2001A&A...368..572L

Query : 2001A&A...368..572L

2001A&A...368..572L - Astronomy and Astrophysics, volume 368572-579 (2001/3-3)

Multicolour observations of nearby visual double stars. New CCD measurements and orbits.

LAMPENS P. and STRIGACHEV A.

Abstract (from CDS):

We present multicolour CCD observations of nine nearby visual double stars obtained in August and September 1999 with the 1.3-m telescope at Skinakas Observatory. The results consist of relative positions (epochs, angular separations and position angles) and differential BVRI photometry. We confirm the physical association in eight cases. Previously known orbits do not match the new data for three systems. Orbits have been recalculated when sufficient data were available. We principally improve the precision of the known orbits for three binaries and show the acute lack of precision in two other cases. In one case, the components are shown to move apart with a linear relative speed of 0.050''/yr.

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Journal keyword(s): stars: binaries: visual - stars: fundamental parameters - stars: nearby - techniques: photometric - astrometry

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 BD+66 34 ** 00 32 29.43301 +67 14 08.4138           M2V+M3V 123 1
2 BD+66 34A ** 00 32 29.5078336041 +67 14 09.139006503   12.16 10.327     M2V 145 1
3 G 33-35 ** 01 03 14.15642 +20 05 52.2448 14.17 12.955 11.358 10.286 8.967 M3V 50 0
4 PG 0231+051 WD* 02 33 41.3574299856 +05 18 43.649856216 14.562 15.776 16.096 16.267 16.639 DAO.6 149 0
5 Ross 370 ** 03 16 13.81418 +58 10 02.5796   11.96 10.53     M0V 53 0
6 HD 148653 ** 16 28 52.66102 +18 24 50.6185   7.86 7.02 7.55   K3V+K3V 153 0
7 HD 148653A PM* 16 28 52.6610989094 +18 24 50.600119476   8.453 7.59     K3V 38 0
8 HD 148653B PM* 16 28 52.7809537811 +18 24 49.441160630   8.683 7.82     K3V 24 0
9 BD+23 3151A PM* 17 37 48.7002864168 +22 57 20.090682360   11.20 9.93 9.1   M0.5V 61 0
10 HD 186858 ** 19 45 33.52829 +33 36 07.1859   8.67 7.66 7.7   K5V+K5V 131 1
11 HD 331161 ** 19 46 23.92746 +32 01 01.4390           M0.5V+M2.5V 87 0
12 HD 239960 ** 22 27 59.47299 +57 41 45.2325           M3 286 0
13 HD 239960B Er* 22 27 59.7956021455 +57 41 49.746752678           M4V 181 0
14 BD+19 5116 ** 23 31 52.17898 +19 56 14.1505 12.737 11.749 10.165 8.982 7.446 M3.5V 469 0
15 BD+19 5116B PM* 23 31 52.5753377942 +19 56 14.005026315   14.8   12.165   M4.0Ve 222 0

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