01077-1557 HDS 148 (HD 6708)
01h 07m 44.93s -15° 56' 58.5" P.A. 23.00 sep 0.1 mag 9.88,10.51 Sp G1V dist. 73.37 pc (239.33 l.y.)
Coord 2000 |
01077-1557 |
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Discov num |
HDS 148 |
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Comp |
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Coord arcsec 2000 |
01 07 44.93 -15 56 58.5 |
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Date first |
1991 |
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Date last |
2021 |
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Obs |
11 |
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Pa first |
0 |
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Pa last |
22.6 |
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P.A. Now (θ) |
22.6° |
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Sep first |
0.1 |
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Sep last |
0.09 |
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Sep. Now (ρ) |
0.11" |
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Mag pri |
9.88 |
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Mag sec |
10.51 |
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delta mag (ΔM) |
0.63 |
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Spectral class |
G1V (yellow) |
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Pri motion ra |
+268 |
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Sec motion ra |
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Pri motion dec |
-026 |
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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 6708 |
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Constellation |
Cetus |
|
SAO |
147624 |
|
HIP |
5295 |
|
Tycho2 |
5851-02163-1 |
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Gaia DR2 |
2359455887674721920 |
|
HD |
6708 |
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BD |
BD-16 183 |
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Distance |
73.37 |
|
Distance ly |
239.33 |
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ORBITAL ELEMENTS
Period (P) | 15.51y | ± 1 |
Periastron (T) | 2019.12y | ± 0.25 |
Semi-major axis (a) | 0.074a | ± 0.02 |
Eccentricity (e) | 0.98 | |
Inclination (i) | 65.9° | ± 14.8 |
Longitude of periastron (ω) | 213.4° | ± 26.4 |
Node (Ω) | 10.2° | ± 8.6 |
Notes | | |
Reference | Tok2021c | |
Equinox | 2000 | |
Last observation | 2021 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
28.5 |
0.097 |
2001 |
29.8 |
0.081 |
2002 |
31.9 |
0.060 |
2003 |
36.5 |
0.033 |
2004 |
21.3 |
0.093 |
2005 |
19.4 |
0.068 |
2006 |
21.1 |
0.090 |
2007 |
22.1 |
0.105 |
2008 |
23.0 |
0.115 |
2009 |
23.7 |
0.122 |
2010 |
24.4 |
0.126 |
2011 |
25.0 |
0.127 |
2012 |
25.7 |
0.125 |
2013 |
26.4 |
0.121 |
2014 |
27.1 |
0.114 |
2015 |
28.0 |
0.104 |
2016 |
29.1 |
0.090 |
2017 |
30.7 |
0.072 |
2018 |
33.6 |
0.047 |
2019 |
56.7 |
0.008 |
2020 |
357.5 |
0.005 |
2021 |
20.3 |
0.080 |
2022 |
21.6 |
0.098 |
2023 |
22.6 |
0.110 |
2024 |
23.4 |
0.119 |
2025 |
24.1 |
0.124 |
2026 |
24.7 |
0.127 |
2027 |
25.3 |
0.126 |
2028 |
26.0 |
0.123 |
2029 |
26.7 |
0.118 |
2030 |
27.5 |
0.109 |
2031 |
28.5 |
0.097 |
2032 |
29.8 |
0.082 |
2033 |
31.8 |
0.061 |
2034 |
36.8 |
0.032 |
2035 |
17.3 |
0.047 |
2036 |
19.3 |
0.067 |
2037 |
21.0 |
0.089 |
2038 |
22.1 |
0.104 |
2039 |
23.0 |
0.115 |
2040 |
23.7 |
0.122 |
2041 |
24.4 |
0.126 |
2042 |
25.0 |
0.127 |
2043 |
25.7 |
0.125 |
2044 |
26.3 |
0.121 |
2045 |
27.1 |
0.114 |
2046 |
28.0 |
0.104 |
2047 |
29.1 |
0.090 |
2048 |
30.6 |
0.072 |
2049 |
33.5 |
0.048 |
2050 |
53.6 |
0.009 |
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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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