13539-1440 RST 3852 (HD 121136)
13h 53m 51.68s -14° 39' 50.8" P.A. 334.00 sep 0.2 mag 7.85,8.92 Sp F0/2V dist. 131.58 pc (429.21 l.y.)
Coord 2000 |
13539-1440 |
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Discov num |
RST3852 |
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Comp |
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Coord arcsec 2000 |
13 53 51.68 -14 39 50.8 |
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Date first |
1937 |
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Date last |
2018 |
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Obs |
32 |
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Pa first |
140 |
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Pa last |
333.6 |
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P.A. Now (θ) |
325.7° |
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Sep first |
0.3 |
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Sep last |
0.249 |
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Sep. Now (ρ) |
0.277" |
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Mag pri |
7.85 |
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Mag sec |
8.92 |
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delta mag (ΔM) |
1.07 |
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Spectral class |
F0/2V (yellow-white) |
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Pri motion ra |
+021 |
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Sec motion ra |
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Pri motion dec |
-018 |
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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 121136 |
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Constellation |
Virgo |
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SAO |
158220 |
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HIP |
67850 |
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Tycho2 |
5559-00643-1 |
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Gaia DR2 |
6302015585120003712 |
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HD |
121136 |
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BD |
BD-13 3786 |
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Distance |
131.58 |
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Distance ly |
429.21 |
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ORBITAL ELEMENTS
Period (P) | 95y | |
Periastron (T) | 1985.8y | |
Semi-major axis (a) | 0.225a | |
Eccentricity (e) | 0.278 | |
Inclination (i) | 128.9° | |
Longitude of periastron (ω) | 31.2° | |
Node (Ω) | 150.6° | |
Notes | n | |
Reference | Hrt2010a | |
Equinox | 2000 | |
Last observation | 2009 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
23.1 |
0.144 |
2001 |
17.9 |
0.153 |
2002 |
13.2 |
0.162 |
2003 |
9.0 |
0.170 |
2004 |
5.2 |
0.179 |
2005 |
1.8 |
0.188 |
2006 |
358.6 |
0.197 |
2007 |
355.8 |
0.205 |
2008 |
353.1 |
0.213 |
2009 |
350.7 |
0.220 |
2010 |
348.4 |
0.228 |
2011 |
346.2 |
0.234 |
2012 |
344.1 |
0.240 |
2013 |
342.2 |
0.246 |
2014 |
340.3 |
0.251 |
2015 |
338.5 |
0.256 |
2016 |
336.8 |
0.260 |
2017 |
335.1 |
0.264 |
2018 |
333.5 |
0.268 |
2019 |
331.9 |
0.270 |
2020 |
330.3 |
0.273 |
2021 |
328.7 |
0.275 |
2022 |
327.2 |
0.276 |
2023 |
325.7 |
0.277 |
2024 |
324.2 |
0.278 |
2025 |
322.7 |
0.278 |
2026 |
321.2 |
0.277 |
2027 |
319.7 |
0.277 |
2028 |
318.2 |
0.276 |
2029 |
316.7 |
0.274 |
2030 |
315.1 |
0.272 |
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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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