22520+5743 A 632 AB (HD 216448)
22h 52m 00.55s +57° 43' 00.6" P.A. 110.00 sep 0.4 mag 8.59,9.32 Sp K5III dist. 23.88 pc (77.9 l.y.)
| Coord 2000 |
22520+5743 |
|
Discov num |
A 632 |
|
Comp |
AB |
|
Coord arcsec 2000 |
22 52 00.55 +57 43 00.6 |
|
| Date first |
1903 |
|
Date last |
2017 |
|
Obs |
147 |
|
| Pa first |
136 |
|
Pa last |
110.3 |
|
P.A. Now (θ) |
110.3° |
|
| Sep first |
0.5 |
|
Sep last |
0.387 |
|
Sep. Now (ρ) |
0.387" |
|
| Mag pri |
8.59 |
|
Mag sec |
9.32 |
|
delta mag (ΔM) |
0.73 |
|
Spectral class |
K5III (yellow-orange) |
|
| Pri motion ra |
-093 |
|
Sec motion ra |
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|
| Pri motion dec |
-220 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
22520+5743 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 216448 |
34895 |
22 52 01 +57 43 01 |
A 632 AB |
2017 |
147 |
110 |
0.4 |
8.59 |
9.32 |
0.73 |
Y |
<=== |
| Show |
|
34895 |
22 52 01 +57 43 01 |
HLA 32 AC |
2017 |
3 |
97 |
3.2 |
5.50 |
12.30 |
6.80 |
|
|
| Show |
|
34895 |
22 52 01 +57 43 01 |
HLA 32 AD |
2017 |
1 |
107 |
3.5 |
5.50 |
12.10 |
6.60 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 216448 |
|
Constellation |
Cepheus |
|
SAO |
34895 |
|
HIP |
112915 |
|
| Tycho2 |
3992-00842-1 |
|
HD |
216448 |
|
ADS |
16326 |
|
BD |
BD+56 2890 |
|
| Distance |
23.88 |
|
Distance ly |
77.9 |
|
SUSPECTED ORBITAL ELEMENTS
| Identifier | 22520+5743 A 632 |
| coord_arcsec_2000 | 225200.55+574300.6 |
| Period (P) | 107.3y | |
Periastron (T) | 1931.6y | |
Semi-major axis (a) | 1.127a | |
| Eccentricity (e) | 0.85 | |
Inclination (i) | 103.5° | |
Longitude of periastron (ω) | 69.3° | |
| Node (Ω) | 20.4° | |
Notes | n | |
Reference | Hei1991 | |
| Equinox | 2000 | |
Last observation | 1990 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
154.7 |
0.629 |
| 2001 |
153.3 |
0.612 |
| 2002 |
151.8 |
0.594 |
| 2003 |
150.3 |
0.577 |
| 2004 |
148.7 |
0.559 |
| 2005 |
147.0 |
0.542 |
| 2006 |
145.1 |
0.525 |
| 2007 |
143.2 |
0.508 |
| 2008 |
141.1 |
0.491 |
| 2009 |
138.8 |
0.475 |
| 2010 |
136.4 |
0.459 |
| 2011 |
133.8 |
0.443 |
| 2012 |
131.1 |
0.428 |
| 2013 |
128.1 |
0.414 |
| 2014 |
124.9 |
0.400 |
| 2015 |
121.5 |
0.387 |
| 2016 |
117.9 |
0.376 |
| 2017 |
114.1 |
0.365 |
| 2018 |
110.1 |
0.356 |
| 2019 |
105.8 |
0.348 |
| 2020 |
101.4 |
0.341 |
| 2021 |
96.8 |
0.336 |
| 2022 |
92.2 |
0.333 |
| 2023 |
87.4 |
0.331 |
| 2024 |
82.6 |
0.331 |
| 2025 |
77.8 |
0.332 |
| 2026 |
73.1 |
0.335 |
| 2027 |
68.5 |
0.339 |
| 2028 |
64.0 |
0.344 |
| 2029 |
59.6 |
0.349 |
| 2030 |
55.4 |
0.354 |
|
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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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