09074-4357 B 1646 AB
09h 07m 23.26s -43° 57' 18.3" P.A. 265.00 sep 0.0 mag 9.50,9.90 Sp A5/7II
Coord 2000 |
09074-4357 |
|
Discov num |
B 1646 |
|
Comp |
AB |
|
Coord arcsec 2000 |
09 07 23.26 -43 57 18.3 |
|
Date first |
1929 |
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Date last |
2021 |
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Obs |
9 |
|
Pa first |
24 |
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Pa last |
265.4 |
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P.A. Now (θ) |
265.4° |
|
Sep first |
0.3 |
|
Sep last |
0.041 |
|
Sep. Now (ρ) |
0.041" |
|
Mag pri |
9.50 |
|
Mag sec |
9.90 |
|
delta mag (ΔM) |
0.4 |
|
Spectral class |
A5/7II (white) |
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Pri motion ra |
-010 |
|
Sec motion ra |
|
|
Pri motion dec |
+001 |
|
Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
09074-4357 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
220870 |
09 07 23 -43 57 18 |
B 1646 AB |
2021 |
9 |
265 |
0.0 |
9.50 |
9.90 |
0.40 |
Y |
<=== |
Show |
HD 78547 |
220870 |
09 07 23 -43 57 18 |
HJ 4180 AB,C |
2015 |
9 |
128 |
22.1 |
8.55 |
10.09 |
1.54 |
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Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Vela |
|
SAO |
220870 |
|
Tycho2 |
7689-02574-1 |
|
Gaia DR2 |
5331063701595081216 |
|
HD |
78547 |
|
DM |
CP-43 3354 |
|
ORBITAL ELEMENTS
Period (P) | 208y | |
Periastron (T) | 2029.4y | |
Semi-major axis (a) | 0.188a | |
Eccentricity (e) | 0.6 | |
Inclination (i) | 116.2° | |
Longitude of periastron (ω) | 161.1° | |
Node (Ω) | 15.9° | |
Notes | | |
Reference | Tok2020e | |
Equinox | | |
Last observation | 2019 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
356.7 |
0.148 |
2001 |
355.7 |
0.143 |
2002 |
354.6 |
0.138 |
2003 |
353.4 |
0.132 |
2004 |
352.1 |
0.127 |
2005 |
350.7 |
0.121 |
2006 |
349.2 |
0.115 |
2007 |
347.5 |
0.109 |
2008 |
345.5 |
0.103 |
2009 |
343.4 |
0.097 |
2010 |
340.9 |
0.091 |
2011 |
338.1 |
0.085 |
2012 |
334.9 |
0.079 |
2013 |
331.1 |
0.073 |
2014 |
326.7 |
0.067 |
2015 |
321.4 |
0.061 |
2016 |
315.2 |
0.056 |
2017 |
307.7 |
0.052 |
2018 |
298.9 |
0.048 |
2019 |
288.8 |
0.045 |
2020 |
277.7 |
0.044 |
2021 |
266.2 |
0.044 |
2022 |
255.1 |
0.045 |
2023 |
244.9 |
0.047 |
2024 |
236.0 |
0.051 |
2025 |
228.2 |
0.055 |
2026 |
221.6 |
0.059 |
2027 |
215.8 |
0.063 |
2028 |
210.7 |
0.067 |
2029 |
206.2 |
0.071 |
2030 |
202.0 |
0.074 |
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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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