06143-1729 A 3025 (HD 43218)
06h 14m 17.67s -17° 28' 48.0" P.A. 230.00 sep 0.2 mag 8.38,9.16 Sp G2V dist. 75.93 pc (247.68 l.y.)
| Coord 2000 |
06143-1729 |
|
Discov num |
A 3025 |
|
Comp |
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Coord arcsec 2000 |
06 14 17.67 -17 28 48.0 |
|
| Date first |
1926 |
|
Date last |
2020 |
|
Obs |
19 |
|
| Pa first |
136 |
|
Pa last |
230.4 |
|
P.A. Now (θ) |
230.4° |
|
| Sep first |
1.0 |
|
Sep last |
0.177 |
|
Sep. Now (ρ) |
0.177" |
|
| Mag pri |
8.38 |
|
Mag sec |
9.16 |
|
delta mag (ΔM) |
0.78 |
|
Spectral class |
G2V (yellow) |
|
| Pri motion ra |
+040 |
|
Sec motion ra |
+040 |
|
| Pri motion dec |
-064 |
|
Sec motion dec |
-064 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 43218 |
|
Constellation |
Canis Major |
|
SAO |
151254 |
|
HIP |
29601 |
|
| Tycho2 |
5937-02225-1 |
|
Gaia DR2 |
2944510732101681792 |
|
HD |
43218 |
|
BD |
BD-17 1407 |
|
| Distance |
75.93 |
|
Distance ly |
247.68 |
|
ORBITAL ELEMENTS
| Period (P) | 226y | ± 17 |
Periastron (T) | 2016.09y | ± 0.04 |
Semi-major axis (a) | 0.588a | ± 0.027 |
| Eccentricity (e) | 0.85 | ± 0.008 |
Inclination (i) | 154.7° | ± 4.8 |
Longitude of periastron (ω) | 128.7° | ± 13 |
| Node (Ω) | 94.9° | ± 11.6 |
Notes | | |
Reference | Tok2019c | |
| Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
102.5 |
0.432 |
| 2001 |
101.1 |
0.414 |
| 2002 |
99.5 |
0.396 |
| 2003 |
97.7 |
0.377 |
| 2004 |
95.8 |
0.357 |
| 2005 |
93.6 |
0.336 |
| 2006 |
91.1 |
0.315 |
| 2007 |
88.2 |
0.292 |
| 2008 |
84.9 |
0.269 |
| 2009 |
80.9 |
0.244 |
| 2010 |
76.0 |
0.219 |
| 2011 |
69.8 |
0.192 |
| 2012 |
61.4 |
0.164 |
| 2013 |
49.6 |
0.136 |
| 2014 |
31.8 |
0.109 |
| 2015 |
4.0 |
0.088 |
| 2016 |
326.8 |
0.083 |
| 2017 |
292.2 |
0.094 |
| 2018 |
267.5 |
0.114 |
| 2019 |
250.5 |
0.136 |
| 2020 |
238.4 |
0.159 |
| 2021 |
229.2 |
0.181 |
| 2022 |
222.1 |
0.203 |
| 2023 |
216.3 |
0.224 |
| 2024 |
211.5 |
0.244 |
| 2025 |
207.4 |
0.264 |
| 2026 |
203.9 |
0.284 |
| 2027 |
200.9 |
0.302 |
| 2028 |
198.2 |
0.321 |
| 2029 |
195.8 |
0.338 |
| 2030 |
193.6 |
0.356 |
|
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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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