22562+7250 STT 484 AB (HD 217085)
22h 56m 13.13s +72° 50' 14.5" P.A. 101.00 sep 0.4 mag 7.57,9.47 Sp A2 dist. 178.57 pc (582.5 l.y.)
| Coord 2000 |
22562+7250 |
|
Discov num |
STT 484 |
|
Comp |
AB |
|
Coord arcsec 2000 |
22 56 13.13 +72 50 14.5 |
|
| Date first |
1846 |
|
Date last |
2007 |
|
Obs |
34 |
|
| Pa first |
118 |
|
Pa last |
100.8 |
|
P.A. Now (θ) |
92.4° |
|
| Sep first |
0.4 |
|
Sep last |
0.355 |
|
Sep. Now (ρ) |
0.304" |
|
| Mag pri |
7.57 |
|
Mag sec |
9.47 |
|
delta mag (ΔM) |
1.9 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-009 |
|
Sec motion dec |
-009 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
22562+7250 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 217085 |
10560 |
22 56 13 +72 50 14 |
STT 484 AB |
2007 |
34 |
101 |
0.4 |
7.57 |
9.47 |
1.90 |
Y |
<=== |
| Show |
|
10560 |
22 56 13 +72 50 14 |
STT 484 AB,C |
2016 |
23 |
257 |
30.7 |
7.57 |
10.42 |
2.85 |
|
|
| Show |
|
10560 |
22 56 13 +72 50 14 |
S 820 AB,D |
2003 |
12 |
280 |
119.2 |
7.57 |
8.42 |
0.85 |
|
|
| Show |
|
10555 |
22 55 47 +72 50 36 |
STF 2965 DE |
2019 |
37 |
220 |
2.9 |
8.42 |
9.38 |
0.96 |
|
|
Quintuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 217085 |
|
Constellation |
Cepheus |
|
SAO |
10560 |
|
HIP |
113273 |
|
| Tycho2 |
4485-00844-1 |
|
HD |
217085 |
|
GC |
31995 |
|
ADS |
16393 |
|
| BD |
BD+72 1076 |
|
Distance |
178.57 |
|
Distance ly |
582.5 |
|
ORBITAL ELEMENTS
| Period (P) | 142.6y | |
Periastron (T) | 1937.71y | |
Semi-major axis (a) | 0.366a | |
| Eccentricity (e) | 0.866 | |
Inclination (i) | 111.4° | |
Longitude of periastron (ω) | 247.7° | |
| Node (Ω) | 142.2° | |
Notes | n | |
Reference | Sca2014a | |
| Equinox | 2000 | |
Last observation | 2007 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
104.9 |
0.367 |
| 2001 |
104.4 |
0.365 |
| 2002 |
104.0 |
0.363 |
| 2003 |
103.5 |
0.361 |
| 2004 |
103.0 |
0.359 |
| 2005 |
102.5 |
0.357 |
| 2006 |
102.1 |
0.354 |
| 2007 |
101.6 |
0.352 |
| 2008 |
101.1 |
0.349 |
| 2009 |
100.5 |
0.347 |
| 2010 |
100.0 |
0.344 |
| 2011 |
99.5 |
0.342 |
| 2012 |
99.0 |
0.339 |
| 2013 |
98.4 |
0.336 |
| 2014 |
97.9 |
0.333 |
| 2015 |
97.3 |
0.330 |
| 2016 |
96.7 |
0.327 |
| 2017 |
96.2 |
0.324 |
| 2018 |
95.6 |
0.321 |
| 2019 |
95.0 |
0.317 |
| 2020 |
94.3 |
0.314 |
| 2021 |
93.7 |
0.311 |
| 2022 |
93.1 |
0.307 |
| 2023 |
92.4 |
0.304 |
| 2024 |
91.7 |
0.300 |
| 2025 |
91.0 |
0.297 |
| 2026 |
90.3 |
0.293 |
| 2027 |
89.6 |
0.289 |
| 2028 |
88.9 |
0.286 |
| 2029 |
88.1 |
0.282 |
| 2030 |
87.3 |
0.278 |
|
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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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