1997BaltA...6..137S

Query : 1997BaltA...6..137S

1997BaltA...6..137S - Baltic Astronomy, 6, 137-140 (1997/February-0)

The membership of Upgren one.

STEFANIK R.P., CARUSO J.R., TORRES G., JHA S. and LATHAM D.W.

Abstract (from CDS):

Upgren One is a group of seven F stars which has been proposed as the remnant of a nearby old open cluster. We have monitored the radial velocities of these stars with the CfA digital speedometers. Two of the stars have velocities which are clearly inconsistent with physical association with the other five stars. Those five include a long-period binary and an unusual triple system. The velocity dispersion of the five stars is too large to be bound under reasonable assumptions about the total mass.

Abstract Copyright: ∼

Journal keyword(s): open clusters: individual: Upgren one - stars: radial velocities, binaries

Nomenclature: Table 1: Cl* Upgren 1 SCT NN (Nos 1-17), Nos 15, 16 MISSING

Simbad objects: 16

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Number of rows : 16
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 HD 109462 * 12 34 43.5992171928 +36 19 06.373670268   9.46 9.1     G0 39 0
2 BD+37 2296 PM* 12 34 55.0249045848 +36 24 36.641021976   10.31 9.9     F6V 21 0
3 HD 109509 SB* 12 34 59.3715950400 +36 19 30.955398816   8.56 8.1     F8V 38 0
4 C 1232+365 OpC 12 35 01 +36 22.3     6.3     ~ 16 0
5 HD 109530 * 12 35 10.9401042888 +36 25 31.380726720   7.70 7.3     F2V: 53 0
6 BD+36 2284 PM* 12 35 16.3611406608 +36 07 35.413471596   9.83 9.4     F8V 32 0
7 HD 109542 PM* 12 35 18.8745836280 +36 20 17.776682160   8.58 8.2     F3V 49 0
8 HD 109648 SB* 12 35 59.9179796448 +36 15 28.180878804   9.19 8.8     F5V 62 0
9 Cl* Upgren 1 SCT 14 * 12 36 08.4 +35 57 37           ~ 1 0
10 Cl* Upgren 1 SCT 13 * 12 36 16.3 +35 54 41           ~ 1 0
11 Cl* Upgren 1 SCT 8 * 12 36 52.7 +35 50 58           ~ 1 0
12 Cl* Upgren 1 SCT 9 * 12 37 26.3 +36 06 53           ~ 1 0
13 Cl* Upgren 1 SCT 10 * 12 37 34.7 +35 59 47           ~ 1 0
14 Cl* Upgren 1 SCT 11 * 12 37 48.5 +35 56 31           ~ 1 0
15 Cl* Upgren 1 SCT 12 * 12 38 10.5 +35 58 00           ~ 1 0
16 Cl* Upgren 1 SCT 17 * 12 39 37.1 +36 04 46           ~ 1 0

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