11265+0806 A 2575 (HD 99420)
11h 26m 30.78s +08° 05' 41.0" P.A. 49.00 sep 0.4 mag 10.10,10.10 Sp F0
Coord 2000 |
11265+0806 |
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Discov num |
A 2575 |
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Comp |
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Coord arcsec 2000 |
11 26 30.78 +08 05 41.0 |
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Date first |
1913 |
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Date last |
2013 |
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Obs |
20 |
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Pa first |
329 |
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Pa last |
49 |
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P.A. Now (θ) |
49° |
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Sep first |
0.4 |
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Sep last |
0.418 |
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Sep. Now (ρ) |
0.418" |
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Mag pri |
10.10 |
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Mag sec |
10.10 |
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delta mag (ΔM) |
0 |
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Spectral class |
F0 (yellow-white) |
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Pri motion ra |
+005 |
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Sec motion ra |
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Pri motion dec |
+005 |
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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
Name |
HD 99420 |
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Constellation |
Leo |
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SAO |
118861 |
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Tycho2 |
0856-00252-1 |
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Gaia DR2 |
3913748163470735616 |
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HD |
99420 |
|
ADS |
8160 |
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ORBITAL ELEMENTS
Period (P) | 230y | |
Periastron (T) | 2080y | |
Semi-major axis (a) | 0.43a | |
Eccentricity (e) | 0.596 | |
Inclination (i) | 67° | |
Longitude of periastron (ω) | 75.2° | |
Node (Ω) | 128.6° | |
Notes | | |
Reference | USN2002 | |
Equinox | 2000 | |
Last observation | 1995 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
47.0 |
0.252 |
2001 |
48.4 |
0.252 |
2002 |
49.9 |
0.252 |
2003 |
51.3 |
0.252 |
2004 |
52.7 |
0.252 |
2005 |
54.1 |
0.252 |
2006 |
55.6 |
0.252 |
2007 |
57.0 |
0.253 |
2008 |
58.4 |
0.253 |
2009 |
59.8 |
0.254 |
2010 |
61.2 |
0.254 |
2011 |
62.6 |
0.255 |
2012 |
64.0 |
0.256 |
2013 |
65.4 |
0.257 |
2014 |
66.8 |
0.257 |
2015 |
68.2 |
0.259 |
2016 |
69.5 |
0.260 |
2017 |
70.9 |
0.261 |
2018 |
72.2 |
0.262 |
2019 |
73.5 |
0.263 |
2020 |
74.8 |
0.265 |
2021 |
76.1 |
0.266 |
2022 |
77.4 |
0.267 |
2023 |
78.6 |
0.269 |
2024 |
79.9 |
0.270 |
2025 |
81.1 |
0.272 |
2026 |
82.3 |
0.273 |
2027 |
83.6 |
0.275 |
2028 |
84.7 |
0.277 |
2029 |
85.9 |
0.278 |
2030 |
87.1 |
0.280 |
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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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