23498+2741 A 424 (HD 223486)
23h 49m 50.48s +27° 40' 50.7" P.A. 165.00 sep 0.2 mag 7.58,8.20 Sp F1V dist. 235.29 pc (767.52 l.y.)
| Coord 2000 |
23498+2741 |
|
Discov num |
A 424 |
|
Comp |
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Coord arcsec 2000 |
23 49 50.48 +27 40 50.7 |
|
| Date first |
1902 |
|
Date last |
2014 |
|
Obs |
89 |
|
| Pa first |
230 |
|
Pa last |
164.6 |
|
P.A. Now (θ) |
182.4° |
|
| Sep first |
0.2 |
|
Sep last |
0.16 |
|
Sep. Now (ρ) |
0.183" |
|
| Mag pri |
7.58 |
|
Mag sec |
8.20 |
|
delta mag (ΔM) |
0.62 |
|
Spectral class |
F1V (yellow-white) |
|
| Pri motion ra |
+058 |
|
Sec motion ra |
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|
| Pri motion dec |
-005 |
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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 223486 |
|
Constellation |
Pegasus |
|
SAO |
91524 |
|
HIP |
117511 |
|
| Tycho2 |
2258-02047-1 |
|
Gaia DR2 |
2866554258178199168 |
|
HD |
223486 |
|
GC |
33067 |
|
| ADS |
17030 |
|
BD |
BD+26 4698 |
|
Distance |
235.29 |
|
Distance ly |
767.52 |
|
ORBITAL ELEMENTS
| Period (P) | 173.05y | |
Periastron (T) | 1934.26y | |
Semi-major axis (a) | 0.255a | |
| Eccentricity (e) | 0.489 | |
Inclination (i) | 65.2° | |
Longitude of periastron (ω) | 283.5° | |
| Node (Ω) | 59.3° | |
Notes | n | |
Reference | Sca2002b | |
| Equinox | | |
Last observation | 1998 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
139.8 |
0.154 |
| 2001 |
141.9 |
0.154 |
| 2002 |
144.0 |
0.154 |
| 2003 |
146.0 |
0.155 |
| 2004 |
148.1 |
0.155 |
| 2005 |
150.2 |
0.155 |
| 2006 |
152.2 |
0.156 |
| 2007 |
154.2 |
0.157 |
| 2008 |
156.2 |
0.158 |
| 2009 |
158.2 |
0.159 |
| 2010 |
160.2 |
0.160 |
| 2011 |
162.1 |
0.161 |
| 2012 |
164.0 |
0.162 |
| 2013 |
165.8 |
0.164 |
| 2014 |
167.7 |
0.165 |
| 2015 |
169.5 |
0.167 |
| 2016 |
171.2 |
0.169 |
| 2017 |
172.9 |
0.171 |
| 2018 |
174.6 |
0.173 |
| 2019 |
176.3 |
0.175 |
| 2020 |
177.9 |
0.177 |
| 2021 |
179.4 |
0.179 |
| 2022 |
180.9 |
0.181 |
| 2023 |
182.4 |
0.183 |
| 2024 |
183.9 |
0.186 |
| 2025 |
185.3 |
0.188 |
| 2026 |
186.7 |
0.190 |
| 2027 |
188.0 |
0.193 |
| 2028 |
189.4 |
0.195 |
| 2029 |
190.6 |
0.198 |
| 2030 |
191.9 |
0.200 |
|
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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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