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

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

2001A&A...368..572L - Astronomy and Astrophysics, volume 368, 572-579 (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.

Abstract Copyright: ∼

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

Simbad objects: 15

Full paper

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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 - 2023	#notes
1	BD+66 34	**	00 32 29.43301	+67 14 08.4138						M2V+M3V	119	1
2	BD+66 34A	Er*	00 32 29.5078336041	+67 14 09.139006503		12.16	10.327			M2V	133	1
3	G 33-35	LM*	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	147	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	146	0
7	HD 148653A	PM*	16 28 52.6610989094	+18 24 50.600119476		8.453	7.59			K3V	35	0
8	HD 148653B	PM*	16 28 52.7809537811	+18 24 49.441160630		8.683	7.82			K3V	22	0
9	BD+23 3151A	PM*	17 37 48.7002864168	+22 57 20.090682360		11.20	9.93	9.1		M0.5V	58	0
10	HD 186858	**	19 45 33.52829	+33 36 07.1859		8.67	7.66	7.7		K5V+K5V	128	1
11	HD 331161	**	19 46 23.92746	+32 01 01.4390						M0.5V+M2.5V	86	0
12	HD 239960	**	22 27 59.47299	+57 41 45.2325						M3	273	0
13	HD 239960B	Er*	22 27 59.7956021455	+57 41 49.746752678						M4V	172	0
14	BD+19 5116	**	23 31 52.17898	+19 56 14.1505	12.737	11.749	10.165	8.982	7.446	M4+M5	447	0
15	BD+19 5116B	Er*	23 31 52.5753377942	+19 56 14.005026315		14.8		12.165		M4.0Ve	200	0

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