22100+2308 COU 136 (HD 210444)
22h 10m 02.22s +23° 07' 33.0" P.A. 19.00 sep 0.4 mag 9.20,7.56 Sp F6IV dist. 93.81 pc (306.01 l.y.)
Coord 2000 |
22100+2308 |
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Discov num |
COU 136 |
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Comp |
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Coord arcsec 2000 |
22 10 02.22 +23 07 33.0 |
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Date first |
1966 |
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Date last |
2015 |
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Obs |
75 |
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Pa first |
73 |
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Pa last |
18.6 |
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P.A. Now (θ) |
18.6° |
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Sep first |
0.2 |
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Sep last |
0.439 |
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Sep. Now (ρ) |
0.439" |
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Mag pri |
9.20 |
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Mag sec |
7.56 |
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delta mag (ΔM) |
1.64 |
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Spectral class |
F6IV (yellow-white) |
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Pri motion ra |
-019 |
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Sec motion ra |
-019 |
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Pri motion dec |
-008 |
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Sec motion dec |
-008 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 210444 |
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Constellation |
Pegasus |
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SAO |
90281 |
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HIP |
109414 |
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Tycho2 |
2204-02347-1 |
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HD |
210444 |
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BD |
BD+22 4563 |
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Distance |
93.81 |
|
Distance ly |
306.01 |
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ORBITAL ELEMENTS
Period (P) | 284.6y | |
Periastron (T) | 1969.6y | |
Semi-major axis (a) | 0.62a | |
Eccentricity (e) | 0.321 | |
Inclination (i) | 110.6° | |
Longitude of periastron (ω) | 304.2° | |
Node (Ω) | 35.8° | |
Notes | | |
Reference | Doc2016h | |
Equinox | 2000 | |
Last observation | 2011 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
30.8 |
0.488 |
2001 |
30.1 |
0.488 |
2002 |
29.4 |
0.489 |
2003 |
28.7 |
0.488 |
2004 |
28.1 |
0.488 |
2005 |
27.4 |
0.487 |
2006 |
26.7 |
0.486 |
2007 |
26.0 |
0.485 |
2008 |
25.3 |
0.483 |
2009 |
24.6 |
0.481 |
2010 |
23.9 |
0.479 |
2011 |
23.2 |
0.476 |
2012 |
22.5 |
0.473 |
2013 |
21.8 |
0.470 |
2014 |
21.0 |
0.467 |
2015 |
20.3 |
0.464 |
2016 |
19.5 |
0.460 |
2017 |
18.7 |
0.456 |
2018 |
17.9 |
0.452 |
2019 |
17.1 |
0.448 |
2020 |
16.3 |
0.443 |
2021 |
15.5 |
0.438 |
2022 |
14.6 |
0.434 |
2023 |
13.8 |
0.429 |
2024 |
12.9 |
0.424 |
2025 |
12.0 |
0.419 |
2026 |
11.0 |
0.413 |
2027 |
10.1 |
0.408 |
2028 |
9.1 |
0.403 |
2029 |
8.1 |
0.397 |
2030 |
7.0 |
0.392 |
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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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