05505-0310 HDS 785 (HD 39160)
05h 50m 32.10s -03° 10' 04.8" P.A. 12.00 sep 0.1 mag 9.53,9.57 Sp F8 dist. 153.37 pc (500.29 l.y.)
| Coord 2000 |
05505-0310 |
|
Discov num |
HDS 785 |
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Comp |
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Coord arcsec 2000 |
05 50 32.10 -03 10 04.8 |
|
| Date first |
1991 |
|
Date last |
2021 |
|
Obs |
12 |
|
| Pa first |
354 |
|
Pa last |
12 |
|
P.A. Now (θ) |
12° |
|
| Sep first |
0.3 |
|
Sep last |
0.066 |
|
Sep. Now (ρ) |
0.066" |
|
| Mag pri |
9.53 |
|
Mag sec |
9.57 |
|
delta mag (ΔM) |
0.04 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
-010 |
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Sec motion ra |
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| Pri motion dec |
-007 |
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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 39160 |
|
Constellation |
Orion |
|
SAO |
132581 |
|
HIP |
27589 |
|
| Tycho2 |
4772-00949-1 |
|
Gaia DR2 |
3024064006141919488 |
|
HD |
39160 |
|
BD |
BD-03 1208 |
|
| Distance |
153.37 |
|
Distance ly |
500.29 |
|
ORBITAL ELEMENTS
| Period (P) | 105.6y | |
Periastron (T) | 2021.9y | |
Semi-major axis (a) | 0.208a | |
| Eccentricity (e) | 0.65 | |
Inclination (i) | 118° | |
Longitude of periastron (ω) | 147.9° | |
| Node (Ω) | 170.2° | |
Notes | | |
Reference | Tok2019c | |
| Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
168.4 |
0.253 |
| 2001 |
167.6 |
0.246 |
| 2002 |
166.7 |
0.239 |
| 2003 |
165.7 |
0.231 |
| 2004 |
164.7 |
0.223 |
| 2005 |
163.6 |
0.214 |
| 2006 |
162.4 |
0.205 |
| 2007 |
161.1 |
0.195 |
| 2008 |
159.6 |
0.184 |
| 2009 |
158.0 |
0.173 |
| 2010 |
156.1 |
0.161 |
| 2011 |
153.9 |
0.148 |
| 2012 |
151.2 |
0.135 |
| 2013 |
148.0 |
0.121 |
| 2014 |
143.9 |
0.106 |
| 2015 |
138.4 |
0.091 |
| 2016 |
130.7 |
0.075 |
| 2017 |
118.9 |
0.060 |
| 2018 |
100.2 |
0.047 |
| 2019 |
72.3 |
0.041 |
| 2020 |
42.4 |
0.044 |
| 2021 |
20.2 |
0.054 |
| 2022 |
5.4 |
0.065 |
| 2023 |
354.6 |
0.074 |
| 2024 |
345.8 |
0.080 |
| 2025 |
337.9 |
0.082 |
| 2026 |
330.2 |
0.083 |
| 2027 |
322.3 |
0.081 |
| 2028 |
314.3 |
0.080 |
| 2029 |
305.9 |
0.078 |
| 2030 |
297.2 |
0.078 |
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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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