01345+7804 HDS 211 Aa,Ab
01h 34m 30.53s +78° 03' 46.6" P.A. 211.00 sep 0.2 mag 11.02,12.76 Sp M0 dist. 37.71 pc (123.01 l.y.)
| Coord 2000 |
01345+7804 |
|
Discov num |
HDS 211 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
01 34 30.53 +78 03 46.6 |
|
| Date first |
1991 |
|
Date last |
2011 |
|
Obs |
13 |
|
| Pa first |
188 |
|
Pa last |
211 |
|
P.A. Now (θ) |
211° |
|
| Sep first |
0.2 |
|
Sep last |
0.223 |
|
Sep. Now (ρ) |
0.223" |
|
| Mag pri |
11.02 |
|
Mag sec |
12.76 |
|
delta mag (ΔM) |
1.74 |
|
Spectral class |
M0 (red) |
|
| Pri motion ra |
-066 |
|
Sec motion ra |
|
|
| Pri motion dec |
+104 |
|
Sec motion dec |
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|
| Notes |
O
(Orbital solution) |
|
This double is physical.
01345+7804 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
01 34 31 +78 03 47 |
HDS 211 Aa,Ab |
2011 |
13 |
211 |
0.2 |
11.02 |
12.76 |
1.74 |
Y |
<=== |
| Show |
|
|
01 34 31 +78 03 47 |
TOK 227 AB |
2015 |
7 |
350 |
61.9 |
10.64 |
13.28 |
2.64 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cepheus |
|
HIP |
7338 |
|
Tycho2 |
4498-01104-3 |
|
Gaia DR2 |
560680428277635456 |
|
| Distance |
37.71 |
|
Distance ly |
123.01 |
|
ORBITAL ELEMENTS
| Period (P) | 22.74y | |
Periastron (T) | 1996.99y | |
Semi-major axis (a) | 0.207a | |
| Eccentricity (e) | 0.462 | |
Inclination (i) | 127.7° | |
Longitude of periastron (ω) | 28.5° | |
| Node (Ω) | 68.8° | |
Notes | | |
Reference | Doc2007g | |
| Equinox | 2000 | |
Last observation | 2006 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
285.1 |
0.142 |
| 2001 |
271.2 |
0.186 |
| 2002 |
262.3 |
0.222 |
| 2003 |
255.7 |
0.249 |
| 2004 |
250.3 |
0.270 |
| 2005 |
245.5 |
0.282 |
| 2006 |
241.0 |
0.289 |
| 2007 |
236.6 |
0.289 |
| 2008 |
232.1 |
0.283 |
| 2009 |
227.4 |
0.273 |
| 2010 |
222.1 |
0.258 |
| 2011 |
216.2 |
0.238 |
| 2012 |
209.0 |
0.216 |
| 2013 |
200.1 |
0.190 |
| 2014 |
188.3 |
0.164 |
| 2015 |
172.2 |
0.140 |
| 2016 |
150.5 |
0.123 |
| 2017 |
124.4 |
0.117 |
| 2018 |
97.9 |
0.120 |
| 2019 |
72.2 |
0.117 |
| 2020 |
40.4 |
0.096 |
| 2021 |
348.4 |
0.080 |
| 2022 |
302.8 |
0.108 |
| 2023 |
280.7 |
0.154 |
| 2024 |
268.6 |
0.196 |
| 2025 |
260.5 |
0.230 |
| 2026 |
254.2 |
0.255 |
| 2027 |
249.0 |
0.274 |
| 2028 |
244.3 |
0.285 |
| 2029 |
239.8 |
0.289 |
| 2030 |
235.4 |
0.288 |
| 2031 |
230.9 |
0.281 |
| 2032 |
226.1 |
0.269 |
| 2033 |
220.7 |
0.253 |
| 2034 |
214.4 |
0.233 |
| 2035 |
206.9 |
0.209 |
| 2036 |
197.3 |
0.183 |
| 2037 |
184.6 |
0.157 |
| 2038 |
167.1 |
0.135 |
| 2039 |
144.0 |
0.120 |
| 2040 |
117.4 |
0.117 |
| 2041 |
91.2 |
0.120 |
| 2042 |
65.1 |
0.114 |
| 2043 |
29.0 |
0.088 |
| 2044 |
333.9 |
0.083 |
| 2045 |
295.5 |
0.120 |
| 2046 |
277.0 |
0.165 |
| 2047 |
266.2 |
0.205 |
| 2048 |
258.7 |
0.237 |
| 2049 |
252.8 |
0.261 |
| 2050 |
247.7 |
0.277 |
|
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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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