22500-3248 HDO 301 (HD 216042)
22h 49m 59.25s -32° 48' 19.4" P.A. 163.00 sep 0.2 mag 7.23,7.12 Sp F0V+F3V dist. 68.87 pc (224.65 l.y.)
| Coord 2000 |
22500-3248 |
|
Discov num |
HDO 301 |
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Comp |
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Coord arcsec 2000 |
22 49 59.25 -32 48 19.4 |
|
| Date first |
1897 |
|
Date last |
2021 |
|
Obs |
73 |
|
| Pa first |
90 |
|
Pa last |
162.5 |
|
P.A. Now (θ) |
149.4° |
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| Sep first |
0.4 |
|
Sep last |
0.215 |
|
Sep. Now (ρ) |
0.24" |
|
| Mag pri |
7.23 |
|
Mag sec |
7.12 |
|
delta mag (ΔM) |
0.11 |
|
Spectral class |
F0V+F3V (yellow-white/yellow-white) |
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| Pri motion ra |
-026 |
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Sec motion ra |
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| Pri motion dec |
-025 |
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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 216042 |
|
Constellation |
Piscis Austrinus |
|
SAO |
214119 |
|
HIP |
112746 |
|
| Tycho2 |
7508-00062-1 |
|
Gaia DR2 |
6603602141330816128 |
|
HD |
216042 |
|
HR |
8680 |
|
| GC |
31840 |
|
CD |
CD-3316244 |
|
CP |
CP-33 6293 |
|
Distance |
68.87 |
|
| Distance ly |
224.65 |
|
ORBITAL ELEMENTS
| Period (P) | 26.46y | ± 0.04 |
Periastron (T) | 2015.07y | ± 0.04 |
Semi-major axis (a) | 0.184a | ± 0.001 |
| Eccentricity (e) | 0.516 | ± 0.003 |
Inclination (i) | 162.9° | ± 1.5 |
Longitude of periastron (ω) | 255.8° | ± 4.9 |
| Node (Ω) | 194.6° | ± 5.2 |
Notes | n | |
Reference | Tok2015c | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
129.2 |
0.265 |
| 2001 |
123.9 |
0.267 |
| 2002 |
118.6 |
0.267 |
| 2003 |
113.3 |
0.265 |
| 2004 |
107.8 |
0.261 |
| 2005 |
102.2 |
0.255 |
| 2006 |
96.2 |
0.247 |
| 2007 |
89.8 |
0.237 |
| 2008 |
82.7 |
0.225 |
| 2009 |
74.7 |
0.210 |
| 2010 |
65.4 |
0.192 |
| 2011 |
54.0 |
0.172 |
| 2012 |
39.4 |
0.149 |
| 2013 |
19.2 |
0.124 |
| 2014 |
348.7 |
0.100 |
| 2015 |
303.0 |
0.086 |
| 2016 |
254.4 |
0.095 |
| 2017 |
220.8 |
0.120 |
| 2018 |
199.4 |
0.147 |
| 2019 |
184.6 |
0.172 |
| 2020 |
173.3 |
0.193 |
| 2021 |
164.1 |
0.212 |
| 2022 |
156.3 |
0.227 |
| 2023 |
149.4 |
0.240 |
| 2024 |
143.1 |
0.250 |
| 2025 |
137.2 |
0.258 |
| 2026 |
131.7 |
0.263 |
| 2027 |
126.3 |
0.266 |
| 2028 |
121.0 |
0.267 |
| 2029 |
115.7 |
0.266 |
| 2030 |
110.4 |
0.264 |
| 2031 |
104.8 |
0.258 |
| 2032 |
99.0 |
0.251 |
| 2033 |
92.8 |
0.242 |
| 2034 |
86.1 |
0.231 |
| 2035 |
78.6 |
0.217 |
| 2036 |
69.9 |
0.201 |
| 2037 |
59.6 |
0.182 |
| 2038 |
46.7 |
0.160 |
| 2039 |
29.4 |
0.136 |
| 2040 |
4.4 |
0.111 |
| 2041 |
325.8 |
0.090 |
| 2042 |
275.4 |
0.088 |
| 2043 |
234.3 |
0.107 |
| 2044 |
208.2 |
0.135 |
| 2045 |
190.8 |
0.161 |
| 2046 |
178.1 |
0.184 |
| 2047 |
168.1 |
0.204 |
| 2048 |
159.7 |
0.221 |
| 2049 |
152.4 |
0.234 |
| 2050 |
145.9 |
0.246 |
|
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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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