10292+1009 STT 220 (HD 90791)
10h 29m 11.36s +10° 09' 20.0" P.A. 101.00 sep 0.6 mag 7.51,8.59 Sp F8
Coord 2000 |
10292+1009 |
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Discov num |
STT 220 |
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Comp |
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Coord arcsec 2000 |
10 29 11.36 +10 09 20.0 |
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Date first |
1843 |
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Date last |
2012 |
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Obs |
58 |
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Pa first |
57 |
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Pa last |
101.2 |
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P.A. Now (θ) |
101.2° |
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Sep first |
1.2 |
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Sep last |
0.556 |
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Sep. Now (ρ) |
0.556" |
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Mag pri |
7.51 |
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Mag sec |
8.59 |
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delta mag (ΔM) |
1.08 |
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Spectral class |
F8 (yellow-white) |
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Pri motion ra |
-003 |
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Sec motion ra |
-003 |
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Pri motion dec |
-030 |
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Sec motion dec |
-030 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 90791 |
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Constellation |
Leo |
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SAO |
99153 |
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Tycho2 |
0841-01181-1 |
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Gaia DR2 |
3882183972071569792 |
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HD |
90791 |
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GC |
14396 |
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ADS |
7792 |
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ORBITAL ELEMENTS
Period (P) | 750y | |
Periastron (T) | 2530y | |
Semi-major axis (a) | 1.7a | |
Eccentricity (e) | 0.363 | |
Inclination (i) | 79.2° | |
Longitude of periastron (ω) | 300.6° | |
Node (Ω) | 58.2° | |
Notes | | |
Reference | USN2002 | |
Equinox | 2000 | |
Last observation | 1997 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
104.7 |
0.518 |
2001 |
105.6 |
0.512 |
2002 |
106.5 |
0.506 |
2003 |
107.5 |
0.500 |
2004 |
108.4 |
0.494 |
2005 |
109.4 |
0.488 |
2006 |
110.5 |
0.482 |
2007 |
111.5 |
0.477 |
2008 |
112.6 |
0.472 |
2009 |
113.7 |
0.466 |
2010 |
114.8 |
0.461 |
2011 |
116.0 |
0.456 |
2012 |
117.2 |
0.452 |
2013 |
118.4 |
0.447 |
2014 |
119.6 |
0.443 |
2015 |
120.8 |
0.439 |
2016 |
122.1 |
0.435 |
2017 |
123.4 |
0.431 |
2018 |
124.7 |
0.427 |
2019 |
126.0 |
0.424 |
2020 |
127.4 |
0.421 |
2021 |
128.8 |
0.418 |
2022 |
130.2 |
0.415 |
2023 |
131.6 |
0.413 |
2024 |
133.0 |
0.410 |
2025 |
134.5 |
0.408 |
2026 |
135.9 |
0.407 |
2027 |
137.4 |
0.405 |
2028 |
138.9 |
0.404 |
2029 |
140.4 |
0.403 |
2030 |
141.9 |
0.402 |
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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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