08017-0836 A 1580 (V635 Mon)
08h 01m 44.53s -08° 35' 35.4" P.A. 299.00 sep 0.3 mag 7.81,8.70 Sp F5+A2 dist. 279.33 pc (911.17 l.y.)
Coord 2000 |
08017-0836 |
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Discov num |
A 1580 |
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Comp |
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Coord arcsec 2000 |
08 01 44.53 -08 35 35.4 |
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Date first |
1907 |
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Date last |
2019 |
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Obs |
28 |
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Pa first |
133 |
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Pa last |
298.5 |
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P.A. Now (θ) |
298.5° |
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Sep first |
0.3 |
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Sep last |
0.315 |
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Sep. Now (ρ) |
0.315" |
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Mag pri |
7.81 |
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Mag sec |
8.70 |
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delta mag (ΔM) |
0.89 |
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Spectral class |
F5+A2 (yellow-white/white) |
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Pri motion ra |
-048 |
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Sec motion ra |
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Pri motion dec |
+013 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Var name |
V635 Mon |
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Constellation |
Monoceros |
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SAO |
135392 |
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HIP |
39264 |
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Tycho2 |
5412-02547-1 |
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Gaia DR2 |
3039664701753343872 |
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HD |
66094 |
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GC |
10884 |
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ADS |
6526 |
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BD |
BD-08 2186 |
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Distance |
279.33 |
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Distance ly |
911.17 |
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ORBITAL ELEMENTS
Period (P) | 399y | |
Periastron (T) | 1965y | |
Semi-major axis (a) | 0.351a | |
Eccentricity (e) | 0.29 | |
Inclination (i) | 38° | |
Longitude of periastron (ω) | 104° | |
Node (Ω) | 117° | |
Notes | n | |
Reference | Hrt2010a | |
Equinox | 2000 | |
Last observation | 2009 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
280.8 |
0.270 |
2001 |
282.0 |
0.272 |
2002 |
283.1 |
0.274 |
2003 |
284.2 |
0.277 |
2004 |
285.3 |
0.279 |
2005 |
286.4 |
0.281 |
2006 |
287.4 |
0.283 |
2007 |
288.5 |
0.285 |
2008 |
289.5 |
0.287 |
2009 |
290.5 |
0.289 |
2010 |
291.5 |
0.290 |
2011 |
292.5 |
0.292 |
2012 |
293.5 |
0.294 |
2013 |
294.4 |
0.296 |
2014 |
295.4 |
0.298 |
2015 |
296.3 |
0.299 |
2016 |
297.2 |
0.301 |
2017 |
298.2 |
0.302 |
2018 |
299.1 |
0.304 |
2019 |
300.0 |
0.305 |
2020 |
300.9 |
0.307 |
2021 |
301.8 |
0.308 |
2022 |
302.6 |
0.310 |
2023 |
303.5 |
0.311 |
2024 |
304.4 |
0.312 |
2025 |
305.2 |
0.314 |
2026 |
306.1 |
0.315 |
2027 |
306.9 |
0.316 |
2028 |
307.7 |
0.317 |
2029 |
308.6 |
0.319 |
2030 |
309.4 |
0.320 |
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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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