03337+5752 CHR 117 (HD 21794)
03h 33m 41.23s +57° 52' 07.1" P.A. 259.00 sep 0.1 mag 6.36,6.60 Sp F7V dist. 66.93 pc (218.33 l.y.)
Coord 2000 |
03337+5752 |
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Discov num |
CHR 117 |
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Comp |
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Coord arcsec 2000 |
03 33 41.23 +57 52 07.1 |
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Date first |
1985 |
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Date last |
2009 |
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Obs |
22 |
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Pa first |
138 |
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Pa last |
259.1 |
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P.A. Now (θ) |
241° |
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Sep first |
0.1 |
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Sep last |
0.142 |
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Sep. Now (ρ) |
0.137" |
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Mag pri |
6.36 |
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Mag sec |
6.60 |
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delta mag (ΔM) |
0.24 |
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Spectral class |
F7V (yellow-white) |
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Pri motion ra |
+007 |
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Sec motion ra |
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Pri motion dec |
+040 |
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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
Name |
HD 21794 |
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Constellation |
Camelopardalis |
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SAO |
24098 |
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HIP |
16602 |
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Tycho2 |
3724-01137-1 |
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Gaia DR2 |
449812375885626496 |
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HD |
21794 |
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HR |
1071 |
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GC |
4226 |
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BD |
BD+57 730 |
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FK5 |
2252 |
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Distance |
66.93 |
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Distance ly |
218.33 |
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ORBITAL ELEMENTS
Period (P) | 14.47y | ± 0.07 |
Periastron (T) | 1990.15y | ± 0.03 |
Semi-major axis (a) | 0.12a | ± 0.001 |
Eccentricity (e) | 0.35 | ± 0.01 |
Inclination (i) | 46° | ± 1 |
Longitude of periastron (ω) | 236° | ± 1 |
Node (Ω) | 235° | ± 1 |
Notes | n | |
Reference | Bag2002 | |
Equinox | | |
Last observation | 1998 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
327.4 |
0.102 |
2001 |
350.9 |
0.098 |
2002 |
15.5 |
0.097 |
2003 |
40.6 |
0.094 |
2004 |
71.3 |
0.078 |
2005 |
126.2 |
0.057 |
2006 |
188.4 |
0.074 |
2007 |
217.6 |
0.107 |
2008 |
234.1 |
0.130 |
2009 |
246.7 |
0.141 |
2010 |
258.1 |
0.143 |
2011 |
269.8 |
0.138 |
2012 |
282.9 |
0.128 |
2013 |
298.4 |
0.117 |
2014 |
317.3 |
0.106 |
2015 |
339.6 |
0.099 |
2016 |
3.9 |
0.097 |
2017 |
28.6 |
0.097 |
2018 |
55.4 |
0.088 |
2019 |
95.7 |
0.065 |
2020 |
163.8 |
0.061 |
2021 |
206.5 |
0.092 |
2022 |
227.1 |
0.121 |
2023 |
241.0 |
0.137 |
2024 |
252.7 |
0.143 |
2025 |
264.2 |
0.141 |
2026 |
276.5 |
0.133 |
2027 |
290.7 |
0.122 |
2028 |
308.0 |
0.111 |
2029 |
328.7 |
0.102 |
2030 |
352.4 |
0.098 |
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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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