08369-7857 KOH 79 AB
08h 36m 56.24s -78° 56' 45.5" P.A. 54.00 sep 0.1 mag 10.40,10.50 Sp K4Ve
| Coord 2000 |
08369-7857 |
|
Discov num |
KOH 79 |
|
Comp |
AB |
|
Coord arcsec 2000 |
08 36 56.24 -78 56 45.5 |
|
| Date first |
1996 |
|
Date last |
2020 |
|
Obs |
20 |
|
| Pa first |
16 |
|
Pa last |
54.2 |
|
P.A. Now (θ) |
54.2° |
|
| Sep first |
0.1 |
|
Sep last |
0.086 |
|
Sep. Now (ρ) |
0.086" |
|
| Mag pri |
10.40 |
|
Mag sec |
10.50 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
K4Ve (yellow-orange) |
|
| Pri motion ra |
-030 |
|
Sec motion ra |
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| Pri motion dec |
+028 |
|
Sec motion dec |
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|
| Notes |
N
O
W
R
(See Notes, Orbital solution, , Red magnitudes) |
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This double is physical.
08369-7857 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
08 36 56 -78 56 46 |
KOH 79 AB |
2020 |
20 |
54 |
0.1 |
10.40 |
10.50 |
0.10 |
Y |
<=== |
| Show |
|
|
08 36 56 -78 56 46 |
KOH 79 AB,C |
2004 |
5 |
14 |
8.6 |
10.50 |
16.40 |
5.90 |
|
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Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Chamaeleon |
|
Tycho2 |
9402-00921-1 |
|
Gaia DR2 |
5209082129256747008 |
|
ORBITAL ELEMENTS
| Period (P) | 77.1y | ± 8.9 |
Periastron (T) | 1996.4y | ± 1.5 |
Semi-major axis (a) | 0.2441a | ± 0.0207 |
| Eccentricity (e) | 0.291 | ± 0.052 |
Inclination (i) | 106.2° | ± 1.5 |
Longitude of periastron (ω) | 320.7° | ± 11.3 |
| Node (Ω) | 182° | ± 1.3 |
Notes | n | |
Reference | Tok2016e | |
| Equinox | 2000 | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
184.3 |
0.177 |
| 2001 |
182.0 |
0.182 |
| 2002 |
179.8 |
0.185 |
| 2003 |
177.6 |
0.185 |
| 2004 |
175.4 |
0.183 |
| 2005 |
173.1 |
0.178 |
| 2006 |
170.7 |
0.172 |
| 2007 |
168.1 |
0.165 |
| 2008 |
165.2 |
0.156 |
| 2009 |
161.9 |
0.146 |
| 2010 |
158.2 |
0.135 |
| 2011 |
153.8 |
0.124 |
| 2012 |
148.5 |
0.113 |
| 2013 |
142.1 |
0.103 |
| 2014 |
134.4 |
0.093 |
| 2015 |
125.0 |
0.085 |
| 2016 |
113.9 |
0.079 |
| 2017 |
101.6 |
0.076 |
| 2018 |
88.8 |
0.077 |
| 2019 |
76.8 |
0.081 |
| 2020 |
66.1 |
0.087 |
| 2021 |
57.2 |
0.096 |
| 2022 |
49.9 |
0.106 |
| 2023 |
44.0 |
0.118 |
| 2024 |
39.1 |
0.129 |
| 2025 |
35.0 |
0.142 |
| 2026 |
31.6 |
0.154 |
| 2027 |
28.7 |
0.166 |
| 2028 |
26.2 |
0.178 |
| 2029 |
24.0 |
0.190 |
| 2030 |
22.1 |
0.201 |
|
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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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