06003-3102 HJ 3823 AC (HD 40887)
06h 00m 19.69s -31° 01' 54.0" P.A. 2.00 sep 2.9 mag 8.94,8.67 Sp K3/4V dist. 16.39 pc (53.46 l.y.)
Coord 2000 |
06003-3102 |
|
Discov num |
HJ 3823 |
|
Comp |
AC |
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Coord arcsec 2000 |
06 00 19.69 -31 01 54.0 |
|
Date first |
1835 |
|
Date last |
2016 |
|
Obs |
75 |
|
Pa first |
132 |
|
Pa last |
1.8 |
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P.A. Now (θ) |
1.8° |
|
Sep first |
3.3 |
|
Sep last |
2.905 |
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Sep. Now (ρ) |
2.905" |
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Mag pri |
8.94 |
|
Mag sec |
8.67 |
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delta mag (ΔM) |
0.27 |
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Spectral class |
K3/4V (yellow-orange) |
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Pri motion ra |
-047 |
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Sec motion ra |
-044 |
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Pri motion dec |
+041 |
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Sec motion dec |
+102 |
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Notes |
N
O
P
(See Notes, Orbital solution, 100-year proper motion) |
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rPM=0.55
This double is physical.
06003-3102 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
06 00 20 -31 01 54 |
HU 1399 AB |
2021 |
76 |
77 |
0.3 |
8.94 |
10.19 |
1.25 |
Y |
|
Show |
HD 40887 |
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06 00 20 -31 01 54 |
HJ 3823 AC |
2016 |
75 |
2 |
2.9 |
8.94 |
8.67 |
0.27 |
Y |
<=== |
Show |
|
|
06 00 20 -31 01 54 |
B 2595 AD |
2015 |
20 |
145 |
39.7 |
8.94 |
12.80 |
3.86 |
|
|
Show |
|
|
06 00 20 -31 01 54 |
TOK 9 CE |
2021 |
25 |
161 |
0.2 |
8.67 |
13.13 |
4.46 |
Y |
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 40887 |
|
Constellation |
Columba |
|
HIP |
28442 |
|
Tycho2 |
7071-02044-1 |
|
HD |
40887 |
|
GL |
Gl 225.2A |
|
CD |
CD-31 2902 |
|
CP |
CP-31 976 |
|
Distance |
16.39 |
|
Distance ly |
53.46 |
|
ORBITAL ELEMENTS
Period (P) | 2100y | |
Periastron (T) | 1934y | |
Semi-major axis (a) | 11.4a | |
Eccentricity (e) | 0.2 | |
Inclination (i) | 100.2° | |
Longitude of periastron (ω) | 85.1° | |
Node (Ω) | 147.6° | |
Notes | n | |
Reference | Tok2020k | |
Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
6.6 |
2.526 |
2001 |
6.0 |
2.557 |
2002 |
5.4 |
2.588 |
2003 |
4.8 |
2.620 |
2004 |
4.3 |
2.652 |
2005 |
3.7 |
2.684 |
2006 |
3.2 |
2.716 |
2007 |
2.7 |
2.749 |
2008 |
2.2 |
2.781 |
2009 |
1.7 |
2.814 |
2010 |
1.2 |
2.847 |
2011 |
0.7 |
2.880 |
2012 |
0.3 |
2.913 |
2013 |
359.8 |
2.946 |
2014 |
359.4 |
2.980 |
2015 |
359.0 |
3.013 |
2016 |
358.5 |
3.047 |
2017 |
358.1 |
3.081 |
2018 |
357.7 |
3.115 |
2019 |
357.3 |
3.149 |
2020 |
357.0 |
3.183 |
2021 |
356.6 |
3.217 |
2022 |
356.2 |
3.251 |
2023 |
355.8 |
3.286 |
2024 |
355.5 |
3.320 |
2025 |
355.1 |
3.354 |
2026 |
354.8 |
3.389 |
2027 |
354.5 |
3.424 |
2028 |
354.1 |
3.458 |
2029 |
353.8 |
3.493 |
2030 |
353.5 |
3.528 |
|
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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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