21582+8252 PKO 34 Aa,Ab
21h 58m 13.53s +82° 52' 10.8" P.A. 229.00 sep 0.3 mag 7.00,10.60 Sp F8V+K5V dist. 29.9 pc (97.53 l.y.)
| Coord 2000 |
21582+8252 |
|
Discov num |
PKO 34 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
21 58 13.53 +82 52 10.8 |
|
| Date first |
2014 |
|
Date last |
2022 |
|
Obs |
27 |
|
| Pa first |
128 |
|
Pa last |
229.2 |
|
P.A. Now (θ) |
229° |
|
| Sep first |
0.1 |
|
Sep last |
0.306 |
|
Sep. Now (ρ) |
0.3" |
|
| Mag pri |
7.00 |
|
Mag sec |
10.60 |
|
delta mag (ΔM) |
3.6 |
|
Spectral class |
F8V+K5V (yellow-white/yellow-orange) |
|
| Pri motion ra |
-133 |
|
Sec motion ra |
|
|
| Pri motion dec |
-047 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
21582+8252 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
3673 |
21 58 14 +82 52 11 |
PKO 34 Aa,Ab |
2022 |
27 |
229 |
0.3 |
7.00 |
10.60 |
3.60 |
Y |
<=== |
| Show |
HD 209942 |
3673 |
21 58 14 +82 52 11 |
STF 2873 AB |
2024 |
151 |
65 |
13.7 |
7.00 |
7.47 |
0.47 |
Y |
|
| Show |
|
3673 |
21 58 14 +82 52 11 |
STF 2873 AC |
2015 |
5 |
200 |
136.1 |
7.00 |
13.00 |
6.00 |
|
|
| Show |
|
3675 |
21 58 20 +82 52 16 |
YSC 120 Ba,Bb |
2018 |
2 |
34 |
0.0 |
7.50 |
11.00 |
3.50 |
|
|
Quintuple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cepheus |
|
SAO |
3673 |
|
HIP |
108456 |
|
Tycho2 |
4649-03691-1 |
|
| HD |
209942 |
|
HR |
8423 |
|
ADS |
15571 |
|
BD |
BD+82 673 |
|
| Distance |
29.9 |
|
Distance ly |
97.53 |
|
ORBITAL ELEMENTS
| Period (P) | 24.49y | ± 0.25 |
Periastron (T) | 2016.512y | ± 0.006 |
Semi-major axis (a) | 251.4m | ± 1.7 |
| Eccentricity (e) | 0.624 | ± 0.003 |
Inclination (i) | 138.54° | ± 0.31 |
Longitude of periastron (ω) | 11.42° | ± 0.5 |
| Node (Ω) | 32.03° | ± 0.46 |
Notes | n | |
Reference | PkO2024 | |
| Equinox | | |
Last observation | | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
218.3 |
0.370 |
| 2001 |
214.5 |
0.387 |
| 2002 |
211.0 |
0.398 |
| 2003 |
207.6 |
0.404 |
| 2004 |
204.3 |
0.405 |
| 2005 |
201.0 |
0.401 |
| 2006 |
197.5 |
0.393 |
| 2007 |
193.9 |
0.379 |
| 2008 |
189.9 |
0.361 |
| 2009 |
185.5 |
0.338 |
| 2010 |
180.3 |
0.310 |
| 2011 |
173.9 |
0.276 |
| 2012 |
165.7 |
0.238 |
| 2013 |
154.0 |
0.195 |
| 2014 |
135.6 |
0.151 |
| 2015 |
103.5 |
0.114 |
| 2016 |
53.5 |
0.098 |
| 2017 |
351.4 |
0.089 |
| 2018 |
291.4 |
0.112 |
| 2019 |
261.5 |
0.165 |
| 2020 |
246.4 |
0.218 |
| 2021 |
237.0 |
0.264 |
| 2022 |
230.2 |
0.303 |
| 2023 |
224.8 |
0.334 |
| 2024 |
220.3 |
0.360 |
| 2025 |
216.3 |
0.379 |
| 2026 |
212.7 |
0.393 |
| 2027 |
209.3 |
0.402 |
| 2028 |
205.9 |
0.405 |
| 2029 |
202.6 |
0.404 |
| 2030 |
199.2 |
0.398 |
| 2031 |
195.7 |
0.387 |
| 2032 |
191.9 |
0.371 |
| 2033 |
187.7 |
0.350 |
| 2034 |
182.9 |
0.324 |
| 2035 |
177.2 |
0.293 |
| 2036 |
170.0 |
0.257 |
| 2037 |
160.3 |
0.217 |
| 2038 |
145.8 |
0.173 |
| 2039 |
121.5 |
0.131 |
| 2040 |
79.8 |
0.103 |
| 2041 |
23.5 |
0.094 |
| 2042 |
317.3 |
0.094 |
| 2043 |
273.3 |
0.138 |
| 2044 |
252.8 |
0.192 |
| 2045 |
241.1 |
0.242 |
| 2046 |
233.3 |
0.285 |
| 2047 |
227.3 |
0.320 |
| 2048 |
222.4 |
0.348 |
| 2049 |
218.2 |
0.371 |
| 2050 |
214.4 |
0.387 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
