18083+2941 YSC 65 Aa,Ac
18h 08m 16.03s +29° 41' 28.1" P.A. 246.00 sep 0.1 mag 7.80,10.80 Sp G5
| Coord 2000 |
18083+2941 |
|
Discov num |
YSC 65 |
|
Comp |
Aa,Ac |
|
Coord arcsec 2000 |
18 08 16.03 +29 41 28.1 |
|
| Date first |
2007 |
|
Date last |
2007 |
|
Obs |
2 |
|
| Pa first |
242 |
|
Pa last |
245.6 |
|
P.A. Now (θ) |
245.6° |
|
| Sep first |
0.1 |
|
Sep last |
0.116 |
|
Sep. Now (ρ) |
0.116" |
|
| Mag pri |
7.80 |
|
Mag sec |
10.80 |
|
delta mag (ΔM) |
3 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
+138 |
|
Sec motion ra |
|
|
| Pri motion dec |
-019 |
|
Sec motion dec |
|
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| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
18083+2941 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 08 16 +29 41 28 |
LAF 60 Aa,Ab |
2019 |
4 |
251 |
0.1 |
7.80 |
11.00 |
3.20 |
|
|
| Show |
|
|
18 08 16 +29 41 28 |
YSC 65 Aa,Ac |
2007 |
2 |
246 |
0.1 |
7.80 |
10.80 |
3.00 |
|
<=== |
| Show |
|
|
18 08 16 +29 41 28 |
LAF 60 AB |
2005 |
1 |
53 |
10.4 |
5.80 |
20.10 |
14.30 |
|
|
| Show |
|
|
18 08 16 +29 41 28 |
LAF 60 AC |
2005 |
1 |
196 |
11.2 |
5.80 |
20.80 |
15.00 |
|
|
| Show |
|
|
18 08 16 +29 41 28 |
LAF 60 AD |
2005 |
1 |
168 |
13.4 |
5.80 |
20.00 |
14.20 |
|
|
| Show |
|
|
18 08 16 +29 41 28 |
LAF 60 AE |
2015 |
5 |
262 |
16.3 |
5.80 |
17.70 |
11.90 |
|
|
Septuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Gaia DR2 |
4590455518346609792 |
|
SUSPECTED ORBITAL ELEMENTS
| Identifier | 18083+2941 |
| coord_arcsec_2000 | 180815.96+294128.3 |
| Period (P) | 2092.2d (5.73y) | ± 5.8 |
Periastron (T) | 50585.1d (1997.373y) | ± 7.5 |
Semi-major axis (a) | 48.8m | ± 1.2 |
| Eccentricity (e) | 0.765 | ± 0.013 |
Inclination (i) | 78.4° | ± 1.6 |
Longitude of periastron (ω) | 288.7° | ± 1.4 |
| Node (Ω) | 69.2° | ± 2.3 |
Notes | | |
Reference | Fek2005 | |
| Equinox | | |
Last observation | | |
Grade | 9 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
213.5 |
0.028 |
| 2001-01-01 |
229.2 |
0.042 |
| 2002-01-01 |
238.7 |
0.046 |
| 2003-01-01 |
261.3 |
0.010 |
| 2004-01-01 |
105.1 |
0.018 |
| 2005-01-01 |
184.6 |
0.018 |
| 2006-01-01 |
219.1 |
0.033 |
| 2007-01-01 |
232.0 |
0.045 |
| 2008-01-01 |
241.3 |
0.044 |
| 2009-01-01 |
72.1 |
0.019 |
| 2010-01-01 |
123.9 |
0.016 |
| 2011-01-01 |
198.8 |
0.021 |
| 2012-01-01 |
223.5 |
0.037 |
| 2013-01-01 |
234.6 |
0.046 |
| 2014-01-01 |
244.4 |
0.038 |
| 2015-01-01 |
83.8 |
0.022 |
| 2016-01-01 |
147.7 |
0.015 |
| 2017-01-01 |
208.5 |
0.025 |
| 2018-01-01 |
227.1 |
0.040 |
| 2019-01-01 |
237.0 |
0.047 |
| 2020-01-01 |
249.4 |
0.026 |
| 2021-01-01 |
95.4 |
0.020 |
| 2022-01-01 |
171.5 |
0.016 |
| 2023-01-01 |
215.4 |
0.030 |
| 2024-01-01 |
230.2 |
0.043 |
| 2025-01-01 |
239.5 |
0.046 |
| 2026-01-01 |
15.1 |
0.003 |
| 2027-01-01 |
110.5 |
0.017 |
| 2028-01-01 |
189.7 |
0.019 |
| 2029-01-01 |
220.6 |
0.034 |
| 2030-01-01 |
232.9 |
0.045 |
|
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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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