10294+1211 HDS 1507 (HD 90823)
10h 29m 25.66s +12° 11' 13.3" P.A. 55.00 sep 0.1 mag 7.69,8.76 Sp F2 dist. 91.16 pc (297.36 l.y.)
| Coord 2000 |
10294+1211 |
|
Discov num |
HDS1507 |
|
Comp |
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Coord arcsec 2000 |
10 29 25.66 +12 11 13.3 |
|
| Date first |
1991 |
|
Date last |
2021 |
|
Obs |
18 |
|
| Pa first |
44 |
|
Pa last |
55.2 |
|
P.A. Now (θ) |
68.6° |
|
| Sep first |
0.1 |
|
Sep last |
0.12 |
|
Sep. Now (ρ) |
0.114" |
|
| Mag pri |
7.69 |
|
Mag sec |
8.76 |
|
delta mag (ΔM) |
1.07 |
|
Spectral class |
F2 (yellow-white) |
|
| Pri motion ra |
-069 |
|
Sec motion ra |
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|
| Pri motion dec |
-009 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 90823 |
|
Constellation |
Leo |
|
SAO |
99157 |
|
HIP |
51360 |
|
| Tycho2 |
0841-00115-1 |
|
Gaia DR2 |
3883797608464273024 |
|
HD |
90823 |
|
BD |
BD+12 2217 |
|
| Distance |
91.16 |
|
Distance ly |
297.36 |
|
ORBITAL ELEMENTS
| Period (P) | 15.59y | ± 0.11 |
Periastron (T) | 2011.79y | ± 0.36 |
Semi-major axis (a) | 0.0984a | ± 0.0021 |
| Eccentricity (e) | 0.372 | ± 0.032 |
Inclination (i) | 24.6° | ± 6.9 |
Longitude of periastron (ω) | 286.3° | ± 24.7 |
| Node (Ω) | 277° | ± 29.7 |
Notes | | |
Reference | Tok2017b | |
| Equinox | 2000 | |
Last observation | | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
328.3 |
0.103 |
| 2001 |
344.7 |
0.111 |
| 2002 |
359.1 |
0.117 |
| 2003 |
12.4 |
0.121 |
| 2004 |
24.9 |
0.124 |
| 2005 |
37.1 |
0.124 |
| 2006 |
49.6 |
0.122 |
| 2007 |
62.8 |
0.117 |
| 2008 |
77.6 |
0.108 |
| 2009 |
95.7 |
0.096 |
| 2010 |
120.6 |
0.079 |
| 2011 |
160.2 |
0.061 |
| 2012 |
217.0 |
0.058 |
| 2013 |
264.0 |
0.071 |
| 2014 |
294.9 |
0.086 |
| 2015 |
317.3 |
0.098 |
| 2016 |
335.3 |
0.107 |
| 2017 |
350.8 |
0.114 |
| 2018 |
4.7 |
0.119 |
| 2019 |
17.6 |
0.123 |
| 2020 |
29.9 |
0.124 |
| 2021 |
42.2 |
0.123 |
| 2022 |
54.9 |
0.120 |
| 2023 |
68.6 |
0.114 |
| 2024 |
84.5 |
0.104 |
| 2025 |
104.7 |
0.089 |
| 2026 |
134.4 |
0.071 |
| 2027 |
182.5 |
0.057 |
| 2028 |
238.7 |
0.062 |
| 2029 |
278.1 |
0.077 |
| 2030 |
304.8 |
0.091 |
| 2031 |
325.1 |
0.102 |
| 2032 |
341.9 |
0.110 |
| 2033 |
356.6 |
0.116 |
| 2034 |
10.1 |
0.121 |
| 2035 |
22.7 |
0.123 |
| 2036 |
34.9 |
0.124 |
| 2037 |
47.3 |
0.122 |
| 2038 |
60.3 |
0.118 |
| 2039 |
74.7 |
0.110 |
| 2040 |
92.0 |
0.098 |
| 2041 |
115.3 |
0.082 |
| 2042 |
151.5 |
0.064 |
| 2043 |
206.6 |
0.057 |
| 2044 |
257.0 |
0.068 |
| 2045 |
290.1 |
0.083 |
| 2046 |
313.7 |
0.096 |
| 2047 |
332.3 |
0.105 |
| 2048 |
348.2 |
0.113 |
| 2049 |
2.3 |
0.118 |
| 2050 |
15.3 |
0.122 |
|
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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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