03014+0615 HDS 385 (HD 18774)
03h 01m 22.67s +06° 14' 57.6" P.A. 173.00 sep 0.2 mag 9.54,9.78 Sp G4.5V+G7V dist. 55.31 pc (180.42 l.y.)
Coord 2000 |
03014+0615 |
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Discov num |
HDS 385 |
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Comp |
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Coord arcsec 2000 |
03 01 22.67 +06 14 57.6 |
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Date first |
1991 |
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Date last |
2020 |
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Obs |
28 |
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Pa first |
168 |
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Pa last |
173.1 |
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P.A. Now (θ) |
190.5° |
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Sep first |
0.2 |
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Sep last |
0.161 |
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Sep. Now (ρ) |
0.127" |
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Mag pri |
9.54 |
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Mag sec |
9.78 |
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delta mag (ΔM) |
0.24 |
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Spectral class |
G4.5V+G7V (yellow/yellow) |
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Pri motion ra |
+036 |
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Sec motion ra |
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Pri motion dec |
-090 |
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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 18774 |
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Constellation |
Cetus |
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SAO |
110906 |
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HIP |
14075 |
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Tycho2 |
0061-00855-1 |
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Gaia DR2 |
7001556902355840 |
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HD |
18774 |
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BD |
BD+05 438 |
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Distance |
55.31 |
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Distance ly |
180.42 |
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ORBITAL ELEMENTS
Period (P) | 14.893y | ± 0.042 |
Periastron (T) | 2013.111y | ± 0.055 |
Semi-major axis (a) | 0.1169a | ± 0.0011 |
Eccentricity (e) | 0.419 | ± 0.005 |
Inclination (i) | 54.3° | ± 0.7 |
Longitude of periastron (ω) | 195.5° | ± 1.8 |
Node (Ω) | 161.4° | ± 0.9 |
Notes | n | |
Reference | Tok2019c | |
Equinox | | |
Last observation | 2017 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
96.1 |
0.060 |
2001 |
127.9 |
0.094 |
2002 |
142.7 |
0.125 |
2003 |
152.2 |
0.147 |
2004 |
159.6 |
0.160 |
2005 |
166.2 |
0.164 |
2006 |
172.9 |
0.160 |
2007 |
180.2 |
0.148 |
2008 |
189.3 |
0.129 |
2009 |
202.2 |
0.105 |
2010 |
223.6 |
0.079 |
2011 |
261.7 |
0.061 |
2012 |
308.3 |
0.065 |
2013 |
346.3 |
0.068 |
2014 |
37.4 |
0.050 |
2015 |
101.1 |
0.063 |
2016 |
130.0 |
0.097 |
2017 |
143.9 |
0.127 |
2018 |
153.1 |
0.149 |
2019 |
160.3 |
0.161 |
2020 |
166.9 |
0.164 |
2021 |
173.6 |
0.159 |
2022 |
181.1 |
0.146 |
2023 |
190.5 |
0.127 |
2024 |
204.0 |
0.102 |
2025 |
226.7 |
0.076 |
2026 |
266.8 |
0.060 |
2027 |
312.7 |
0.066 |
2028 |
350.4 |
0.066 |
2029 |
44.9 |
0.049 |
2030 |
105.6 |
0.066 |
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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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