16270-2446 COR 8 Ba,Bb
16h 26m 58.43s -24° 45' 31.8" P.A. 241.00 sep 0.1 mag 9.10,9.80
| Coord 2000 |
16270-2446 |
|
Discov num |
COR 8 |
|
Comp |
Ba,Bb |
|
Coord arcsec 2000 |
16 26 58.43 -24 45 31.8 |
|
| Date first |
2001 |
|
Date last |
2015 |
|
Obs |
5 |
|
| Pa first |
59 |
|
Pa last |
240.6 |
|
P.A. Now (θ) |
240.6° |
|
| Sep first |
0.1 |
|
Sep last |
0.099 |
|
Sep. Now (ρ) |
0.099" |
|
| Mag pri |
9.10 |
|
Mag sec |
9.80 |
|
delta mag (ΔM) |
0.7 |
|
Spectral class |
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| Pri motion ra |
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Sec motion ra |
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| Pri motion dec |
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Sec motion dec |
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| Notes |
N
O
K
(See Notes, Orbital solution, K-band or other infrared magnitudes) |
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Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
16270-2446 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
16 26 59 -24 45 37 |
CST 6 Aa,Ab |
1996 |
1 |
38 |
0.1 |
11.56 |
|
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| Show |
|
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16 26 59 -24 45 37 |
HER 17 AB |
2015 |
13 |
349 |
5.1 |
12.90 |
16.90 |
4.00 |
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| Show |
|
|
16 26 58 -24 45 32 |
COR 8 Ba,Bb |
2015 |
5 |
241 |
0.1 |
9.10 |
9.80 |
0.70 |
Y |
<=== |
Quadruple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ophiuchus |
|
Gaia DR2 |
6049069838478958592 |
|
ORBITAL ELEMENTS
| Period (P) | 111y | ± 105 |
Periastron (T) | 2009.34y | ± 0.15 |
Semi-major axis (a) | 0.181a | ± 0.083 |
| Eccentricity (e) | 0.64 | ± 0.13 |
Inclination (i) | 132.1° | ± 7.4 |
Longitude of periastron (ω) | 110.9° | ± 5.8 |
| Node (Ω) | 72° | ± 4.3 |
Notes | | |
Reference | Sfr2018 | |
| Equinox | 2000 | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
68.1 |
0.128 |
| 2001 |
64.5 |
0.119 |
| 2002 |
60.3 |
0.109 |
| 2003 |
55.2 |
0.098 |
| 2004 |
48.8 |
0.087 |
| 2005 |
40.3 |
0.075 |
| 2006 |
28.6 |
0.063 |
| 2007 |
11.8 |
0.052 |
| 2008 |
348.3 |
0.046 |
| 2009 |
321.1 |
0.045 |
| 2010 |
297.4 |
0.052 |
| 2011 |
280.0 |
0.061 |
| 2012 |
267.4 |
0.071 |
| 2013 |
257.9 |
0.081 |
| 2014 |
250.3 |
0.089 |
| 2015 |
243.9 |
0.096 |
| 2016 |
238.3 |
0.102 |
| 2017 |
233.4 |
0.108 |
| 2018 |
228.9 |
0.112 |
| 2019 |
224.7 |
0.117 |
| 2020 |
220.8 |
0.121 |
| 2021 |
217.2 |
0.124 |
| 2022 |
213.7 |
0.127 |
| 2023 |
210.4 |
0.130 |
| 2024 |
207.2 |
0.133 |
| 2025 |
204.2 |
0.136 |
| 2026 |
201.3 |
0.139 |
| 2027 |
198.5 |
0.141 |
| 2028 |
195.8 |
0.144 |
| 2029 |
193.2 |
0.146 |
| 2030 |
190.7 |
0.148 |
|
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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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