06533-1902 CHR 169 (HD 50644)
06h 53m 18.84s -19° 01' 58.0" sep 0.1 mag 5.70,8.80 Sp F1V dist. 95.51 pc (311.55 l.y.)
| Coord 2000 |
06533-1902 |
|
Discov num |
CHR 169 |
|
Comp |
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Coord arcsec 2000 |
06 53 18.84 -19 01 58.0 |
|
| Date first |
1988 |
|
Date last |
2021 |
|
Obs |
14 |
|
| Pa first |
166 |
|
Pa last |
0.2 |
|
P.A. Now (θ) |
353.6° |
|
| Sep first |
0.2 |
|
Sep last |
0.141 |
|
Sep. Now (ρ) |
0.166" |
|
| Mag pri |
5.70 |
|
Mag sec |
8.80 |
|
delta mag (ΔM) |
3.1 |
|
Spectral class |
F1V (yellow-white) |
|
| Pri motion ra |
-050 |
|
Sec motion ra |
|
|
| Pri motion dec |
+004 |
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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 50644 |
|
Constellation |
Canis Major |
|
SAO |
152055 |
|
HIP |
33077 |
|
| Tycho2 |
5958-00650-1 |
|
Gaia DR2 |
2933243933379592064 |
|
HD |
50644 |
|
HR |
2565 |
|
| GC |
9021 |
|
BD |
BD-18 1591 |
|
Distance |
95.51 |
|
Distance ly |
311.55 |
|
ORBITAL ELEMENTS
| Period (P) | 37.37y | ± 0.6 |
Periastron (T) | 2017.8y | ± 0.08 |
Semi-major axis (a) | 0.186a | ± 0.003 |
| Eccentricity (e) | 0.487 | ± 0.02 |
Inclination (i) | 107.2° | ± 1 |
Longitude of periastron (ω) | 75.7° | ± 1.2 |
| Node (Ω) | 174.5° | ± 0.9 |
Notes | | |
Reference | Tok2019c | |
| Equinox | | |
Last observation | 2018 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
297.6 |
0.096 |
| 2001 |
287.3 |
0.087 |
| 2002 |
275.2 |
0.082 |
| 2003 |
261.8 |
0.079 |
| 2004 |
248.2 |
0.081 |
| 2005 |
235.6 |
0.085 |
| 2006 |
224.7 |
0.093 |
| 2007 |
215.6 |
0.102 |
| 2008 |
208.1 |
0.112 |
| 2009 |
201.8 |
0.122 |
| 2010 |
196.5 |
0.131 |
| 2011 |
191.7 |
0.138 |
| 2012 |
187.4 |
0.143 |
| 2013 |
183.2 |
0.143 |
| 2014 |
178.9 |
0.138 |
| 2015 |
173.9 |
0.125 |
| 2016 |
167.2 |
0.101 |
| 2017 |
154.7 |
0.066 |
| 2018 |
109.7 |
0.031 |
| 2019 |
30.2 |
0.048 |
| 2020 |
9.8 |
0.088 |
| 2021 |
1.8 |
0.122 |
| 2022 |
357.1 |
0.148 |
| 2023 |
353.6 |
0.166 |
| 2024 |
350.7 |
0.178 |
| 2025 |
348.1 |
0.185 |
| 2026 |
345.6 |
0.189 |
| 2027 |
343.2 |
0.188 |
| 2028 |
340.8 |
0.186 |
| 2029 |
338.2 |
0.180 |
| 2030 |
335.4 |
0.173 |
|
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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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