05427-6708 I 745 (HD 38746)
05h 42m 41.65s -67° 08' 19.5" P.A. 192.00 sep 0.1 mag 7.72,10.26 Sp F7V dist. 84.96 pc (277.14 l.y.)
Coord 2000 |
05427-6708 |
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Discov num |
I 745 |
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Comp |
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Coord arcsec 2000 |
05 42 41.65 -67 08 19.5 |
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Date first |
1910 |
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Date last |
2021 |
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Obs |
9 |
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Pa first |
240 |
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Pa last |
192.2 |
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P.A. Now (θ) |
192.2° |
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Sep first |
1.0 |
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Sep last |
0.052 |
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Sep. Now (ρ) |
0.052" |
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Mag pri |
7.72 |
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Mag sec |
10.26 |
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delta mag (ΔM) |
2.54 |
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Spectral class |
F7V (yellow-white) |
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Pri motion ra |
+032 |
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Sec motion ra |
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Pri motion dec |
-039 |
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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 38746 |
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Constellation |
Dorado |
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SAO |
249339 |
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HIP |
26904 |
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Tycho2 |
8891-03264-1 |
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Gaia DR2 |
4659455198786053376 |
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HD |
38746 |
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GC |
7205 |
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CP |
CP-67 496 |
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Distance |
84.96 |
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Distance ly |
277.14 |
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ORBITAL ELEMENTS
Period (P) | 208y | ± 33 |
Periastron (T) | 2017.19y | ± 0.29 |
Semi-major axis (a) | 0.568a | ± 0.051 |
Eccentricity (e) | 0.775 | ± 0.021 |
Inclination (i) | 72.1° | ± 1.4 |
Longitude of periastron (ω) | 205.8° | ± 2.4 |
Node (Ω) | 238.3° | ± 2.2 |
Notes | | |
Reference | Tok2019c | |
Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
293.7 |
0.158 |
2001 |
298.5 |
0.145 |
2002 |
304.1 |
0.133 |
2003 |
310.8 |
0.122 |
2004 |
318.8 |
0.113 |
2005 |
327.9 |
0.105 |
2006 |
338.2 |
0.101 |
2007 |
349.0 |
0.099 |
2008 |
359.9 |
0.101 |
2009 |
10.2 |
0.105 |
2010 |
19.5 |
0.111 |
2011 |
27.7 |
0.119 |
2012 |
34.9 |
0.127 |
2013 |
41.3 |
0.134 |
2014 |
47.1 |
0.138 |
2015 |
52.7 |
0.139 |
2016 |
58.5 |
0.133 |
2017 |
65.3 |
0.120 |
2018 |
74.3 |
0.099 |
2019 |
88.9 |
0.075 |
2020 |
115.8 |
0.055 |
2021 |
155.2 |
0.054 |
2022 |
184.6 |
0.072 |
2023 |
200.0 |
0.099 |
2024 |
208.6 |
0.128 |
2025 |
213.9 |
0.158 |
2026 |
217.6 |
0.187 |
2027 |
220.3 |
0.215 |
2028 |
222.4 |
0.242 |
2029 |
224.1 |
0.267 |
2030 |
225.5 |
0.292 |
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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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