16579+4722 A 1874 AB (V1090 Her)
16h 57m 53.18s +47° 22' 00.0" P.A. 64.00 sep 5.0 mag 7.93,10.85 Sp K0V dist. 18.3 pc (59.69 l.y.)
| Coord 2000 |
16579+4722 |
|
Discov num |
A 1874 |
|
Comp |
AB |
|
Coord arcsec 2000 |
16 57 53.18 +47 22 00.0 |
|
| Date first |
1908 |
|
Date last |
2021 |
|
Obs |
47 |
|
| Pa first |
50 |
|
Pa last |
63.9 |
|
P.A. Now (θ) |
63.9° |
|
| Sep first |
2.9 |
|
Sep last |
4.979 |
|
Sep. Now (ρ) |
4.979" |
|
| Mag pri |
7.93 |
|
Mag sec |
10.85 |
|
delta mag (ΔM) |
2.92 |
|
Spectral class |
K0V (yellow-orange) |
|
| Pri motion ra |
-147 |
|
Sec motion ra |
-147 |
|
| Pri motion dec |
+272 |
|
Sec motion dec |
+272 |
|
| Notes |
N
O
W
(See Notes, Orbital solution, ) |
|
This double is physical.
16579+4722 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
V1090 Her |
46409 |
16 57 53 +47 22 00 |
A 1874 AB |
2021 |
47 |
64 |
5.0 |
7.93 |
10.85 |
2.92 |
Y |
<=== |
| Show |
|
46409 |
16 57 53 +47 22 00 |
STFA 32 AC |
2021 |
36 |
262 |
112.4 |
7.93 |
8.05 |
0.12 |
|
|
| Show |
|
46409 |
16 57 53 +47 22 00 |
A 1874 AD |
1998 |
2 |
246 |
25.9 |
7.93 |
15.00 |
7.07 |
|
|
| Show |
|
46403 |
16 57 54 +47 22 02 |
STFA 32 BC |
2015 |
9 |
261 |
117.2 |
10.85 |
8.05 |
2.80 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
V1090 Her |
|
Constellation |
Hercules |
|
SAO |
46409 |
|
HIP |
83020 |
|
| Tycho2 |
3500-01780-1 |
|
Gaia DR2 |
1408029509584967168 |
|
HD |
153557 |
|
ADS |
10288 |
|
| BD |
BD+47 2415 |
|
Distance |
18.3 |
|
Distance ly |
59.69 |
|
ORBITAL ELEMENTS
| Period (P) | 311y | ± 20 |
Periastron (T) | 1852y | ± 9 |
Semi-major axis (a) | 2.95a | ± 0.13 |
| Eccentricity (e) | 0.86 | ± 0.04 |
Inclination (i) | 64° | ± 5 |
Longitude of periastron (ω) | 332° | ± 4 |
| Node (Ω) | 256° | ± 3 |
Notes | n | |
Reference | Kis2009b | |
| Equinox | | |
Last observation | 2007 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
62.2 |
4.921 |
| 2001 |
62.3 |
4.929 |
| 2002 |
62.4 |
4.937 |
| 2003 |
62.5 |
4.944 |
| 2004 |
62.6 |
4.952 |
| 2005 |
62.7 |
4.959 |
| 2006 |
62.7 |
4.965 |
| 2007 |
62.8 |
4.972 |
| 2008 |
62.9 |
4.978 |
| 2009 |
63.0 |
4.983 |
| 2010 |
63.1 |
4.989 |
| 2011 |
63.2 |
4.994 |
| 2012 |
63.3 |
4.999 |
| 2013 |
63.4 |
5.003 |
| 2014 |
63.5 |
5.007 |
| 2015 |
63.6 |
5.011 |
| 2016 |
63.6 |
5.015 |
| 2017 |
63.7 |
5.018 |
| 2018 |
63.8 |
5.021 |
| 2019 |
63.9 |
5.024 |
| 2020 |
64.0 |
5.026 |
| 2021 |
64.1 |
5.028 |
| 2022 |
64.2 |
5.030 |
| 2023 |
64.3 |
5.031 |
| 2024 |
64.4 |
5.033 |
| 2025 |
64.4 |
5.033 |
| 2026 |
64.5 |
5.034 |
| 2027 |
64.6 |
5.034 |
| 2028 |
64.7 |
5.034 |
| 2029 |
64.8 |
5.033 |
| 2030 |
64.9 |
5.033 |
| 2031 |
65.0 |
5.032 |
| 2032 |
65.1 |
5.030 |
| 2033 |
65.2 |
5.028 |
| 2034 |
65.3 |
5.026 |
| 2035 |
65.3 |
5.024 |
| 2036 |
65.4 |
5.021 |
| 2037 |
65.5 |
5.018 |
| 2038 |
65.6 |
5.015 |
| 2039 |
65.7 |
5.011 |
| 2040 |
65.8 |
5.007 |
| 2041 |
65.9 |
5.003 |
| 2042 |
66.0 |
4.998 |
| 2043 |
66.1 |
4.993 |
| 2044 |
66.1 |
4.987 |
| 2045 |
66.2 |
4.982 |
| 2046 |
66.3 |
4.976 |
| 2047 |
66.4 |
4.969 |
| 2048 |
66.5 |
4.962 |
| 2049 |
66.6 |
4.955 |
| 2050 |
66.7 |
4.948 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
