04290+1610 HU 1080 (HD 28363)
04h 28m 59.78s +16° 09' 32.7" P.A. 266.00 sep 0.2 mag 6.85,8.38 Sp F7V dist. 48.43 pc (157.98 l.y.)
Coord 2000 |
04290+1610 |
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Discov num |
HU 1080 |
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Comp |
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Coord arcsec 2000 |
04 28 59.78 +16 09 32.7 |
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Date first |
1904 |
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Date last |
2016 |
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Obs |
130 |
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Pa first |
263 |
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Pa last |
266.4 |
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P.A. Now (θ) |
260.7° |
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Sep first |
0.4 |
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Sep last |
0.183 |
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Sep. Now (ρ) |
0.391" |
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Mag pri |
6.85 |
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Mag sec |
8.38 |
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delta mag (ΔM) |
1.53 |
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Spectral class |
F7V (yellow-white) |
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Pri motion ra |
+105 |
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Sec motion ra |
+105 |
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Pri motion dec |
-025 |
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Sec motion dec |
-025 |
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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 28363 |
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Constellation |
Taurus |
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SAO |
93961 |
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HIP |
20916 |
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Tycho2 |
1265-00791-1 |
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Gaia DR2 |
3312892757136810880 |
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HD |
28363 |
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GC |
5445 |
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ADS |
3248 |
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BD |
BD+15 633 |
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Distance |
48.43 |
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Distance ly |
157.98 |
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ORBITAL ELEMENTS
Period (P) | 40.752y | ± 0.034 |
Periastron (T) | 1960.845y | ± 0.07 |
Semi-major axis (a) | 0.3749a | ± 0.001 |
Eccentricity (e) | 0.3179 | ± 0.0024 |
Inclination (i) | 93.06° | ± 0.078 |
Longitude of periastron (ω) | 317.46° | ± 0.57 |
Node (Ω) | 78.395° | ± 0.06 |
Notes | n | |
Reference | Trr2019b | |
Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
87.1 |
0.088 |
2001 |
82.5 |
0.154 |
2002 |
80.6 |
0.209 |
2003 |
79.4 |
0.249 |
2004 |
78.5 |
0.272 |
2005 |
77.6 |
0.278 |
2006 |
76.8 |
0.270 |
2007 |
75.9 |
0.249 |
2008 |
74.7 |
0.220 |
2009 |
73.2 |
0.183 |
2010 |
70.8 |
0.142 |
2011 |
66.2 |
0.098 |
2012 |
54.2 |
0.054 |
2013 |
351.2 |
0.023 |
2014 |
285.1 |
0.052 |
2015 |
272.6 |
0.097 |
2016 |
268.0 |
0.142 |
2017 |
265.6 |
0.185 |
2018 |
264.1 |
0.227 |
2019 |
263.1 |
0.266 |
2020 |
262.3 |
0.302 |
2021 |
261.7 |
0.335 |
2022 |
261.2 |
0.365 |
2023 |
260.7 |
0.391 |
2024 |
260.4 |
0.413 |
2025 |
260.0 |
0.431 |
2026 |
259.7 |
0.444 |
2027 |
259.4 |
0.451 |
2028 |
259.1 |
0.454 |
2029 |
258.8 |
0.451 |
2030 |
258.4 |
0.442 |
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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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