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 |
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Discov num |
A 1247 |
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Comp |
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Coord arcsec 2000 |
23 52 01.43 +12 52 19.2 |
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Date first |
1905 |
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Date last |
2012 |
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Obs |
29 |
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Pa first |
322 |
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Pa last |
256.5 |
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P.A. Now (θ) |
256.5° |
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Sep first |
0.2 |
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Sep last |
0.396 |
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Sep. Now (ρ) |
0.396" |
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Mag pri |
9.70 |
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Mag sec |
10.00 |
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delta mag (ΔM) |
0.3 |
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Spectral class |
F8 (yellow-white) |
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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 |
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Tycho2 |
1177-01365-1 |
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Gaia DR2 |
2769864786178214016 |
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ADS |
17060 |
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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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