02158-1814 HTG 1 (HD 14001)
02h 15m 46.15s -18° 14' 17.7" P.A. 166.00 sep 2.0 mag 8.49,9.25 Sp K3V dist. 23.15 pc (75.52 l.y.)
Coord 2000 |
02158-1814 |
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Discov num |
HTG 1 |
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Comp |
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Coord arcsec 2000 |
02 15 46.15 -18 14 17.7 |
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Date first |
1879 |
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Date last |
2017 |
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Obs |
97 |
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Pa first |
312 |
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Pa last |
166 |
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P.A. Now (θ) |
166° |
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Sep first |
2.2 |
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Sep last |
2.022 |
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Sep. Now (ρ) |
2.022" |
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Mag pri |
8.49 |
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Mag sec |
9.25 |
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delta mag (ΔM) |
0.76 |
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Spectral class |
K3V (yellow-orange) |
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Pri motion ra |
-052 |
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Sec motion ra |
-052 |
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Pri motion dec |
-135 |
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Sec motion dec |
-135 |
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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 14001 |
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Constellation |
Cetus |
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SAO |
148298 |
|
HIP |
10542 |
|
Tycho2 |
5859-01144-1 |
|
Gaia DR2 |
5143341362661301632 |
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HD |
14001 |
|
GC |
2723 |
|
ADS |
1733 |
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GL |
Gl 91.2A |
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BD |
BD-18 394 |
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Distance |
23.15 |
|
Distance ly |
75.52 |
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ORBITAL ELEMENTS
Period (P) | 313.5904y | ± 62.3106 |
Periastron (T) | 1969.1696y | ± 14.6486 |
Semi-major axis (a) | 2.26371a | ± 0.1674 |
Eccentricity (e) | 0.17464 | ± 0.11812 |
Inclination (i) | 38.499° | ± 4.117 |
Longitude of periastron (ω) | 75.405° | ± 33.85 |
Node (Ω) | 9.608° | ± 9.193 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
141.1 |
1.693 |
2001 |
142.7 |
1.709 |
2002 |
144.2 |
1.726 |
2003 |
145.8 |
1.742 |
2004 |
147.2 |
1.759 |
2005 |
148.7 |
1.776 |
2006 |
150.1 |
1.793 |
2007 |
151.5 |
1.810 |
2008 |
152.9 |
1.827 |
2009 |
154.2 |
1.844 |
2010 |
155.5 |
1.861 |
2011 |
156.8 |
1.878 |
2012 |
158.1 |
1.895 |
2013 |
159.4 |
1.912 |
2014 |
160.6 |
1.928 |
2015 |
161.8 |
1.945 |
2016 |
163.0 |
1.961 |
2017 |
164.2 |
1.977 |
2018 |
165.3 |
1.993 |
2019 |
166.4 |
2.009 |
2020 |
167.6 |
2.025 |
2021 |
168.7 |
2.040 |
2022 |
169.7 |
2.055 |
2023 |
170.8 |
2.070 |
2024 |
171.9 |
2.084 |
2025 |
172.9 |
2.098 |
2026 |
173.9 |
2.112 |
2027 |
174.9 |
2.126 |
2028 |
175.9 |
2.139 |
2029 |
176.9 |
2.152 |
2030 |
177.9 |
2.165 |
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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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