06201-0752 HDS 866 (HD 44178)
06h 20m 06.83s -07° 52' 19.0" P.A. 262.00 sep 0.1 mag 7.36,8.42 Sp A5 dist. 122.55 pc (399.76 l.y.)
Coord 2000 |
06201-0752 |
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Discov num |
HDS 866 |
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Comp |
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Coord arcsec 2000 |
06 20 06.83 -07 52 19.0 |
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Date first |
1991 |
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Date last |
2020 |
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Obs |
10 |
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Pa first |
98 |
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Pa last |
261.8 |
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P.A. Now (θ) |
278.6° |
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Sep first |
0.2 |
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Sep last |
0.108 |
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Sep. Now (ρ) |
0.03" |
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Mag pri |
7.36 |
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Mag sec |
8.42 |
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delta mag (ΔM) |
1.06 |
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Spectral class |
A5 (white) |
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Pri motion ra |
-009 |
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Sec motion ra |
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Pri motion dec |
-019 |
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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 44178 |
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Constellation |
Monoceros |
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SAO |
133124 |
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HIP |
30105 |
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Tycho2 |
5363-02398-1 |
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Gaia DR2 |
3006664303352654208 |
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HD |
44178 |
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GC |
8150 |
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BD |
BD-07 1378 |
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Distance |
122.55 |
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Distance ly |
399.76 |
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ORBITAL ELEMENTS
Period (P) | 58.23y | |
Periastron (T) | 2023.03y | |
Semi-major axis (a) | 0.186a | |
Eccentricity (e) | 0.66 | |
Inclination (i) | 81.4° | |
Longitude of periastron (ω) | 243.7° | |
Node (Ω) | 82.6° | |
Notes | | |
Reference | Tok2019c | |
Equinox | | |
Last observation | 2017 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
110.4 |
0.092 |
2001 |
113.5 |
0.083 |
2002 |
117.4 |
0.075 |
2003 |
122.3 |
0.066 |
2004 |
128.5 |
0.058 |
2005 |
136.7 |
0.051 |
2006 |
147.5 |
0.044 |
2007 |
161.1 |
0.040 |
2008 |
176.9 |
0.038 |
2009 |
193.1 |
0.039 |
2010 |
207.5 |
0.043 |
2011 |
219.0 |
0.049 |
2012 |
227.8 |
0.056 |
2013 |
234.7 |
0.063 |
2014 |
240.0 |
0.071 |
2015 |
244.3 |
0.078 |
2016 |
247.9 |
0.085 |
2017 |
251.0 |
0.091 |
2018 |
253.8 |
0.095 |
2019 |
256.4 |
0.096 |
2020 |
259.1 |
0.093 |
2021 |
262.1 |
0.083 |
2022 |
266.6 |
0.063 |
2023 |
278.6 |
0.030 |
2024 |
43.8 |
0.016 |
2025 |
72.2 |
0.053 |
2026 |
77.4 |
0.086 |
2027 |
79.9 |
0.112 |
2028 |
81.5 |
0.133 |
2029 |
82.7 |
0.150 |
2030 |
83.7 |
0.164 |
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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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