06555+3010 STF 981 (HD 50662)
06h 55m 28.54s +30° 09' 42.3" P.A. 119.00 sep 0.9 mag 8.72,8.97 Sp G0 dist. 38.49 pc (125.55 l.y.)
| Coord 2000 |
06555+3010 |
|
Discov num |
STF 981 |
|
Comp |
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Coord arcsec 2000 |
06 55 28.54 +30 09 42.3 |
|
| Date first |
1831 |
|
Date last |
2016 |
|
Obs |
116 |
|
| Pa first |
149 |
|
Pa last |
119.2 |
|
P.A. Now (θ) |
119.2° |
|
| Sep first |
3.7 |
|
Sep last |
0.925 |
|
Sep. Now (ρ) |
0.925" |
|
| Mag pri |
8.72 |
|
Mag sec |
8.97 |
|
delta mag (ΔM) |
0.25 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
+224 |
|
Sec motion ra |
+224 |
|
| Pri motion dec |
-239 |
|
Sec motion dec |
-239 |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 50662 |
|
Constellation |
Gemini |
|
SAO |
59611 |
|
HIP |
33287 |
|
| Tycho2 |
2437-00746-1 |
|
Gaia DR2 |
888540227151910400 |
|
HD |
50662 |
|
GC |
9066 |
|
| ADS |
5570 |
|
BD |
BD+30 1359 |
|
Distance |
38.49 |
|
Distance ly |
125.55 |
|
ORBITAL ELEMENTS
| Period (P) | 1089.7y | |
Periastron (T) | 1016.7y | |
Semi-major axis (a) | 3.35a | |
| Eccentricity (e) | 0.34 | |
Inclination (i) | 102.12° | |
Longitude of periastron (ω) | 129.81° | |
| Node (Ω) | 150.56° | |
Notes | n | |
Reference | Kiy2017 | |
| Equinox | 2000 | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
128.6 |
1.304 |
| 2001 |
128.2 |
1.283 |
| 2002 |
127.7 |
1.261 |
| 2003 |
127.2 |
1.240 |
| 2004 |
126.8 |
1.218 |
| 2005 |
126.3 |
1.197 |
| 2006 |
125.7 |
1.175 |
| 2007 |
125.2 |
1.154 |
| 2008 |
124.6 |
1.132 |
| 2009 |
124.1 |
1.111 |
| 2010 |
123.4 |
1.090 |
| 2011 |
122.8 |
1.068 |
| 2012 |
122.2 |
1.047 |
| 2013 |
121.5 |
1.026 |
| 2014 |
120.8 |
1.005 |
| 2015 |
120.0 |
0.983 |
| 2016 |
119.3 |
0.963 |
| 2017 |
118.5 |
0.942 |
| 2018 |
117.6 |
0.921 |
| 2019 |
116.7 |
0.900 |
| 2020 |
115.8 |
0.880 |
| 2021 |
114.8 |
0.860 |
| 2022 |
113.8 |
0.839 |
| 2023 |
112.8 |
0.820 |
| 2024 |
111.6 |
0.800 |
| 2025 |
110.5 |
0.780 |
| 2026 |
109.2 |
0.761 |
| 2027 |
107.9 |
0.742 |
| 2028 |
106.6 |
0.724 |
| 2029 |
105.1 |
0.706 |
| 2030 |
103.6 |
0.688 |
|
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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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