23520+1252 A 1247
23h 52m 01.43s +12° 52' 19.2" P.A. 257.00 sep 0.4 mag 9.70,10.00 Sp F8
| Coord 2000 |
23520+1252 |
|
Discov num |
A 1247 |
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Comp |
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Coord arcsec 2000 |
23 52 01.43 +12 52 19.2 |
|
| Date first |
1905 |
|
Date last |
2012 |
|
Obs |
29 |
|
| Pa first |
322 |
|
Pa last |
256.5 |
|
P.A. Now (θ) |
256.5° |
|
| Sep first |
0.2 |
|
Sep last |
0.396 |
|
Sep. Now (ρ) |
0.396" |
|
| Mag pri |
9.70 |
|
Mag sec |
10.00 |
|
delta mag (ΔM) |
0.3 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
-019 |
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Sec motion ra |
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| Pri motion dec |
-019 |
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Sec motion dec |
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| Notes |
N
C
(See Notes, Has orbit and linear solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
Tycho2 |
1177-01365-1 |
|
Gaia DR2 |
2769864786178214016 |
|
ADS |
17060 |
|
ORBITAL ELEMENTS
| Period (P) | 900y | |
Periastron (T) | 2780y | |
Semi-major axis (a) | 0.85a | |
| Eccentricity (e) | 0.836 | |
Inclination (i) | 108.8° | |
Longitude of periastron (ω) | 116.3° | |
| Node (Ω) | 148.9° | |
Notes | | |
Reference | USN2002 | |
| Equinox | 2000 | |
Last observation | 1989 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
251.1 |
0.303 |
| 2001 |
250.6 |
0.304 |
| 2002 |
250.0 |
0.305 |
| 2003 |
249.5 |
0.306 |
| 2004 |
248.9 |
0.307 |
| 2005 |
248.4 |
0.308 |
| 2006 |
247.8 |
0.309 |
| 2007 |
247.3 |
0.310 |
| 2008 |
246.8 |
0.311 |
| 2009 |
246.2 |
0.312 |
| 2010 |
245.7 |
0.313 |
| 2011 |
245.2 |
0.314 |
| 2012 |
244.7 |
0.315 |
| 2013 |
244.2 |
0.316 |
| 2014 |
243.7 |
0.317 |
| 2015 |
243.2 |
0.318 |
| 2016 |
242.7 |
0.320 |
| 2017 |
242.2 |
0.321 |
| 2018 |
241.7 |
0.322 |
| 2019 |
241.2 |
0.323 |
| 2020 |
240.7 |
0.325 |
| 2021 |
240.2 |
0.326 |
| 2022 |
239.7 |
0.327 |
| 2023 |
239.2 |
0.328 |
| 2024 |
238.8 |
0.330 |
| 2025 |
238.3 |
0.331 |
| 2026 |
237.8 |
0.332 |
| 2027 |
237.4 |
0.334 |
| 2028 |
236.9 |
0.335 |
| 2029 |
236.5 |
0.336 |
| 2030 |
236.0 |
0.338 |
|
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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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