23322+0705 HU 298 (HD 221445)
23h 32m 12.71s +07° 05' 06.1" P.A. 241.00 sep 0.1 mag 7.46,7.92 Sp F7V dist. 76.69 pc (250.16 l.y.)
| Coord 2000 |
23322+0705 |
|
Discov num |
HU 298 |
|
Comp |
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Coord arcsec 2000 |
23 32 12.71 +07 05 06.1 |
|
| Date first |
1900 |
|
Date last |
2020 |
|
Obs |
143 |
|
| Pa first |
275 |
|
Pa last |
241.3 |
|
P.A. Now (θ) |
273.4° |
|
| Sep first |
0.2 |
|
Sep last |
0.121 |
|
Sep. Now (ρ) |
0.15" |
|
| Mag pri |
7.46 |
|
Mag sec |
7.92 |
|
delta mag (ΔM) |
0.46 |
|
Spectral class |
F7V (yellow-white) |
|
| Pri motion ra |
-021 |
|
Sec motion ra |
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|
| Pri motion dec |
-054 |
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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 221445 |
|
Constellation |
Pisces |
|
SAO |
128231 |
|
HIP |
116164 |
|
| Tycho2 |
0591-00599-1 |
|
Gaia DR2 |
2757465146875793280 |
|
HD |
221445 |
|
GC |
32732 |
|
| ADS |
16819 |
|
BD |
BD+06 5168 |
|
Distance |
76.69 |
|
Distance ly |
250.16 |
|
ORBITAL ELEMENTS
| Period (P) | 30.73y | |
Periastron (T) | 1987.47y | |
Semi-major axis (a) | 0.173a | |
| Eccentricity (e) | 0.263 | |
Inclination (i) | 31° | |
Longitude of periastron (ω) | 57° | |
| Node (Ω) | 126.8° | |
Notes | n | |
Reference | Hrt2000c | |
| Equinox | 2000 | |
Last observation | 1997 | |
Grade | 1 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
339.3 |
0.203 |
| 2001 |
346.3 |
0.202 |
| 2002 |
353.5 |
0.200 |
| 2003 |
0.9 |
0.196 |
| 2004 |
8.6 |
0.192 |
| 2005 |
16.6 |
0.188 |
| 2006 |
25.0 |
0.183 |
| 2007 |
33.9 |
0.179 |
| 2008 |
43.2 |
0.174 |
| 2009 |
53.0 |
0.170 |
| 2010 |
63.3 |
0.166 |
| 2011 |
74.0 |
0.163 |
| 2012 |
85.2 |
0.159 |
| 2013 |
97.0 |
0.155 |
| 2014 |
109.5 |
0.150 |
| 2015 |
123.0 |
0.143 |
| 2016 |
138.0 |
0.134 |
| 2017 |
155.3 |
0.125 |
| 2018 |
175.3 |
0.116 |
| 2019 |
197.8 |
0.112 |
| 2020 |
220.8 |
0.114 |
| 2021 |
241.7 |
0.123 |
| 2022 |
259.2 |
0.136 |
| 2023 |
273.4 |
0.150 |
| 2024 |
285.3 |
0.163 |
| 2025 |
295.4 |
0.175 |
| 2026 |
304.3 |
0.185 |
| 2027 |
312.3 |
0.193 |
| 2028 |
319.9 |
0.198 |
| 2029 |
327.1 |
0.202 |
| 2030 |
334.2 |
0.203 |
|
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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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