|
other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
| Query : 2002PASP..114..224H |
2002PASP..114..224H - Publ. Astron. Soc. Pac., 114, 224-228 (2002/February-0)
A precise orbit determination of χ1 Orionis from astrometric and radial velocity data.
HAN I. and GATEWOOD G.
Abstract (from CDS):
We have derived an accurate orbit of χ1 Orionis (HD 39587, HIP 27913, HR 2047) by combining precise astrometric and radial velocity data. The combined orbital analysis yields P=5156.7±2.5 days, K1=1.885±0.004 km.s–1, α1=94.8±1.6 mas, e=0.451±0.003, and mass ratio (M2/M1) q=0.15±0.005. The mass ratio derived here is among the smallest well-determined ratio for a G-type dwarf primary star. We have also obtained a parallax of χ1 Orionis, 115.93±1.02 mas, in excellent agreement with the Hipparcos value.
Abstract Copyright: ∼
Journal keyword(s): Stars: Binaries: Spectroscopic - Stars: Binaries: Visual - Stars: Individual: Constellation Name: χ1 Orionis - stars: individual (HD 39587)
Nomenclature: Table 1: Gat NNN (No. 1261) added.
Simbad objects: 11
| Number of rows : 11 |
| 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 248756 | * | 05 53 11.3309706408 | +20 15 30.118361508 | 10.16 | 9.91 | A7 | 8 | 0 | |||
| 2 | GAT 900 | * | 05 53 30.4820 | +20 32 13.287 | 10.18 | A2V | 1 | 0 | ||||
| 3 | GAT 901 | * | 05 53 44.3540918448 | +20 20 07.105575120 | 10.23 | G0V | 3 | 0 | ||||
| 4 | GAT 902 | * | 05 54 17.3573957952 | +20 09 27.612843840 | 9.95 | K2III | 1 | 0 | ||||
| 5 | GAT 903 | * | 05 54 19.4890 | +20 33 00.736 | 9.82 | A4V | 1 | 0 | ||||
| 6 | * chi01 Ori | SB* | 05 54 22.9829893 | +20 16 34.222038 | 5.08 | 5.00 | 4.40 | 3.90 | 3.59 | G0V | 895 | 0 |
| 7 | BD+20 1163 | * | 05 54 28.8554073648 | +20 06 07.723318644 | 11.03 | 10.14 | G2III | 4 | 0 | |||
| 8 | BD+20 1169 | * | 05 55 13.8013283952 | +20 09 59.949828972 | 10.50 | 9.57 | G5III | 5 | 0 | |||
| 9 | HD 39727 | * | 05 55 13.9226784528 | +20 27 07.507164312 | 8.84 | 8.37 | F2 | 8 | 0 | |||
| 10 | HD 39785 | SB* | 05 55 37.8435770376 | +20 28 08.327732448 | 9.46 | 7.64 | K5 | 10 | 0 | |||
| 11 | GAT 908 | * | 05 55 41.3900 | +20 19 47.801 | 10.31 | M1III | 1 | 0 |
To bookmark this query, right click on this link: simbad:objects in 2002PASP..114..224H and select 'bookmark this link' or equivalent in the popup menu