22161-0705 HDS 3158 (HD 211276)
22h 16m 06.58s -07° 05' 26.6" P.A. 140.00 sep 0.4 mag 8.97,10.89 Sp G1.5+K1.5 dist. 62.15 pc (202.73 l.y.)
Coord 2000 |
22161-0705 |
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Discov num |
HDS3158 |
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Comp |
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Coord arcsec 2000 |
22 16 06.58 -07 05 26.6 |
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Date first |
1991 |
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Date last |
2019 |
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Obs |
22 |
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Pa first |
333 |
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Pa last |
140.1 |
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P.A. Now (θ) |
140.1° |
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Sep first |
0.2 |
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Sep last |
0.394 |
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Sep. Now (ρ) |
0.394" |
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Mag pri |
8.97 |
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Mag sec |
10.89 |
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delta mag (ΔM) |
1.92 |
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Spectral class |
G1.5+K1.5 (yellow/yellow-orange) |
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Pri motion ra |
+074 |
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Sec motion ra |
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Pri motion dec |
-347 |
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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 211276 |
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Constellation |
Aquarius |
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SAO |
145984 |
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HIP |
109951 |
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Tycho2 |
5231-00124-1 |
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HD |
211276 |
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BD |
BD-07 5737 |
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Distance |
62.15 |
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Distance ly |
202.73 |
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ORBITAL ELEMENTS
Period (P) | 50.49y | ± 4.32 |
Periastron (T) | 1989.88y | ± 0.16 |
Semi-major axis (a) | 0.2834a | ± 0.02 |
Eccentricity (e) | 0.451 | ± 0.044 |
Inclination (i) | 17.7° | ± 13.6 |
Longitude of periastron (ω) | 45.2° | ± 9.6 |
Node (Ω) | 262° | ± 3 |
Notes | | |
Reference | Tok2018d | |
Equinox | 2000 | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
71.3 |
0.300 |
2001 |
76.4 |
0.315 |
2002 |
81.1 |
0.328 |
2003 |
85.5 |
0.341 |
2004 |
89.5 |
0.352 |
2005 |
93.3 |
0.362 |
2006 |
97.0 |
0.370 |
2007 |
100.5 |
0.378 |
2008 |
103.8 |
0.384 |
2009 |
107.1 |
0.390 |
2010 |
110.2 |
0.394 |
2011 |
113.3 |
0.398 |
2012 |
116.4 |
0.400 |
2013 |
119.4 |
0.402 |
2014 |
122.4 |
0.402 |
2015 |
125.4 |
0.402 |
2016 |
128.5 |
0.400 |
2017 |
131.5 |
0.398 |
2018 |
134.6 |
0.395 |
2019 |
137.8 |
0.391 |
2020 |
141.0 |
0.386 |
2021 |
144.3 |
0.380 |
2022 |
147.7 |
0.373 |
2023 |
151.3 |
0.366 |
2024 |
155.0 |
0.357 |
2025 |
158.9 |
0.348 |
2026 |
163.1 |
0.338 |
2027 |
167.5 |
0.327 |
2028 |
172.2 |
0.316 |
2029 |
177.2 |
0.303 |
2030 |
182.8 |
0.290 |
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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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