03140+0044 STF 367 (HD 20115)
03h 14m 02.91s +00° 44' 21.3" P.A. 129.00 sep 1.3 mag 8.14,8.17 Sp F8 dist. 65.75 pc (214.48 l.y.)
Coord 2000 |
03140+0044 |
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Discov num |
STF 367 |
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Comp |
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Coord arcsec 2000 |
03 14 02.91 +00 44 21.3 |
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Date first |
1831 |
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Date last |
2018 |
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Obs |
171 |
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Pa first |
281 |
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Pa last |
129.2 |
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P.A. Now (θ) |
128.4° |
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Sep first |
1.0 |
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Sep last |
1.293 |
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Sep. Now (ρ) |
1.274" |
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Mag pri |
8.14 |
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Mag sec |
8.17 |
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delta mag (ΔM) |
0.03 |
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Spectral class |
F8 (yellow-white) |
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Pri motion ra |
+076 |
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Sec motion ra |
+076 |
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Pri motion dec |
-014 |
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Sec motion dec |
-014 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 20115 |
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Constellation |
Cetus |
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SAO |
111062 |
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HIP |
15058 |
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Tycho2 |
0056-00850-1 |
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Gaia DR2 |
3266941486151475456 |
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HD |
20115 |
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GC |
3862 |
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ADS |
2416 |
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BD |
BD+00 542 |
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Distance |
65.75 |
|
Distance ly |
214.48 |
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ORBITAL ELEMENTS
Period (P) | 370.1079y | ± 112.7762 |
Periastron (T) | 1838.1867y | ± 8.3312 |
Semi-major axis (a) | 1.0048a | ± 0.10748 |
Eccentricity (e) | 0.4734 | ± 0.14413 |
Inclination (i) | 127.821° | ± 11.928 |
Longitude of periastron (ω) | 139.915° | ± 30.091 |
Node (Ω) | 101.034° | ± 5.698 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
136.5 |
1.172 |
2001 |
136.2 |
1.177 |
2002 |
135.8 |
1.182 |
2003 |
135.4 |
1.187 |
2004 |
135.0 |
1.192 |
2005 |
134.7 |
1.197 |
2006 |
134.3 |
1.202 |
2007 |
133.9 |
1.206 |
2008 |
133.6 |
1.211 |
2009 |
133.2 |
1.216 |
2010 |
132.8 |
1.220 |
2011 |
132.5 |
1.225 |
2012 |
132.1 |
1.229 |
2013 |
131.8 |
1.234 |
2014 |
131.4 |
1.238 |
2015 |
131.1 |
1.242 |
2016 |
130.7 |
1.246 |
2017 |
130.4 |
1.251 |
2018 |
130.1 |
1.255 |
2019 |
129.7 |
1.259 |
2020 |
129.4 |
1.262 |
2021 |
129.1 |
1.266 |
2022 |
128.7 |
1.270 |
2023 |
128.4 |
1.274 |
2024 |
128.1 |
1.277 |
2025 |
127.8 |
1.281 |
2026 |
127.4 |
1.284 |
2027 |
127.1 |
1.288 |
2028 |
126.8 |
1.291 |
2029 |
126.5 |
1.294 |
2030 |
126.2 |
1.298 |
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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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