22077+2622 COU 537
22h 07m 40.20s +26° 21' 35.8" P.A. 328.00 sep 0.2 mag 8.60,8.80 Sp G0
Coord 2000 |
22077+2622 |
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Discov num |
COU 537 |
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Comp |
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Coord arcsec 2000 |
22 07 40.20 +26 21 35.8 |
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Date first |
1970 |
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Date last |
2013 |
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Obs |
40 |
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Pa first |
339 |
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Pa last |
327.6 |
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P.A. Now (θ) |
354.9° |
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Sep first |
0.3 |
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Sep last |
0.241 |
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Sep. Now (ρ) |
0.234" |
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Mag pri |
8.60 |
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Mag sec |
8.80 |
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delta mag (ΔM) |
0.2 |
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Spectral class |
G0 (yellow) |
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Pri motion ra |
-017 |
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Sec motion ra |
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Pri motion dec |
-020 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Pegasus |
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Tycho2 |
2212-01321-1 |
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ORBITAL ELEMENTS
Period (P) | 47.43y | |
Periastron (T) | 1993.7y | |
Semi-major axis (a) | 0.185a | |
Eccentricity (e) | 0.595 | |
Inclination (i) | 35.1° | |
Longitude of periastron (ω) | 89.1° | |
Node (Ω) | 69.3° | |
Notes | | |
Reference | Doc2012g | |
Equinox | 2000 | |
Last observation | 2008 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
273.2 |
0.162 |
2001 |
279.3 |
0.174 |
2002 |
284.7 |
0.184 |
2003 |
289.5 |
0.192 |
2004 |
293.9 |
0.200 |
2005 |
298.1 |
0.207 |
2006 |
301.9 |
0.213 |
2007 |
305.6 |
0.218 |
2008 |
309.1 |
0.223 |
2009 |
312.5 |
0.227 |
2010 |
315.8 |
0.230 |
2011 |
319.0 |
0.233 |
2012 |
322.1 |
0.236 |
2013 |
325.1 |
0.238 |
2014 |
328.1 |
0.239 |
2015 |
331.1 |
0.240 |
2016 |
334.1 |
0.241 |
2017 |
337.0 |
0.241 |
2018 |
339.9 |
0.241 |
2019 |
342.9 |
0.241 |
2020 |
345.8 |
0.240 |
2021 |
348.8 |
0.238 |
2022 |
351.8 |
0.237 |
2023 |
354.9 |
0.234 |
2024 |
358.0 |
0.232 |
2025 |
1.3 |
0.229 |
2026 |
4.6 |
0.225 |
2027 |
8.0 |
0.221 |
2028 |
11.6 |
0.216 |
2029 |
15.4 |
0.210 |
2030 |
19.3 |
0.204 |
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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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