12194+1744 A 2059 (HD 107169)
12h 19m 22.27s +17° 43' 43.6" P.A. 43.00 sep 0.5 mag 8.33,10.22 Sp F5 dist. 77.34 pc (252.28 l.y.)
Coord 2000 |
12194+1744 |
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Discov num |
A 2059 |
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Comp |
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Coord arcsec 2000 |
12 19 22.27 +17 43 43.6 |
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Date first |
1909 |
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Date last |
2018 |
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Obs |
42 |
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Pa first |
314 |
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Pa last |
42.6 |
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P.A. Now (θ) |
42.6° |
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Sep first |
0.6 |
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Sep last |
0.49 |
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Sep. Now (ρ) |
0.49" |
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Mag pri |
8.33 |
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Mag sec |
10.22 |
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delta mag (ΔM) |
1.89 |
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Spectral class |
F5 (yellow-white) |
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Pri motion ra |
+027 |
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Sec motion ra |
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Pri motion dec |
-060 |
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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 107169 |
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Constellation |
Coma Berenices |
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SAO |
100040 |
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HIP |
60091 |
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Tycho2 |
1445-00682-1 |
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Gaia DR2 |
3947128511856120448 |
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HD |
107169 |
|
ADS |
8508 |
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BD |
BD+18 2589 |
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Distance |
77.34 |
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Distance ly |
252.28 |
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ORBITAL ELEMENTS
Period (P) | 244.8y | |
Periastron (T) | 2040.96y | |
Semi-major axis (a) | 0.647a | |
Eccentricity (e) | 0.677 | |
Inclination (i) | 60.1° | |
Longitude of periastron (ω) | 82.2° | |
Node (Ω) | 61.1° | |
Notes | | |
Reference | Lin2017a | |
Equinox | 2000 | |
Last observation | 2016 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
24.2 |
0.493 |
2001 |
25.1 |
0.491 |
2002 |
26.1 |
0.490 |
2003 |
27.0 |
0.488 |
2004 |
28.0 |
0.486 |
2005 |
28.9 |
0.484 |
2006 |
29.9 |
0.482 |
2007 |
30.9 |
0.479 |
2008 |
31.9 |
0.477 |
2009 |
32.9 |
0.474 |
2010 |
33.9 |
0.471 |
2011 |
34.9 |
0.468 |
2012 |
35.9 |
0.464 |
2013 |
37.0 |
0.461 |
2014 |
38.1 |
0.457 |
2015 |
39.1 |
0.452 |
2016 |
40.3 |
0.448 |
2017 |
41.4 |
0.442 |
2018 |
42.6 |
0.437 |
2019 |
43.8 |
0.431 |
2020 |
45.0 |
0.425 |
2021 |
46.3 |
0.418 |
2022 |
47.6 |
0.410 |
2023 |
49.0 |
0.402 |
2024 |
50.4 |
0.393 |
2025 |
51.9 |
0.384 |
2026 |
53.5 |
0.373 |
2027 |
55.1 |
0.362 |
2028 |
56.9 |
0.350 |
2029 |
58.8 |
0.337 |
2030 |
60.9 |
0.322 |
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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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