15262-2819 RST 769 (HD 137320)
15h 26m 13.05s -28° 18' 37.7" P.A. 163.00 sep 0.4 mag 10.73,10.94 Sp G5/6V dist. 114.94 pc (374.93 l.y.)
| Coord 2000 |
15262-2819 |
|
Discov num |
RST 769 |
|
Comp |
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Coord arcsec 2000 |
15 26 13.05 -28 18 37.7 |
|
| Date first |
1930 |
|
Date last |
2016 |
|
Obs |
13 |
|
| Pa first |
48 |
|
Pa last |
162.7 |
|
P.A. Now (θ) |
162.7° |
|
| Sep first |
0.3 |
|
Sep last |
0.408 |
|
Sep. Now (ρ) |
0.408" |
|
| Mag pri |
10.73 |
|
Mag sec |
10.94 |
|
delta mag (ΔM) |
0.21 |
|
Spectral class |
G5/6V (yellow) |
|
| Pri motion ra |
+017 |
|
Sec motion ra |
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|
| Pri motion dec |
-020 |
|
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 137320 |
|
Constellation |
Libra |
|
HIP |
75563 |
|
Tycho2 |
6775-00038-1 |
|
| HD |
137320 |
|
CD |
CD-2710367 |
|
CP |
CP-27 5182 |
|
Distance |
114.94 |
|
| Distance ly |
374.93 |
|
ORBITAL ELEMENTS
| Period (P) | 201.47y | |
Periastron (T) | 1977.28y | |
Semi-major axis (a) | 0.392a | |
| Eccentricity (e) | 0.379 | |
Inclination (i) | 141.9° | |
Longitude of periastron (ω) | 238° | |
| Node (Ω) | 163.2° | |
Notes | | |
Reference | Tok2015c | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
198.0 |
0.289 |
| 2001 |
195.6 |
0.296 |
| 2002 |
193.4 |
0.303 |
| 2003 |
191.3 |
0.311 |
| 2004 |
189.3 |
0.318 |
| 2005 |
187.3 |
0.325 |
| 2006 |
185.5 |
0.332 |
| 2007 |
183.7 |
0.338 |
| 2008 |
182.0 |
0.345 |
| 2009 |
180.3 |
0.352 |
| 2010 |
178.7 |
0.358 |
| 2011 |
177.2 |
0.364 |
| 2012 |
175.7 |
0.370 |
| 2013 |
174.3 |
0.376 |
| 2014 |
172.9 |
0.382 |
| 2015 |
171.5 |
0.387 |
| 2016 |
170.2 |
0.393 |
| 2017 |
168.9 |
0.398 |
| 2018 |
167.7 |
0.403 |
| 2019 |
166.5 |
0.407 |
| 2020 |
165.3 |
0.412 |
| 2021 |
164.1 |
0.417 |
| 2022 |
163.0 |
0.421 |
| 2023 |
161.9 |
0.425 |
| 2024 |
160.8 |
0.429 |
| 2025 |
159.7 |
0.433 |
| 2026 |
158.6 |
0.436 |
| 2027 |
157.6 |
0.440 |
| 2028 |
156.6 |
0.443 |
| 2029 |
155.6 |
0.446 |
| 2030 |
154.6 |
0.449 |
|
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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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