15423-1929 HU 653
15h 42m 19.47s -19° 29' 28.6" P.A. 177.00 sep 4.3 mag 8.94,12.90 Sp G8IV dist. 47.51 pc (154.98 l.y.)
| Coord 2000 |
15423-1929 |
|
Discov num |
HU 653 |
|
Comp |
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Coord arcsec 2000 |
15 42 19.47 -19 29 28.6 |
|
| Date first |
1902 |
|
Date last |
2019 |
|
Obs |
13 |
|
| Pa first |
194 |
|
Pa last |
177.4 |
|
P.A. Now (θ) |
177.4° |
|
| Sep first |
3.6 |
|
Sep last |
4.331 |
|
Sep. Now (ρ) |
4.331" |
|
| Mag pri |
8.94 |
|
Mag sec |
12.90 |
|
delta mag (ΔM) |
3.96 |
|
Spectral class |
G8IV (yellow) |
|
| Pri motion ra |
-168 |
|
Sec motion ra |
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|
| Pri motion dec |
-110 |
|
Sec motion dec |
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| Notes |
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Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Libra |
|
SAO |
159450 |
|
HIP |
76917 |
|
Tycho2 |
6193-00108-1 |
|
| Gaia DR2 |
6254010117181952640 |
|
HD |
140072 |
|
ADS |
9748 |
|
BD |
BD-19 4190 |
|
| Distance |
47.51 |
|
Distance ly |
154.98 |
|
SUSPECTED ORBITAL ELEMENTS
| Identifier | 15421-1928 GJ 595 |
| coord_arcsec_2000 | 154206.55-192814.4 |
| Period (P) | 62d | ± 0.1 |
Periastron (T) | 2018.43y | ± 0.22 |
Semi-major axis (a) | 9m | ± 2.2 |
| Eccentricity (e) | 0.02 | ± 0.14 |
Inclination (i) | 94.5° | ± 5.8 |
Longitude of periastron (ω) | 217.9° | ± 112.5 |
| Node (Ω) | 205.9° | ± 13.2 |
Notes | | |
Reference | Hen2018 | |
| Equinox | 2000 | |
Last observation | 2017 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
204.8 |
0.009 |
| 2001-01-01 |
208.0 |
0.008 |
| 2002-01-01 |
215.0 |
0.004 |
| 2003-01-01 |
8.5 |
0.002 |
| 2004-01-01 |
22.7 |
0.007 |
| 2005-01-01 |
26.3 |
0.009 |
| 2006-01-01 |
30.5 |
0.006 |
| 2007-01-01 |
64.3 |
0.001 |
| 2008-01-01 |
198.9 |
0.005 |
| 2009-01-01 |
204.3 |
0.009 |
| 2010-01-01 |
207.4 |
0.009 |
| 2011-01-01 |
212.8 |
0.005 |
| 2012-01-01 |
353.3 |
0.001 |
| 2013-01-01 |
21.8 |
0.007 |
| 2014-01-01 |
25.8 |
0.009 |
| 2015-01-01 |
29.5 |
0.007 |
| 2016-01-01 |
45.6 |
0.002 |
| 2017-01-01 |
196.7 |
0.004 |
| 2018-01-01 |
203.7 |
0.008 |
| 2019-01-01 |
206.8 |
0.009 |
| 2020-01-01 |
211.3 |
0.006 |
| 2021-01-01 |
295.3 |
0.001 |
| 2022-01-01 |
20.7 |
0.006 |
| 2023-01-01 |
25.2 |
0.009 |
| 2024-01-01 |
28.7 |
0.008 |
| 2025-01-01 |
38.7 |
0.003 |
| 2026-01-01 |
193.2 |
0.003 |
| 2027-01-01 |
203.0 |
0.008 |
| 2028-01-01 |
206.3 |
0.009 |
| 2029-01-01 |
210.1 |
0.007 |
| 2030-01-01 |
238.3 |
0.001 |
|
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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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