23334+4251 HDS 3356 (HD 221613)
23h 33m 24.06s +42° 50' 47.8" P.A. 3.00 sep 0.1 mag 7.36,9.97 Sp G0 dist. 34.94 pc (113.97 l.y.)
| Coord 2000 |
23334+4251 |
|
Discov num |
HDS3356 |
|
Comp |
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Coord arcsec 2000 |
23 33 24.06 +42 50 47.8 |
|
| Date first |
1991 |
|
Date last |
2011 |
|
Obs |
28 |
|
| Pa first |
341 |
|
Pa last |
3.2 |
|
P.A. Now (θ) |
325.1° |
|
| Sep first |
0.2 |
|
Sep last |
0.125 |
|
Sep. Now (ρ) |
0.176" |
|
| Mag pri |
7.36 |
|
Mag sec |
9.97 |
|
delta mag (ΔM) |
2.61 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
+244 |
|
Sec motion ra |
|
|
| Pri motion dec |
+167 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 221613 |
|
Constellation |
Andromeda |
|
SAO |
53142 |
|
HIP |
116259 |
|
| Tycho2 |
3239-00142-1 |
|
Gaia DR2 |
1924124427825883904 |
|
HD |
221613 |
|
GC |
32758 |
|
| GL |
Wo 9830 |
|
BD |
BD+42 4700 |
|
Distance |
34.94 |
|
Distance ly |
113.97 |
|
ORBITAL ELEMENTS
| Period (P) | 15.7y | ± 0.23 |
Periastron (T) | 2005.49y | ± 0.01 |
Semi-major axis (a) | 0.22a | ± 0.002 |
| Eccentricity (e) | 0.536 | ± 0.007 |
Inclination (i) | 75.1° | ± 0.4 |
Longitude of periastron (ω) | 89.5° | ± 0.8 |
| Node (Ω) | 141.5° | ± 0.3 |
Notes | n | |
Reference | Bag2007b | |
| Equinox | 2000 | |
Last observation | 2006 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
105.9 |
0.131 |
| 2001 |
117.4 |
0.159 |
| 2002 |
125.7 |
0.181 |
| 2003 |
132.7 |
0.187 |
| 2004 |
140.3 |
0.162 |
| 2005 |
157.5 |
0.078 |
| 2006 |
305.8 |
0.079 |
| 2007 |
322.6 |
0.164 |
| 2008 |
330.1 |
0.189 |
| 2009 |
336.9 |
0.183 |
| 2010 |
344.9 |
0.163 |
| 2011 |
355.9 |
0.135 |
| 2012 |
12.8 |
0.107 |
| 2013 |
38.9 |
0.089 |
| 2014 |
70.1 |
0.091 |
| 2015 |
94.4 |
0.112 |
| 2016 |
109.9 |
0.140 |
| 2017 |
120.1 |
0.167 |
| 2018 |
127.9 |
0.185 |
| 2019 |
134.8 |
0.184 |
| 2020 |
143.4 |
0.145 |
| 2021 |
180.9 |
0.040 |
| 2022 |
313.8 |
0.113 |
| 2023 |
325.1 |
0.176 |
| 2024 |
332.1 |
0.189 |
| 2025 |
339.1 |
0.178 |
| 2026 |
347.8 |
0.155 |
| 2027 |
0.2 |
0.126 |
| 2028 |
19.6 |
0.100 |
| 2029 |
48.3 |
0.087 |
| 2030 |
78.4 |
0.096 |
|
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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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