17465+2743 AC 7 BC
17h 46m 25.07s +27° 43' 01.4" P.A. 27.00 sep 1.0 mag 10.20,10.70 Sp M2.2V+M4V
| Coord 2000 |
17465+2743 |
|
Discov num |
AC 7 |
|
Comp |
BC |
|
Coord arcsec 2000 |
17 46 25.07 +27 43 01.4 |
|
| Date first |
1854 |
|
Date last |
2021 |
|
Obs |
371 |
|
| Pa first |
59 |
|
Pa last |
26.9 |
|
P.A. Now (θ) |
34.6° |
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| Sep first |
1.9 |
|
Sep last |
0.963 |
|
Sep. Now (ρ) |
1.111" |
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| Mag pri |
10.20 |
|
Mag sec |
10.70 |
|
delta mag (ΔM) |
0.5 |
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Spectral class |
M2.2V+M4V (red/red) |
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| Pri motion ra |
-343 |
|
Sec motion ra |
|
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| Pri motion dec |
-744 |
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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.
17465+2743 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
85397 |
17 46 28 +27 43 14 |
TRN 2 Aa,Ab |
2015 |
24 |
255 |
1.8 |
3.49 |
12.70 |
9.21 |
Y |
|
| Show |
Mu Her |
85397 |
17 46 28 +27 43 14 |
STF 2220 A,BC |
2016 |
121 |
249 |
35.4 |
3.49 |
9.78 |
6.29 |
|
|
| Show |
|
85397 |
17 46 28 +27 43 14 |
ABT 14 AD |
2002 |
3 |
5 |
321.1 |
3.49 |
12.33 |
8.84 |
|
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| Show |
|
|
17 46 25 +27 43 01 |
AC 7 BC |
2021 |
371 |
27 |
1.0 |
10.20 |
10.70 |
0.50 |
Y |
<=== |
| Show |
|
|
17 46 25 +27 43 01 |
ABT 14 BC,D |
2000 |
2 |
10 |
335.0 |
9.78 |
12.33 |
2.55 |
|
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Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
ADS |
10786 |
|
ORBITAL ELEMENTS
| Period (P) | 43.46y | ± 0.23 |
Periastron (T) | 54592d (2008.344y) | ± 13 |
Semi-major axis (a) | 1402m | ± 6 |
| Eccentricity (e) | 0.1834 | ± 0.0031 |
Inclination (i) | 65.821° | ± 0.098 |
Longitude of periastron (ω) | 172.21° | ± 0.48 |
| Node (Ω) | 61.11° | ± 0.8 |
Notes | n | |
Reference | MnA2019 | |
| Equinox | | |
Last observation | | |
Grade | 1 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
132.6 |
0.580 |
| 2001 |
153.9 |
0.540 |
| 2002 |
175.8 |
0.567 |
| 2003 |
193.8 |
0.649 |
| 2004 |
207.1 |
0.760 |
| 2005 |
216.9 |
0.877 |
| 2006 |
224.5 |
0.984 |
| 2007 |
230.7 |
1.069 |
| 2008 |
236.1 |
1.125 |
| 2009 |
241.2 |
1.147 |
| 2010 |
246.2 |
1.134 |
| 2011 |
251.5 |
1.088 |
| 2012 |
257.4 |
1.013 |
| 2013 |
264.5 |
0.917 |
| 2014 |
273.3 |
0.810 |
| 2015 |
284.8 |
0.704 |
| 2016 |
300.0 |
0.617 |
| 2017 |
318.9 |
0.571 |
| 2018 |
339.0 |
0.580 |
| 2019 |
356.9 |
0.643 |
| 2020 |
10.7 |
0.743 |
| 2021 |
20.9 |
0.862 |
| 2022 |
28.7 |
0.987 |
| 2023 |
34.6 |
1.111 |
| 2024 |
39.4 |
1.228 |
| 2025 |
43.4 |
1.334 |
| 2026 |
46.9 |
1.427 |
| 2027 |
49.9 |
1.506 |
| 2028 |
52.7 |
1.569 |
| 2029 |
55.3 |
1.616 |
| 2030 |
57.7 |
1.645 |
|
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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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