09376+1528 A 2479 (HD 83289)
09h 37m 38.81s +15° 27' 30.7" P.A. 191.00 sep 0.4 mag 9.23,9.87 Sp F8 dist. 174.52 pc (569.28 l.y.)
Coord 2000 |
09376+1528 |
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Discov num |
A 2479 |
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Comp |
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Coord arcsec 2000 |
09 37 38.81 +15 27 30.7 |
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Date first |
1912 |
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Date last |
2014 |
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Obs |
19 |
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Pa first |
258 |
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Pa last |
191.4 |
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P.A. Now (θ) |
191.4° |
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Sep first |
0.3 |
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Sep last |
0.412 |
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Sep. Now (ρ) |
0.412" |
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Mag pri |
9.23 |
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Mag sec |
9.87 |
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delta mag (ΔM) |
0.64 |
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Spectral class |
F8 (yellow-white) |
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Pri motion ra |
-008 |
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Sec motion ra |
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Pri motion dec |
-011 |
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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 83289 |
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Constellation |
Leo |
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SAO |
98678 |
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HIP |
47233 |
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Tycho2 |
1410-00770-1 |
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Gaia DR2 |
618835831653987968 |
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HD |
83289 |
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ADS |
7460 |
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BD |
BD+16 2000 |
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Distance |
174.52 |
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Distance ly |
569.28 |
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ORBITAL ELEMENTS
Period (P) | 108y | |
Periastron (T) | 1961y | |
Semi-major axis (a) | 0.23a | |
Eccentricity (e) | 0.24 | |
Inclination (i) | 46.5° | |
Longitude of periastron (ω) | 341° | |
Node (Ω) | 82° | |
Notes | | |
Reference | Hei1978a | |
Equinox | 2000 | |
Last observation | 1977 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
221.0 |
0.223 |
2001 |
223.3 |
0.228 |
2002 |
225.5 |
0.233 |
2003 |
227.7 |
0.238 |
2004 |
229.7 |
0.242 |
2005 |
231.7 |
0.246 |
2006 |
233.6 |
0.251 |
2007 |
235.4 |
0.254 |
2008 |
237.2 |
0.258 |
2009 |
239.0 |
0.262 |
2010 |
240.7 |
0.265 |
2011 |
242.3 |
0.268 |
2012 |
244.0 |
0.271 |
2013 |
245.6 |
0.273 |
2014 |
247.1 |
0.275 |
2015 |
248.7 |
0.277 |
2016 |
250.2 |
0.279 |
2017 |
251.7 |
0.280 |
2018 |
253.2 |
0.281 |
2019 |
254.7 |
0.282 |
2020 |
256.2 |
0.282 |
2021 |
257.6 |
0.282 |
2022 |
259.1 |
0.282 |
2023 |
260.6 |
0.281 |
2024 |
262.1 |
0.280 |
2025 |
263.6 |
0.279 |
2026 |
265.1 |
0.277 |
2027 |
266.7 |
0.275 |
2028 |
268.2 |
0.273 |
2029 |
269.8 |
0.271 |
2030 |
271.5 |
0.268 |
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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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