23502+1940 COU 344 (HD 223523)
23h 50m 09.26s +19° 40' 00.3" P.A. 319.00 sep 0.2 mag 10.04,10.42 Sp G0 dist. 192.31 pc (627.32 l.y.)
| Coord 2000 |
23502+1940 |
|
Discov num |
COU 344 |
|
Comp |
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Coord arcsec 2000 |
23 50 09.26 +19 40 00.3 |
|
| Date first |
1968 |
|
Date last |
2014 |
|
Obs |
38 |
|
| Pa first |
65 |
|
Pa last |
319 |
|
P.A. Now (θ) |
319° |
|
| Sep first |
0.2 |
|
Sep last |
0.175 |
|
Sep. Now (ρ) |
0.175" |
|
| Mag pri |
10.04 |
|
Mag sec |
10.42 |
|
delta mag (ΔM) |
0.38 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
-046 |
|
Sec motion ra |
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|
| Pri motion dec |
-082 |
|
Sec motion dec |
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| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 223523 |
|
Constellation |
Pegasus |
|
SAO |
108861 |
|
HIP |
117531 |
|
| Tycho2 |
1725-01546-1 |
|
Gaia DR2 |
2822453052947105920 |
|
HD |
223523 |
|
BD |
BD+18 5226 |
|
| Distance |
192.31 |
|
Distance ly |
627.32 |
|
ORBITAL ELEMENTS
| Period (P) | 192.72y | |
Periastron (T) | 2017.49y | |
Semi-major axis (a) | 0.239a | |
| Eccentricity (e) | 0.4 | |
Inclination (i) | 137.7° | |
Longitude of periastron (ω) | 236° | |
| Node (Ω) | 160.1° | |
Notes | | |
Reference | Msn2001a | |
| Equinox | 2000 | |
Last observation | 1996 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
351.5 |
0.175 |
| 2001 |
349.2 |
0.173 |
| 2002 |
346.7 |
0.171 |
| 2003 |
344.2 |
0.168 |
| 2004 |
341.6 |
0.166 |
| 2005 |
338.9 |
0.163 |
| 2006 |
336.1 |
0.160 |
| 2007 |
333.2 |
0.157 |
| 2008 |
330.2 |
0.153 |
| 2009 |
327.1 |
0.150 |
| 2010 |
323.8 |
0.146 |
| 2011 |
320.3 |
0.143 |
| 2012 |
316.7 |
0.139 |
| 2013 |
312.8 |
0.135 |
| 2014 |
308.7 |
0.131 |
| 2015 |
304.4 |
0.127 |
| 2016 |
299.8 |
0.124 |
| 2017 |
294.9 |
0.121 |
| 2018 |
289.8 |
0.118 |
| 2019 |
284.5 |
0.115 |
| 2020 |
278.9 |
0.113 |
| 2021 |
273.1 |
0.111 |
| 2022 |
267.2 |
0.110 |
| 2023 |
261.3 |
0.110 |
| 2024 |
255.3 |
0.111 |
| 2025 |
249.4 |
0.112 |
| 2026 |
243.7 |
0.113 |
| 2027 |
238.2 |
0.116 |
| 2028 |
233.0 |
0.119 |
| 2029 |
228.0 |
0.122 |
| 2030 |
223.3 |
0.126 |
|
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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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