06003-3102 HU 1399 AB
06h 00m 19.69s -31° 01' 54.0" P.A. 77.00 sep 0.3 mag 8.94,10.19 Sp K3/4V dist. 16.39 pc (53.46 l.y.)
Coord 2000 |
06003-3102 |
|
Discov num |
HU 1399 |
|
Comp |
AB |
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Coord arcsec 2000 |
06 00 19.69 -31 01 54.0 |
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Date first |
1911 |
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Date last |
2021 |
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Obs |
76 |
|
Pa first |
340 |
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Pa last |
76.9 |
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P.A. Now (θ) |
76.3° |
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Sep first |
0.8 |
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Sep last |
0.348 |
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Sep. Now (ρ) |
0.34" |
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Mag pri |
8.94 |
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Mag sec |
10.19 |
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delta mag (ΔM) |
1.25 |
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Spectral class |
K3/4V (yellow-orange) |
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Pri motion ra |
-465 |
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Sec motion ra |
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Pri motion dec |
+405 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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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 |
|
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 |
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Show |
|
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06 00 20 -31 01 54 |
TOK 9 CE |
2021 |
25 |
161 |
0.2 |
8.67 |
13.13 |
4.46 |
Y |
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Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Columba |
|
HIP |
28442 |
|
Tycho2 |
7071-02045-1 |
|
HD |
40887 |
|
GL |
Gl 225.2A |
|
CD |
CD-31 2902 |
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CP |
CP-31 976 |
|
Distance |
16.39 |
|
Distance ly |
53.46 |
|
ORBITAL ELEMENTS
Period (P) | 67.45y | ± 0.14 |
Periastron (T) | 1997.85y | ± 0.17 |
Semi-major axis (a) | 0.946a | ± 0.01 |
Eccentricity (e) | 0.516 | ± 0.013 |
Inclination (i) | 101.2° | ± 0.4 |
Longitude of periastron (ω) | 278.5° | ± 0.5 |
Node (Ω) | 126.7° | ± 0.5 |
Notes | n | |
Reference | Tok2014a | |
Equinox | 2000 | |
Last observation | 2013 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
136.6 |
0.376 |
2001 |
132.2 |
0.482 |
2002 |
129.3 |
0.568 |
2003 |
127.1 |
0.633 |
2004 |
125.3 |
0.681 |
2005 |
123.7 |
0.714 |
2006 |
122.1 |
0.735 |
2007 |
120.7 |
0.745 |
2008 |
119.3 |
0.746 |
2009 |
117.8 |
0.740 |
2010 |
116.4 |
0.728 |
2011 |
114.8 |
0.711 |
2012 |
113.2 |
0.690 |
2013 |
111.5 |
0.665 |
2014 |
109.6 |
0.636 |
2015 |
107.5 |
0.606 |
2016 |
105.3 |
0.574 |
2017 |
102.7 |
0.540 |
2018 |
99.8 |
0.505 |
2019 |
96.4 |
0.470 |
2020 |
92.5 |
0.435 |
2021 |
88.0 |
0.401 |
2022 |
82.6 |
0.369 |
2023 |
76.3 |
0.340 |
2024 |
68.8 |
0.314 |
2025 |
60.2 |
0.294 |
2026 |
50.5 |
0.281 |
2027 |
40.2 |
0.275 |
2028 |
29.8 |
0.278 |
2029 |
19.9 |
0.289 |
2030 |
10.9 |
0.308 |
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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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