09393-1013 RST 3652
09h 39m 18.12s -10° 12' 40.2" P.A. 101.00 sep 0.6 mag 10.73,10.79 Sp K5V
Coord 2000 |
09393-1013 |
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Discov num |
RST3652 |
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Comp |
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Coord arcsec 2000 |
09 39 18.12 -10 12 40.2 |
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Date first |
1938 |
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Date last |
2019 |
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Obs |
11 |
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Pa first |
295 |
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Pa last |
100.7 |
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P.A. Now (θ) |
100.7° |
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Sep first |
1.1 |
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Sep last |
0.596 |
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Sep. Now (ρ) |
0.596" |
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Mag pri |
10.73 |
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Mag sec |
10.79 |
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delta mag (ΔM) |
0.06 |
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Spectral class |
K5V (yellow-orange) |
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Pri motion ra |
+028 |
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Sec motion ra |
+028 |
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Pri motion dec |
-042 |
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Sec motion dec |
-042 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Hydra |
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HIP |
47386 |
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Tycho2 |
5465-00983-1 |
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BD |
BD-09 2895 |
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ORBITAL ELEMENTS
Period (P) | 500y | |
Periastron (T) | 2002.254y | |
Semi-major axis (a) | 1.355a | |
Eccentricity (e) | 0.7 | |
Inclination (i) | 113.7° | |
Longitude of periastron (ω) | 96.1° | |
Node (Ω) | 277.7° | |
Notes | | |
Reference | Tok2020e | |
Equinox | | |
Last observation | 2019 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
204.0 |
0.171 |
2001 |
190.3 |
0.164 |
2002 |
176.3 |
0.166 |
2003 |
163.2 |
0.177 |
2004 |
152.1 |
0.194 |
2005 |
143.1 |
0.217 |
2006 |
135.8 |
0.242 |
2007 |
130.0 |
0.269 |
2008 |
125.3 |
0.298 |
2009 |
121.4 |
0.326 |
2010 |
118.1 |
0.354 |
2011 |
115.3 |
0.382 |
2012 |
112.9 |
0.409 |
2013 |
110.7 |
0.435 |
2014 |
108.8 |
0.461 |
2015 |
107.1 |
0.485 |
2016 |
105.6 |
0.508 |
2017 |
104.2 |
0.530 |
2018 |
102.9 |
0.552 |
2019 |
101.7 |
0.572 |
2020 |
100.6 |
0.592 |
2021 |
99.5 |
0.610 |
2022 |
98.5 |
0.628 |
2023 |
97.6 |
0.645 |
2024 |
96.7 |
0.661 |
2025 |
95.9 |
0.676 |
2026 |
95.1 |
0.691 |
2027 |
94.3 |
0.705 |
2028 |
93.5 |
0.718 |
2029 |
92.8 |
0.731 |
2030 |
92.1 |
0.743 |
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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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