07549-2920 KUI 32
07h 54m 54.80s -29° 20' 56.3" P.A. 6.00 sep 0.8 mag 13.10,13.60 Sp M4V
| Coord 2000 |
07549-2920 |
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Discov num |
KUI 32 |
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Comp |
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Coord arcsec 2000 |
07 54 54.80 -29 20 56.3 |
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| Date first |
1940 |
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Date last |
2021 |
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Obs |
13 |
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| Pa first |
110 |
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Pa last |
5.8 |
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P.A. Now (θ) |
358.3° |
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| Sep first |
0.8 |
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Sep last |
0.812 |
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Sep. Now (ρ) |
0.78" |
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| Mag pri |
13.10 |
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Mag sec |
13.60 |
|
delta mag (ΔM) |
0.5 |
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Spectral class |
M4V (red) |
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| Pri motion ra |
+321 |
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Sec motion ra |
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| Pri motion dec |
-495 |
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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.
OTHER CATALOGS AND DESIGNATIONS
ORBITAL ELEMENTS
| Period (P) | 30.71y | ± 0.36 |
Periastron (T) | 1998.8y | ± 0.29 |
Semi-major axis (a) | 1.063a | ± 0.033 |
| Eccentricity (e) | 0.774 | ± 0.017 |
Inclination (i) | 119.8° | ± 1.3 |
Longitude of periastron (ω) | 260.2° | ± 0.7 |
| Node (Ω) | 117.1° | ± 2.2 |
Notes | n | |
Reference | Tok2021f | |
| Equinox | | |
Last observation | 2020 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
117.1 |
0.491 |
| 2001 |
105.2 |
0.691 |
| 2002 |
97.9 |
0.814 |
| 2003 |
92.2 |
0.897 |
| 2004 |
87.3 |
0.953 |
| 2005 |
82.9 |
0.992 |
| 2006 |
78.8 |
1.017 |
| 2007 |
74.8 |
1.033 |
| 2008 |
71.0 |
1.040 |
| 2009 |
67.1 |
1.040 |
| 2010 |
63.2 |
1.035 |
| 2011 |
59.3 |
1.026 |
| 2012 |
55.3 |
1.014 |
| 2013 |
51.2 |
0.998 |
| 2014 |
46.9 |
0.981 |
| 2015 |
42.5 |
0.961 |
| 2016 |
37.9 |
0.940 |
| 2017 |
33.1 |
0.919 |
| 2018 |
28.0 |
0.897 |
| 2019 |
22.7 |
0.874 |
| 2020 |
17.1 |
0.851 |
| 2021 |
11.2 |
0.828 |
| 2022 |
4.9 |
0.805 |
| 2023 |
358.3 |
0.780 |
| 2024 |
351.2 |
0.753 |
| 2025 |
343.5 |
0.721 |
| 2026 |
335.0 |
0.679 |
| 2027 |
325.2 |
0.619 |
| 2028 |
312.4 |
0.518 |
| 2029 |
287.6 |
0.300 |
| 2030 |
139.7 |
0.255 |
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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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