10264+2545 HDS 1500
10h 26m 21.43s +25° 44' 36.1" P.A. 305.00 sep 0.2 mag 9.29,10.58 Sp G0 dist. 124.84 pc (407.23 l.y.)
Coord 2000 |
10264+2545 |
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Discov num |
HDS1500 |
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Comp |
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Coord arcsec 2000 |
10 26 21.43 +25 44 36.1 |
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Date first |
1991 |
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Date last |
2019 |
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Obs |
8 |
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Pa first |
162 |
|
Pa last |
305.4 |
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P.A. Now (θ) |
305.4° |
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Sep first |
0.2 |
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Sep last |
0.176 |
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Sep. Now (ρ) |
0.176" |
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Mag pri |
9.29 |
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Mag sec |
10.58 |
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delta mag (ΔM) |
1.29 |
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Spectral class |
G0 (yellow) |
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Pri motion ra |
-050 |
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Sec motion ra |
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Pri motion dec |
-048 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Leo |
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HIP |
51094 |
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Tycho2 |
1973-00752-1 |
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Gaia DR2 |
727639001213472128 |
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BD |
BD+26 2085 |
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Distance |
124.84 |
|
Distance ly |
407.23 |
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ORBITAL ELEMENTS
Period (P) | 85y | |
Periastron (T) | 1978.67y | |
Semi-major axis (a) | 0.213a | |
Eccentricity (e) | 0.136 | |
Inclination (i) | 65.2° | |
Longitude of periastron (ω) | 317.6° | |
Node (Ω) | 150.8° | |
Notes | | |
Reference | Tok2019c | |
Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
190.7 |
0.127 |
2001 |
195.9 |
0.120 |
2002 |
201.8 |
0.113 |
2003 |
208.4 |
0.107 |
2004 |
215.7 |
0.102 |
2005 |
223.7 |
0.099 |
2006 |
232.1 |
0.097 |
2007 |
240.6 |
0.097 |
2008 |
249.1 |
0.098 |
2009 |
257.2 |
0.101 |
2010 |
264.6 |
0.106 |
2011 |
271.4 |
0.112 |
2012 |
277.5 |
0.118 |
2013 |
282.9 |
0.126 |
2014 |
287.6 |
0.134 |
2015 |
291.8 |
0.142 |
2016 |
295.6 |
0.150 |
2017 |
298.9 |
0.159 |
2018 |
301.9 |
0.167 |
2019 |
304.7 |
0.175 |
2020 |
307.2 |
0.183 |
2021 |
309.5 |
0.190 |
2022 |
311.6 |
0.197 |
2023 |
313.6 |
0.204 |
2024 |
315.5 |
0.210 |
2025 |
317.2 |
0.215 |
2026 |
318.9 |
0.220 |
2027 |
320.5 |
0.224 |
2028 |
322.1 |
0.227 |
2029 |
323.6 |
0.230 |
2030 |
325.1 |
0.232 |
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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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