02060-2209 SEE 16 (HD 12912)
02h 05m 59.35s -22° 09' 03.0" P.A. 109.00 sep 0.1 mag 8.88,9.30 Sp F5 dist. 116.14 pc (378.85 l.y.)
Coord 2000 |
02060-2209 |
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Discov num |
SEE 16 |
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Comp |
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Coord arcsec 2000 |
02 05 59.35 -22 09 03.0 |
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Date first |
1897 |
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Date last |
2020 |
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Obs |
20 |
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Pa first |
36 |
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Pa last |
109.4 |
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P.A. Now (θ) |
109.4° |
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Sep first |
0.5 |
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Sep last |
0.1 |
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Sep. Now (ρ) |
0.1" |
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Mag pri |
8.88 |
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Mag sec |
9.30 |
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delta mag (ΔM) |
0.42 |
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Spectral class |
F5 (yellow-white) |
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Pri motion ra |
+004 |
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Sec motion ra |
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Pri motion dec |
+063 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 12912 |
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Constellation |
Cetus |
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HIP |
9798 |
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Tycho2 |
5858-00110-1 |
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Gaia DR2 |
5124331291949164416 |
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HD |
12912 |
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ADS |
1665 |
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BD |
BD-22 352 |
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CD |
CD-22 705 |
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CP |
CP-22 212 |
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Distance |
116.14 |
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Distance ly |
378.85 |
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ORBITAL ELEMENTS
Period (P) | 228y | |
Periastron (T) | 1971.9y | |
Semi-major axis (a) | 0.404a | |
Eccentricity (e) | 0.585 | |
Inclination (i) | 101.8° | |
Longitude of periastron (ω) | 133.1° | |
Node (Ω) | 33.8° | |
Notes | | |
Reference | Tok2019h | |
Equinox | 2000 | |
Last observation | 2019 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
187.4 |
0.149 |
2001 |
185.4 |
0.144 |
2002 |
183.3 |
0.139 |
2003 |
181.0 |
0.134 |
2004 |
178.5 |
0.129 |
2005 |
175.8 |
0.124 |
2006 |
172.9 |
0.120 |
2007 |
169.8 |
0.115 |
2008 |
166.5 |
0.111 |
2009 |
162.9 |
0.107 |
2010 |
159.0 |
0.104 |
2011 |
155.0 |
0.101 |
2012 |
150.6 |
0.098 |
2013 |
146.1 |
0.096 |
2014 |
141.4 |
0.095 |
2015 |
136.6 |
0.094 |
2016 |
131.8 |
0.094 |
2017 |
127.0 |
0.094 |
2018 |
122.2 |
0.095 |
2019 |
117.6 |
0.097 |
2020 |
113.1 |
0.099 |
2021 |
108.9 |
0.102 |
2022 |
104.9 |
0.105 |
2023 |
101.1 |
0.109 |
2024 |
97.6 |
0.113 |
2025 |
94.4 |
0.117 |
2026 |
91.4 |
0.122 |
2027 |
88.6 |
0.127 |
2028 |
86.0 |
0.132 |
2029 |
83.7 |
0.137 |
2030 |
81.5 |
0.143 |
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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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