIVIERO A., SOUBIRAN C., FIORUCCI M. and GIRARD P.

Abstract (from CDS):

Combining precise B, V photometry and radial velocities, we have been able to derive a firm orbital solution and accurate physical parameters for the newly discovered eclipsing binary HD 23642 in the Pleiades open cluster. The resulting distance to the binary and therefore to the cluster is 132±2pc. This closely confirms the distance modulus obtained by classical main sequence fitting methods (m-M=5.60 or 132pc), moving cluster techniques and the astrometric orbit of Atlas. This is the first time the distance to a member of the Pleiades is derived by orbital solution of a double-lined eclipsing binary, and it is intended to contribute to the ongoing discussion about the discordant Hipparcos distance to the cluster.

Abstract Copyright:

Journal keyword(s): stars: binaries: eclipsing - stars: distances - stars: fundamental parameters - stars: individual: HD 23642 - stars: HR and C-M diagrams - Galaxy: open clusters and associations: individual: Pleiades

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 Cl Melotte 22 OpC 03 46 24 +24 06.8           ~ 3184 0
2 HD 23568 ** 03 46 59.3943532032 +24 31 12.448365564   6.83 6.82   6.76 B9.5Van 136 0
3 V* V1229 Tau EB* 03 47 29.4536404848 +24 17 18.019635504   6.87 6.81   6.74 A0VpSi+Am 187 0
4 HD 23763 * 03 48 30.0969016008 +24 20 43.894342464   7.08 6.96   6.79 A2V 118 0
5 * 27 Tau SB* 03 49 09.7425852 +24 03 12.300277 3.18 3.54 3.63 3.62 3.68 B8III 376 0

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2022.05.24-11:14:44

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