06234-3001 DAW 120 (HD 44970)
06h 23m 25.77s -30° 01' 00.4" P.A. 254.00 sep 0.2 mag 9.20,9.40 Sp A9V
Coord 2000 |
06234-3001 |
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Discov num |
DAW 120 |
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Comp |
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Coord arcsec 2000 |
06 23 25.77 -30 01 00.4 |
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Date first |
1923 |
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Date last |
2019 |
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Obs |
9 |
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Pa first |
88 |
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Pa last |
253.6 |
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P.A. Now (θ) |
253.6° |
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Sep first |
0.5 |
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Sep last |
0.154 |
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Sep. Now (ρ) |
0.154" |
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Mag pri |
9.20 |
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Mag sec |
9.40 |
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delta mag (ΔM) |
0.2 |
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Spectral class |
A9V (white) |
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Pri motion ra |
-003 |
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Sec motion ra |
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Pri motion dec |
-001 |
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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 44970 |
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Constellation |
Canis Major |
|
SAO |
171675 |
|
Tycho2 |
7073-01173-1 |
|
Gaia DR2 |
2895061433592812800 |
|
HD |
44970 |
|
ADS |
5019 |
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ORBITAL ELEMENTS
Period (P) | 375y | |
Periastron (T) | 2034.82y | |
Semi-major axis (a) | 0.407a | |
Eccentricity (e) | 0.27 | |
Inclination (i) | 83.8° | |
Longitude of periastron (ω) | 145.4° | |
Node (Ω) | 84.8° | |
Notes | | |
Reference | Tok2020g | |
Equinox | 2000 | |
Last observation | 2019 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
165.9 |
0.036 |
2001 |
179.1 |
0.035 |
2002 |
191.9 |
0.037 |
2003 |
203.3 |
0.040 |
2004 |
212.8 |
0.044 |
2005 |
220.5 |
0.049 |
2006 |
226.6 |
0.055 |
2007 |
231.4 |
0.062 |
2008 |
235.4 |
0.068 |
2009 |
238.6 |
0.075 |
2010 |
241.3 |
0.082 |
2011 |
243.5 |
0.090 |
2012 |
245.4 |
0.097 |
2013 |
247.1 |
0.104 |
2014 |
248.5 |
0.111 |
2015 |
249.7 |
0.119 |
2016 |
250.8 |
0.126 |
2017 |
251.8 |
0.133 |
2018 |
252.7 |
0.140 |
2019 |
253.5 |
0.147 |
2020 |
254.2 |
0.155 |
2021 |
254.9 |
0.161 |
2022 |
255.5 |
0.168 |
2023 |
256.1 |
0.175 |
2024 |
256.6 |
0.182 |
2025 |
257.1 |
0.188 |
2026 |
257.5 |
0.195 |
2027 |
257.9 |
0.201 |
2028 |
258.3 |
0.207 |
2029 |
258.7 |
0.213 |
2030 |
259.1 |
0.219 |
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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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