01148+6056 BU 1100 (HD 7331)
01h 14m 45.80s +60° 56' 19.9" P.A. 353.00 sep 0.3 mag 8.94,7.57 Sp F7IV dist. 100.3 pc (327.18 l.y.)
| Coord 2000 |
01148+6056 |
|
Discov num |
BU 1100 |
|
Comp |
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|
Coord arcsec 2000 |
01 14 45.80 +60 56 19.9 |
|
| Date first |
1889 |
|
Date last |
2010 |
|
Obs |
70 |
|
| Pa first |
44 |
|
Pa last |
353.4 |
|
P.A. Now (θ) |
132.3° |
|
| Sep first |
0.5 |
|
Sep last |
0.33 |
|
Sep. Now (ρ) |
0.204" |
|
| Mag pri |
8.94 |
|
Mag sec |
7.57 |
|
delta mag (ΔM) |
1.37 |
|
Spectral class |
F7IV (yellow-white) |
|
| Pri motion ra |
+064 |
|
Sec motion ra |
+064 |
|
| Pri motion dec |
-044 |
|
Sec motion dec |
-044 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 7331 |
|
Constellation |
Cassiopeia |
|
SAO |
11652 |
|
HIP |
5829 |
|
| Tycho2 |
4030-00318-1 |
|
Gaia DR2 |
510447830826862848 |
|
HD |
7331 |
|
GC |
1484 |
|
| ADS |
999 |
|
BD |
BD+60 193 |
|
Distance |
100.3 |
|
Distance ly |
327.18 |
|
ORBITAL ELEMENTS
| Period (P) | 171.49y | |
Periastron (T) | 1950.92y | |
Semi-major axis (a) | 0.506a | |
| Eccentricity (e) | 0.135 | |
Inclination (i) | 110.7° | |
Longitude of periastron (ω) | 288.1° | |
| Node (Ω) | 210.7° | |
Notes | n | |
Reference | Msn2014b | |
| Equinox | 2000 | |
Last observation | 2010 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
190.9 |
0.395 |
| 2001 |
189.7 |
0.386 |
| 2002 |
188.4 |
0.377 |
| 2003 |
187.0 |
0.367 |
| 2004 |
185.6 |
0.358 |
| 2005 |
184.1 |
0.348 |
| 2006 |
182.5 |
0.339 |
| 2007 |
180.8 |
0.329 |
| 2008 |
179.0 |
0.319 |
| 2009 |
177.1 |
0.309 |
| 2010 |
175.1 |
0.299 |
| 2011 |
172.9 |
0.289 |
| 2012 |
170.6 |
0.280 |
| 2013 |
168.1 |
0.270 |
| 2014 |
165.4 |
0.261 |
| 2015 |
162.6 |
0.252 |
| 2016 |
159.5 |
0.244 |
| 2017 |
156.2 |
0.236 |
| 2018 |
152.7 |
0.229 |
| 2019 |
149.0 |
0.222 |
| 2020 |
145.1 |
0.216 |
| 2021 |
141.0 |
0.211 |
| 2022 |
136.7 |
0.207 |
| 2023 |
132.3 |
0.204 |
| 2024 |
127.7 |
0.202 |
| 2025 |
123.1 |
0.201 |
| 2026 |
118.4 |
0.202 |
| 2027 |
113.8 |
0.203 |
| 2028 |
109.3 |
0.206 |
| 2029 |
104.9 |
0.209 |
| 2030 |
100.7 |
0.214 |
| 2031 |
96.7 |
0.219 |
| 2032 |
92.9 |
0.225 |
| 2033 |
89.3 |
0.232 |
| 2034 |
85.9 |
0.240 |
| 2035 |
82.8 |
0.248 |
| 2036 |
79.8 |
0.257 |
| 2037 |
77.0 |
0.266 |
| 2038 |
74.5 |
0.275 |
| 2039 |
72.1 |
0.285 |
| 2040 |
69.8 |
0.295 |
| 2041 |
67.7 |
0.305 |
| 2042 |
65.8 |
0.315 |
| 2043 |
63.9 |
0.325 |
| 2044 |
62.2 |
0.335 |
| 2045 |
60.6 |
0.346 |
| 2046 |
59.1 |
0.356 |
| 2047 |
57.6 |
0.366 |
| 2048 |
56.2 |
0.376 |
| 2049 |
54.9 |
0.385 |
| 2050 |
53.7 |
0.395 |
|
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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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