09194-7739 KOH 83 Aa,Ab
09h 19m 24.66s -77° 38' 36.4" P.A. 51.00 sep 0.1 mag 8.70,10.10 Sp G7V dist. 56.82 pc (185.35 l.y.)
| Coord 2000 |
09194-7739 |
|
Discov num |
KOH 83 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
09 19 24.66 -77 38 36.4 |
|
| Date first |
1996 |
|
Date last |
2021 |
|
Obs |
26 |
|
| Pa first |
174 |
|
Pa last |
51.3 |
|
P.A. Now (θ) |
72.1° |
|
| Sep first |
0.1 |
|
Sep last |
0.086 |
|
Sep. Now (ρ) |
0.1" |
|
| Mag pri |
8.70 |
|
Mag sec |
10.10 |
|
delta mag (ΔM) |
1.4 |
|
Spectral class |
G7V (yellow) |
|
| Pri motion ra |
-107 |
|
Sec motion ra |
|
|
| Pri motion dec |
+069 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
09194-7739 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
256606 |
09 19 25 -77 38 36 |
KOH 83 Aa,Ab |
2021 |
26 |
51 |
0.1 |
8.70 |
10.10 |
1.40 |
Y |
<=== |
| Show |
HD 81485 |
256606 |
09 19 25 -77 38 36 |
HJ 4214 AB |
2016 |
27 |
194 |
9.0 |
8.41 |
9.66 |
1.25 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Chamaeleon |
|
SAO |
256606 |
|
HIP |
45734 |
|
Tycho2 |
9399-02451-1 |
|
| Gaia DR2 |
5203285607034812416 |
|
HD |
81485 |
|
CP |
CP-77 503 |
|
Distance |
56.82 |
|
| Distance ly |
185.35 |
|
ORBITAL ELEMENTS
| Period (P) | 20.1y | ± 0.29 |
Periastron (T) | 2019.103y | ± 0.004 |
Semi-major axis (a) | 0.1405a | ± 0.0019 |
| Eccentricity (e) | 0.7818 | ± 0.0038 |
Inclination (i) | 63° | ± 0.6 |
Longitude of periastron (ω) | 276.3° | ± 0.3 |
| Node (Ω) | 21.6° | ± 0.7 |
Notes | n | |
Reference | Tok2020c | |
| Equinox | 2000 | |
Last observation | 2019 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
34.9 |
0.069 |
| 2001 |
50.8 |
0.088 |
| 2002 |
62.7 |
0.096 |
| 2003 |
73.1 |
0.100 |
| 2004 |
82.8 |
0.103 |
| 2005 |
92.1 |
0.105 |
| 2006 |
100.9 |
0.108 |
| 2007 |
109.3 |
0.110 |
| 2008 |
117.3 |
0.113 |
| 2009 |
124.9 |
0.116 |
| 2010 |
132.1 |
0.119 |
| 2011 |
139.0 |
0.121 |
| 2012 |
145.7 |
0.123 |
| 2013 |
152.2 |
0.124 |
| 2014 |
158.7 |
0.124 |
| 2015 |
165.3 |
0.121 |
| 2016 |
172.5 |
0.115 |
| 2017 |
180.8 |
0.103 |
| 2018 |
192.9 |
0.078 |
| 2019 |
257.2 |
0.017 |
| 2020 |
32.8 |
0.066 |
| 2021 |
49.5 |
0.086 |
| 2022 |
61.6 |
0.095 |
| 2023 |
72.1 |
0.100 |
| 2024 |
81.9 |
0.103 |
| 2025 |
91.2 |
0.105 |
| 2026 |
100.0 |
0.108 |
| 2027 |
108.4 |
0.110 |
| 2028 |
116.5 |
0.113 |
| 2029 |
124.1 |
0.116 |
| 2030 |
131.4 |
0.119 |
|
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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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