09488-5237 B 1663 (HD 85228)
09h 48m 46.74s -52° 36' 56.5" P.A. 326.00 sep 1.3 mag 8.10,11.75 Sp K1V dist. 26.01 pc (84.84 l.y.)
| Coord 2000 |
09488-5237 |
|
Discov num |
B 1663 |
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Comp |
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Coord arcsec 2000 |
09 48 46.74 -52 36 56.5 |
|
| Date first |
1929 |
|
Date last |
2021 |
|
Obs |
35 |
|
| Pa first |
278 |
|
Pa last |
326.2 |
|
P.A. Now (θ) |
326.2° |
|
| Sep first |
1.2 |
|
Sep last |
1.267 |
|
Sep. Now (ρ) |
1.267" |
|
| Mag pri |
8.10 |
|
Mag sec |
11.75 |
|
delta mag (ΔM) |
3.65 |
|
Spectral class |
K1V (yellow-orange) |
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| Pri motion ra |
-252 |
|
Sec motion ra |
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|
| Pri motion dec |
+233 |
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Sec motion dec |
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| Notes |
O
W
(Orbital solution, ) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 85228 |
|
Constellation |
Vela |
|
SAO |
237371 |
|
HIP |
48133 |
|
| Tycho2 |
8598-00309-1 |
|
Gaia DR2 |
5309386795502987776 |
|
HD |
85228 |
|
GL |
Gl 368.1A |
|
| CD |
CD-52 3377 |
|
CP |
CP-52 2830 |
|
Distance |
26.01 |
|
Distance ly |
84.84 |
|
ORBITAL ELEMENTS
| Period (P) | 295y | |
Periastron (T) | 1808.15y | |
Semi-major axis (a) | 1.912a | |
| Eccentricity (e) | 0.4 | |
Inclination (i) | 103.3° | |
Longitude of periastron (ω) | 259.1° | |
| Node (Ω) | 125.5° | |
Notes | n | |
Reference | Tok2018b | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
345.0 |
0.871 |
| 2001 |
343.8 |
0.888 |
| 2002 |
342.6 |
0.906 |
| 2003 |
341.5 |
0.924 |
| 2004 |
340.4 |
0.942 |
| 2005 |
339.4 |
0.960 |
| 2006 |
338.4 |
0.978 |
| 2007 |
337.4 |
0.996 |
| 2008 |
336.5 |
1.015 |
| 2009 |
335.6 |
1.033 |
| 2010 |
334.7 |
1.051 |
| 2011 |
333.9 |
1.070 |
| 2012 |
333.1 |
1.088 |
| 2013 |
332.3 |
1.106 |
| 2014 |
331.6 |
1.125 |
| 2015 |
330.8 |
1.143 |
| 2016 |
330.1 |
1.161 |
| 2017 |
329.4 |
1.179 |
| 2018 |
328.8 |
1.197 |
| 2019 |
328.1 |
1.214 |
| 2020 |
327.5 |
1.232 |
| 2021 |
326.9 |
1.249 |
| 2022 |
326.3 |
1.266 |
| 2023 |
325.7 |
1.283 |
| 2024 |
325.1 |
1.300 |
| 2025 |
324.6 |
1.316 |
| 2026 |
324.1 |
1.333 |
| 2027 |
323.5 |
1.349 |
| 2028 |
323.0 |
1.364 |
| 2029 |
322.5 |
1.380 |
| 2030 |
322.0 |
1.395 |
|
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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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