13583+0213 A 2167 (HD 121908)
13h 58m 20.02s +02° 13' 14.5" P.A. 83.00 sep 0.2 mag 9.27,9.64 Sp G0 dist. 131.23 pc (428.07 l.y.)
| Coord 2000 |
13583+0213 |
|
Discov num |
A 2167 |
|
Comp |
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Coord arcsec 2000 |
13 58 20.02 +02 13 14.5 |
|
| Date first |
1910 |
|
Date last |
2018 |
|
Obs |
50 |
|
| Pa first |
80 |
|
Pa last |
82.6 |
|
P.A. Now (θ) |
76.7° |
|
| Sep first |
0.2 |
|
Sep last |
0.187 |
|
Sep. Now (ρ) |
0.172" |
|
| Mag pri |
9.27 |
|
Mag sec |
9.64 |
|
delta mag (ΔM) |
0.37 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
-074 |
|
Sec motion ra |
|
|
| Pri motion dec |
-044 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 121908 |
|
Constellation |
Virgo |
|
SAO |
120200 |
|
HIP |
68250 |
|
| Tycho2 |
0309-00532-1 |
|
Gaia DR2 |
3664376525404416768 |
|
HD |
121908 |
|
ADS |
9073 |
|
| BD |
BD+02 2752 |
|
Distance |
131.23 |
|
Distance ly |
428.07 |
|
ORBITAL ELEMENTS
| Period (P) | 109.4y | |
Periastron (T) | 1924.8y | |
Semi-major axis (a) | 0.228a | |
| Eccentricity (e) | 0.612 | |
Inclination (i) | 119.5° | |
Longitude of periastron (ω) | 270.3° | |
| Node (Ω) | 246.9° | |
Notes | n | |
Reference | Hrt2010a | |
| Equinox | 2000 | |
Last observation | 2009 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
117.0 |
0.196 |
| 2001 |
115.3 |
0.196 |
| 2002 |
113.5 |
0.197 |
| 2003 |
111.8 |
0.198 |
| 2004 |
110.2 |
0.199 |
| 2005 |
108.5 |
0.200 |
| 2006 |
106.8 |
0.200 |
| 2007 |
105.2 |
0.201 |
| 2008 |
103.5 |
0.201 |
| 2009 |
101.9 |
0.201 |
| 2010 |
100.2 |
0.201 |
| 2011 |
98.6 |
0.201 |
| 2012 |
96.9 |
0.201 |
| 2013 |
95.3 |
0.200 |
| 2014 |
93.6 |
0.199 |
| 2015 |
91.9 |
0.198 |
| 2016 |
90.2 |
0.197 |
| 2017 |
88.4 |
0.195 |
| 2018 |
86.7 |
0.192 |
| 2019 |
84.8 |
0.189 |
| 2020 |
83.0 |
0.186 |
| 2021 |
81.0 |
0.182 |
| 2022 |
78.9 |
0.177 |
| 2023 |
76.7 |
0.172 |
| 2024 |
74.4 |
0.166 |
| 2025 |
71.9 |
0.158 |
| 2026 |
69.1 |
0.150 |
| 2027 |
65.9 |
0.140 |
| 2028 |
62.2 |
0.129 |
| 2029 |
57.7 |
0.116 |
| 2030 |
52.0 |
0.101 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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