13207+0257 STF 1734 (HD 115995)
13h 20m 41.57s +02° 56' 31.9" P.A. 173.00 sep 1.1 mag 6.77,7.29 Sp A3V dist. 135.5 pc (442 l.y.)
Coord 2000 |
13207+0257 |
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Discov num |
STF1734 |
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Comp |
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Coord arcsec 2000 |
13 20 41.57 +02 56 31.9 |
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Date first |
1830 |
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Date last |
2017 |
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Obs |
197 |
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Pa first |
198 |
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Pa last |
173.1 |
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P.A. Now (θ) |
173.1° |
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Sep first |
0.7 |
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Sep last |
1.069 |
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Sep. Now (ρ) |
1.069" |
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Mag pri |
6.77 |
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Mag sec |
7.29 |
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delta mag (ΔM) |
0.52 |
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Spectral class |
A3V (white) |
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Pri motion ra |
-060 |
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Sec motion ra |
-060 |
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Pri motion dec |
-012 |
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Sec motion dec |
-012 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 115995 |
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Constellation |
Virgo |
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SAO |
119889 |
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HIP |
65119 |
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Tycho2 |
0303-01045-1 |
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Gaia DR2 |
3715515292249335424 |
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HD |
115995 |
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HR |
5031 |
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GC |
18050 |
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ADS |
8864 |
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BD |
BD+03 2758 |
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Distance |
135.5 |
|
Distance ly |
442 |
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ORBITAL ELEMENTS
Period (P) | 973.8333y | ± 439.7244 |
Periastron (T) | 2119.6129y | ± 53.5238 |
Semi-major axis (a) | 1.46098a | ± 0.60774 |
Eccentricity (e) | 0.61244 | ± 0.31005 |
Inclination (i) | 106.766° | ± 6.565 |
Longitude of periastron (ω) | 87.57° | ± 32.025 |
Node (Ω) | 166.63° | ± 12.712 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
176.3 |
1.121 |
2001 |
176.2 |
1.120 |
2002 |
176.0 |
1.118 |
2003 |
175.9 |
1.116 |
2004 |
175.7 |
1.114 |
2005 |
175.6 |
1.112 |
2006 |
175.4 |
1.110 |
2007 |
175.3 |
1.108 |
2008 |
175.2 |
1.106 |
2009 |
175.0 |
1.103 |
2010 |
174.9 |
1.101 |
2011 |
174.7 |
1.099 |
2012 |
174.6 |
1.096 |
2013 |
174.4 |
1.094 |
2014 |
174.3 |
1.091 |
2015 |
174.1 |
1.088 |
2016 |
174.0 |
1.085 |
2017 |
173.8 |
1.082 |
2018 |
173.6 |
1.080 |
2019 |
173.5 |
1.077 |
2020 |
173.3 |
1.073 |
2021 |
173.2 |
1.070 |
2022 |
173.0 |
1.067 |
2023 |
172.9 |
1.064 |
2024 |
172.7 |
1.060 |
2025 |
172.5 |
1.057 |
2026 |
172.4 |
1.053 |
2027 |
172.2 |
1.049 |
2028 |
172.1 |
1.045 |
2029 |
171.9 |
1.041 |
2030 |
171.7 |
1.037 |
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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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