22307+1758 COU 234 (HD 213392)
22h 30m 42.61s +17° 58' 28.0" P.A. 5.00 sep 0.2 mag 9.68,9.13 Sp F8 dist. 131.93 pc (430.36 l.y.)
| Coord 2000 |
22307+1758 |
|
Discov num |
COU 234 |
|
Comp |
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Coord arcsec 2000 |
22 30 42.61 +17 58 28.0 |
|
| Date first |
1967 |
|
Date last |
2014 |
|
Obs |
39 |
|
| Pa first |
77 |
|
Pa last |
5.1 |
|
P.A. Now (θ) |
5.1° |
|
| Sep first |
0.2 |
|
Sep last |
0.163 |
|
Sep. Now (ρ) |
0.163" |
|
| Mag pri |
9.68 |
|
Mag sec |
9.13 |
|
delta mag (ΔM) |
0.55 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
+077 |
|
Sec motion ra |
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| Pri motion dec |
+021 |
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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 213392 |
|
Constellation |
Pegasus |
|
SAO |
107969 |
|
HIP |
111125 |
|
| Tycho2 |
1699-00559-1 |
|
Gaia DR2 |
2737747467415920256 |
|
HD |
213392 |
|
BD |
BD+17 4759 |
|
| Distance |
131.93 |
|
Distance ly |
430.36 |
|
ORBITAL ELEMENTS
| Period (P) | 300y | |
Periastron (T) | 1987.56y | |
Semi-major axis (a) | 0.513a | |
| Eccentricity (e) | 0.693 | |
Inclination (i) | 115.3° | |
Longitude of periastron (ω) | 176.2° | |
| Node (Ω) | 133.9° | |
Notes | | |
Reference | Doc2012c | |
| Equinox | 2000 | |
Last observation | 2007 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
249.0 |
0.113 |
| 2001 |
241.3 |
0.113 |
| 2002 |
233.8 |
0.115 |
| 2003 |
226.6 |
0.118 |
| 2004 |
219.9 |
0.122 |
| 2005 |
213.6 |
0.128 |
| 2006 |
208.0 |
0.135 |
| 2007 |
203.0 |
0.143 |
| 2008 |
198.5 |
0.151 |
| 2009 |
194.4 |
0.160 |
| 2010 |
190.9 |
0.170 |
| 2011 |
187.7 |
0.180 |
| 2012 |
184.8 |
0.190 |
| 2013 |
182.3 |
0.200 |
| 2014 |
180.0 |
0.211 |
| 2015 |
177.9 |
0.221 |
| 2016 |
176.0 |
0.232 |
| 2017 |
174.3 |
0.242 |
| 2018 |
172.7 |
0.253 |
| 2019 |
171.2 |
0.264 |
| 2020 |
169.9 |
0.274 |
| 2021 |
168.6 |
0.285 |
| 2022 |
167.5 |
0.295 |
| 2023 |
166.4 |
0.306 |
| 2024 |
165.4 |
0.316 |
| 2025 |
164.4 |
0.326 |
| 2026 |
163.5 |
0.336 |
| 2027 |
162.7 |
0.346 |
| 2028 |
161.9 |
0.356 |
| 2029 |
161.2 |
0.366 |
| 2030 |
160.5 |
0.376 |
|
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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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