03223-4119 I 151 (HD 21058)
03h 22m 16.76s -41° 18' 56.0" P.A. 191.00 sep 0.8 mag 9.22,9.48 Sp G6V dist. 64.02 pc (208.83 l.y.)
Coord 2000 |
03223-4119 |
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Discov num |
I 151 |
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Comp |
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Coord arcsec 2000 |
03 22 16.76 -41 18 56.0 |
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Date first |
1896 |
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Date last |
2018 |
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Obs |
22 |
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Pa first |
160 |
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Pa last |
190.5 |
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P.A. Now (θ) |
190.5° |
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Sep first |
1.0 |
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Sep last |
0.805 |
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Sep. Now (ρ) |
0.805" |
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Mag pri |
9.22 |
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Mag sec |
9.48 |
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delta mag (ΔM) |
0.26 |
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Spectral class |
G6V (yellow) |
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Pri motion ra |
+076 |
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Sec motion ra |
+076 |
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Pri motion dec |
+102 |
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Sec motion dec |
+102 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 21058 |
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Constellation |
Eridanus |
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SAO |
216280 |
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HIP |
15703 |
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Tycho2 |
7571-01108-1 |
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Gaia DR2 |
4852656399816716672 |
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HD |
21058 |
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CD |
CD-41 975 |
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CP |
CP-41 324 |
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Distance |
64.02 |
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Distance ly |
208.83 |
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ORBITAL ELEMENTS
Period (P) | 989.1797y | ± 512.2037 |
Periastron (T) | 2067.4693y | ± 186.6763 |
Semi-major axis (a) | 1.46935a | ± 0.5863 |
Eccentricity (e) | 0.38321 | ± 0.43889 |
Inclination (i) | 65.3° | ± 10.15 |
Longitude of periastron (ω) | 78.445° | ± 39.718 |
Node (Ω) | 171.741° | ± 22.432 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2010 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
182.2 |
0.955 |
2001 |
182.5 |
0.948 |
2002 |
182.8 |
0.941 |
2003 |
183.2 |
0.934 |
2004 |
183.5 |
0.927 |
2005 |
183.9 |
0.919 |
2006 |
184.2 |
0.912 |
2007 |
184.6 |
0.904 |
2008 |
185.0 |
0.897 |
2009 |
185.4 |
0.889 |
2010 |
185.8 |
0.881 |
2011 |
186.2 |
0.874 |
2012 |
186.6 |
0.866 |
2013 |
187.0 |
0.858 |
2014 |
187.4 |
0.850 |
2015 |
187.8 |
0.842 |
2016 |
188.2 |
0.834 |
2017 |
188.7 |
0.825 |
2018 |
189.1 |
0.817 |
2019 |
189.6 |
0.809 |
2020 |
190.1 |
0.800 |
2021 |
190.5 |
0.792 |
2022 |
191.0 |
0.783 |
2023 |
191.5 |
0.775 |
2024 |
192.0 |
0.766 |
2025 |
192.6 |
0.758 |
2026 |
193.1 |
0.749 |
2027 |
193.6 |
0.740 |
2028 |
194.2 |
0.731 |
2029 |
194.8 |
0.723 |
2030 |
195.4 |
0.714 |
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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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