23480-1930 HDS 3380 (HD 223254)
23h 47m 58.45s -19° 30' 21.1" P.A. 103.00 sep 0.1 mag 10.48,12.53 Sp G3V dist. 134.05 pc (437.27 l.y.)
| Coord 2000 |
23480-1930 |
|
Discov num |
HDS3380 |
|
Comp |
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Coord arcsec 2000 |
23 47 58.45 -19 30 21.1 |
|
| Date first |
1991 |
|
Date last |
2021 |
|
Obs |
10 |
|
| Pa first |
285 |
|
Pa last |
103.2 |
|
P.A. Now (θ) |
103.2° |
|
| Sep first |
0.2 |
|
Sep last |
0.085 |
|
Sep. Now (ρ) |
0.085" |
|
| Mag pri |
10.48 |
|
Mag sec |
12.53 |
|
delta mag (ΔM) |
2.05 |
|
Spectral class |
G3V (yellow) |
|
| Pri motion ra |
+073 |
|
Sec motion ra |
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|
| Pri motion dec |
-104 |
|
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 223254 |
|
Constellation |
Aquarius |
|
HIP |
117377 |
|
Tycho2 |
6407-01094-1 |
|
| Gaia DR2 |
2390472251700457984 |
|
HD |
223254 |
|
BD |
BD-20 6657 |
|
Distance |
134.05 |
|
| Distance ly |
437.27 |
|
ORBITAL ELEMENTS
| Period (P) | 91.3y | |
Periastron (T) | 2020.23y | |
Semi-major axis (a) | 0.188a | |
| Eccentricity (e) | 0.508 | |
Inclination (i) | 42.9° | |
Longitude of periastron (ω) | 20.4° | |
| Node (Ω) | 69.8° | |
Notes | | |
Reference | Tok2021c | |
| Equinox | 2000 | |
Last observation | 2020 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
308.3 |
0.170 |
| 2001 |
311.5 |
0.163 |
| 2002 |
314.9 |
0.157 |
| 2003 |
318.6 |
0.151 |
| 2004 |
322.7 |
0.144 |
| 2005 |
327.1 |
0.138 |
| 2006 |
331.9 |
0.132 |
| 2007 |
337.1 |
0.127 |
| 2008 |
342.8 |
0.121 |
| 2009 |
349.0 |
0.117 |
| 2010 |
355.7 |
0.113 |
| 2011 |
2.9 |
0.109 |
| 2012 |
10.5 |
0.106 |
| 2013 |
18.5 |
0.104 |
| 2014 |
26.8 |
0.102 |
| 2015 |
35.4 |
0.101 |
| 2016 |
44.2 |
0.099 |
| 2017 |
53.2 |
0.098 |
| 2018 |
62.5 |
0.096 |
| 2019 |
72.2 |
0.094 |
| 2020 |
82.6 |
0.091 |
| 2021 |
93.7 |
0.087 |
| 2022 |
105.8 |
0.084 |
| 2023 |
118.7 |
0.081 |
| 2024 |
132.2 |
0.081 |
| 2025 |
145.5 |
0.082 |
| 2026 |
158.0 |
0.086 |
| 2027 |
169.2 |
0.092 |
| 2028 |
178.8 |
0.099 |
| 2029 |
187.1 |
0.108 |
| 2030 |
194.0 |
0.117 |
|
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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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