09446+6459 CHR 176 (HD 83962)
09h 44m 36.62s +64° 59' 02.6" P.A. 212.00 sep 0.1 mag 6.80,7.20 Sp A3V+A7V dist. 95.42 pc (311.26 l.y.)
Coord 2000 |
09446+6459 |
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Discov num |
CHR 176 |
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Comp |
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Coord arcsec 2000 |
09 44 36.62 +64 59 02.6 |
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Date first |
1988 |
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Date last |
2019 |
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Obs |
18 |
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Pa first |
60 |
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Pa last |
212.2 |
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P.A. Now (θ) |
18.1° |
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Sep first |
0.1 |
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Sep last |
0.063 |
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Sep. Now (ρ) |
0.09" |
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Mag pri |
6.80 |
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Mag sec |
7.20 |
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delta mag (ΔM) |
0.4 |
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Spectral class |
A3V+A7V (white/white) |
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Pri motion ra |
-047 |
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Sec motion ra |
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Pri motion dec |
+025 |
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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 83962 |
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Constellation |
Ursa Major |
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SAO |
14976 |
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HIP |
47791 |
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Tycho2 |
4139-00836-1 |
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Gaia DR2 |
1064771050364196736 |
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HD |
83962 |
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HR |
3859 |
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GC |
13408 |
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BD |
BD+65 731 |
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Distance |
95.42 |
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Distance ly |
311.26 |
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ORBITAL ELEMENTS
Period (P) | 20.73y | ± 0.01 |
Periastron (T) | 1999.78y | ± 0.01 |
Semi-major axis (a) | 114.1m | ± 0.7 |
Eccentricity (e) | 0.373 | ± 0.008 |
Inclination (i) | 76.3° | ± 0.2 |
Longitude of periastron (ω) | 259.7° | ± 0.1 |
Node (Ω) | 22.2° | ± 0.2 |
Notes | | |
Reference | Mit2020 | |
Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
286.7 |
0.017 |
2001 |
4.6 |
0.049 |
2002 |
16.3 |
0.083 |
2003 |
21.9 |
0.104 |
2004 |
26.0 |
0.113 |
2005 |
29.9 |
0.113 |
2006 |
33.9 |
0.107 |
2007 |
38.8 |
0.095 |
2008 |
45.3 |
0.080 |
2009 |
55.0 |
0.064 |
2010 |
71.4 |
0.048 |
2011 |
99.9 |
0.038 |
2012 |
135.4 |
0.039 |
2013 |
160.8 |
0.051 |
2014 |
175.3 |
0.067 |
2015 |
184.3 |
0.082 |
2016 |
190.7 |
0.094 |
2017 |
196.0 |
0.099 |
2018 |
201.2 |
0.094 |
2019 |
208.0 |
0.075 |
2020 |
223.7 |
0.040 |
2021 |
327.6 |
0.021 |
2022 |
9.1 |
0.060 |
2023 |
18.1 |
0.090 |
2024 |
23.1 |
0.108 |
2025 |
27.1 |
0.114 |
2026 |
30.9 |
0.112 |
2027 |
35.2 |
0.104 |
2028 |
40.4 |
0.091 |
2029 |
47.5 |
0.076 |
2030 |
58.6 |
0.059 |
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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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