23088+1058 A 1238 AB
23h 08m 47.77s +10° 57' 31.1" P.A. 70.00 sep 0.2 mag 8.20,8.79 Sp F6V dist. 119.19 pc (388.8 l.y.)
| Coord 2000 |
23088+1058 |
|
Discov num |
A 1238 |
|
Comp |
AB |
|
Coord arcsec 2000 |
23 08 47.77 +10 57 31.1 |
|
| Date first |
1905 |
|
Date last |
2021 |
|
Obs |
87 |
|
| Pa first |
228 |
|
Pa last |
69.5 |
|
P.A. Now (θ) |
64.6° |
|
| Sep first |
0.3 |
|
Sep last |
0.221 |
|
Sep. Now (ρ) |
0.216" |
|
| Mag pri |
8.20 |
|
Mag sec |
8.79 |
|
delta mag (ΔM) |
0.59 |
|
Spectral class |
F6V (yellow-white) |
|
| Pri motion ra |
+048 |
|
Sec motion ra |
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| Pri motion dec |
-008 |
|
Sec motion dec |
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|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
23088+1058 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
108426 |
23 08 48 +10 57 31 |
A 1238 AB |
2021 |
87 |
70 |
0.2 |
8.20 |
8.79 |
0.59 |
Y |
<=== |
| Show |
HD 218550 |
108426 |
23 08 48 +10 57 31 |
A 1238 AB,CD |
2018 |
15 |
292 |
75.2 |
7.67 |
11.16 |
3.49 |
|
|
| Show |
|
|
23 08 43 +10 57 59 |
A 1238 CD |
2016 |
11 |
121 |
1.3 |
11.90 |
11.90 |
0.00 |
|
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Quadruple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
SAO |
108426 |
|
HIP |
114280 |
|
Tycho2 |
1163-01910-1 |
|
| Gaia DR2 |
2811377878477607808 |
|
HD |
218550 |
|
GC |
32236 |
|
ADS |
16539 |
|
| BD |
BD+10 4887 |
|
Distance |
119.19 |
|
Distance ly |
388.8 |
|
ORBITAL ELEMENTS
| Period (P) | 72y | ± 0.29 |
Periastron (T) | 1963.25y | ± 0.21 |
Semi-major axis (a) | 0.247a | ± 0.021 |
| Eccentricity (e) | 0.2773 | ± 0.005 |
Inclination (i) | 153.5° | ± 2.3 |
Longitude of periastron (ω) | 145.7° | ± 5 |
| Node (Ω) | 114.3° | ± 4.8 |
Notes | n | |
Reference | Pru2014 | |
| Equinox | 2000 | |
Last observation | 2008 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
143.6 |
0.306 |
| 2001 |
140.8 |
0.307 |
| 2002 |
138.1 |
0.308 |
| 2003 |
135.3 |
0.308 |
| 2004 |
132.5 |
0.308 |
| 2005 |
129.8 |
0.308 |
| 2006 |
127.0 |
0.306 |
| 2007 |
124.2 |
0.305 |
| 2008 |
121.3 |
0.303 |
| 2009 |
118.4 |
0.300 |
| 2010 |
115.5 |
0.297 |
| 2011 |
112.5 |
0.294 |
| 2012 |
109.4 |
0.290 |
| 2013 |
106.2 |
0.285 |
| 2014 |
102.9 |
0.280 |
| 2015 |
99.5 |
0.274 |
| 2016 |
96.0 |
0.268 |
| 2017 |
92.2 |
0.262 |
| 2018 |
88.3 |
0.255 |
| 2019 |
84.2 |
0.248 |
| 2020 |
79.8 |
0.240 |
| 2021 |
75.1 |
0.232 |
| 2022 |
70.0 |
0.224 |
| 2023 |
64.6 |
0.216 |
| 2024 |
58.8 |
0.208 |
| 2025 |
52.5 |
0.200 |
| 2026 |
45.7 |
0.193 |
| 2027 |
38.4 |
0.186 |
| 2028 |
30.6 |
0.180 |
| 2029 |
22.3 |
0.175 |
| 2030 |
13.6 |
0.172 |
|
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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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