12160+0538 STF 1621
12h 15m 58.34s +05° 38' 24.8" P.A. 48.00 sep 1.8 mag 10.22,10.59 Sp K8 dist. 28.99 pc (94.57 l.y.)
Coord 2000 |
12160+0538 |
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Discov num |
STF1621 |
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Comp |
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Coord arcsec 2000 |
12 15 58.34 +05 38 24.8 |
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Date first |
1830 |
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Date last |
2019 |
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Obs |
109 |
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Pa first |
124 |
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Pa last |
47.6 |
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P.A. Now (θ) |
47.6° |
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Sep first |
3.4 |
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Sep last |
1.758 |
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Sep. Now (ρ) |
1.758" |
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Mag pri |
10.22 |
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Mag sec |
10.59 |
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delta mag (ΔM) |
0.37 |
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Spectral class |
K8 (yellow-orange) |
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Pri motion ra |
-320 |
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Sec motion ra |
-320 |
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Pri motion dec |
-066 |
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Sec motion dec |
-066 |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Virgo |
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HIP |
59816 |
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Tycho2 |
0287-00337-1 |
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Gaia DR2 |
3894474759723667200 |
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ADS |
8486 |
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BD |
BD+06 2573 |
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Distance |
28.99 |
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Distance ly |
94.57 |
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ORBITAL ELEMENTS
Period (P) | 1379.8804y | ± 211.4207 |
Periastron (T) | 1973.8179y | ± 0.1918 |
Semi-major axis (a) | 3.9723a | ± 0.35905 |
Eccentricity (e) | 0.90649 | ± 0.01023 |
Inclination (i) | 23.329° | ± 2.938 |
Longitude of periastron (ω) | 99.765° | ± 4.523 |
Node (Ω) | 178.461° | ± 4.706 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
34.2 |
1.205 |
2001 |
35.3 |
1.236 |
2002 |
36.3 |
1.266 |
2003 |
37.3 |
1.297 |
2004 |
38.2 |
1.327 |
2005 |
39.1 |
1.356 |
2006 |
39.9 |
1.386 |
2007 |
40.7 |
1.415 |
2008 |
41.5 |
1.444 |
2009 |
42.3 |
1.472 |
2010 |
43.0 |
1.500 |
2011 |
43.7 |
1.528 |
2012 |
44.4 |
1.556 |
2013 |
45.0 |
1.583 |
2014 |
45.6 |
1.610 |
2015 |
46.2 |
1.637 |
2016 |
46.8 |
1.664 |
2017 |
47.4 |
1.690 |
2018 |
47.9 |
1.716 |
2019 |
48.5 |
1.742 |
2020 |
49.0 |
1.768 |
2021 |
49.5 |
1.793 |
2022 |
50.0 |
1.818 |
2023 |
50.5 |
1.844 |
2024 |
50.9 |
1.868 |
2025 |
51.4 |
1.893 |
2026 |
51.8 |
1.918 |
2027 |
52.2 |
1.942 |
2028 |
52.7 |
1.966 |
2029 |
53.1 |
1.990 |
2030 |
53.5 |
2.014 |
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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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