16285-2423 GHE 24
16h 28m 32.69s -24° 22' 45.0" P.A. 234.00 sep 0.0 mag 7.20,8.40 Sp G7
Coord 2000 |
16285-2423 |
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Discov num |
GHE 24 |
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Comp |
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Coord arcsec 2000 |
16 28 32.69 -24 22 45.0 |
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Date first |
1990 |
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Date last |
2012 |
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Obs |
7 |
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Pa first |
227 |
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Pa last |
233.5 |
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P.A. Now (θ) |
233.5° |
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Sep first |
0.1 |
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Sep last |
0.049 |
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Sep. Now (ρ) |
0.049" |
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Mag pri |
7.20 |
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Mag sec |
8.40 |
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delta mag (ΔM) |
1.2 |
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Spectral class |
G7 (yellow) |
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Pri motion ra |
-018 |
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Sec motion ra |
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Pri motion dec |
-021 |
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Sec motion dec |
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Notes |
O
K
(Orbital solution, K-band or other infrared magnitudes) |
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Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Ophiuchus |
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Gaia DR2 |
6049107428032112384 |
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ORBITAL ELEMENTS
Period (P) | 23.2y | ± 1.1 |
Periastron (T) | 2002.6y | ± 7.7 |
Semi-major axis (a) | 0.048a | ± 0.42 |
Eccentricity (e) | 0.26 | ± 0.73 |
Inclination (i) | 130° | ± 37 |
Longitude of periastron (ω) | 67° | ± 46 |
Node (Ω) | 90° | ± 43 |
Notes | | |
Reference | Sfr2018 | |
Equinox | 2000 | |
Last observation | 2012 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
88.8 |
0.040 |
2001 |
73.4 |
0.036 |
2002 |
51.9 |
0.029 |
2003 |
18.4 |
0.024 |
2004 |
338.5 |
0.025 |
2005 |
309.7 |
0.032 |
2006 |
291.9 |
0.039 |
2007 |
279.6 |
0.046 |
2008 |
269.9 |
0.050 |
2009 |
261.4 |
0.052 |
2010 |
253.3 |
0.052 |
2011 |
245.1 |
0.051 |
2012 |
236.4 |
0.049 |
2013 |
226.8 |
0.047 |
2014 |
215.8 |
0.043 |
2015 |
203.2 |
0.041 |
2016 |
189.0 |
0.039 |
2017 |
173.6 |
0.038 |
2018 |
157.9 |
0.038 |
2019 |
142.9 |
0.039 |
2020 |
129.0 |
0.041 |
2021 |
116.2 |
0.042 |
2022 |
104.0 |
0.043 |
2023 |
91.4 |
0.041 |
2024 |
76.8 |
0.037 |
2025 |
57.0 |
0.030 |
2026 |
26.2 |
0.024 |
2027 |
346.0 |
0.024 |
2028 |
314.4 |
0.030 |
2029 |
294.9 |
0.038 |
2030 |
281.8 |
0.044 |
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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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