16492+4559 BU 627 A,BC (52 Her)
16h 49m 14.21s +45° 58' 59.9" P.A. 44.00 sep 2.2 mag 4.84,8.45 Sp A1V dist. 55.25 pc (180.23 l.y.)
| Coord 2000 |
16492+4559 |
|
Discov num |
BU 627 |
|
Comp |
A,BC |
|
Coord arcsec 2000 |
16 49 14.21 +45 58 59.9 |
|
| Date first |
1878 |
|
Date last |
2018 |
|
Obs |
81 |
|
| Pa first |
309 |
|
Pa last |
43.6 |
|
P.A. Now (θ) |
43.6° |
|
| Sep first |
1.8 |
|
Sep last |
2.22 |
|
Sep. Now (ρ) |
2.22" |
|
| Mag pri |
4.84 |
|
Mag sec |
8.45 |
|
delta mag (ΔM) |
3.61 |
|
Spectral class |
A1V (white) |
|
| Pri motion ra |
+022 |
|
Sec motion ra |
+023 |
|
| Pri motion dec |
-056 |
|
Sec motion dec |
-051 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.085 (< 0.3, Physical double)
This double is physical.
16492+4559 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
52 Her |
46305 |
16 49 14 +45 58 60 |
BU 627 A,BC |
2018 |
81 |
44 |
2.2 |
4.84 |
8.45 |
3.61 |
Y |
<=== |
| Show |
|
46305 |
16 49 14 +45 58 60 |
BU 627 AD |
2003 |
6 |
236 |
65.2 |
4.84 |
12.49 |
7.65 |
|
|
| Show |
|
46305 |
16 49 14 +45 58 60 |
BU 627 AE |
2020 |
6 |
270 |
147.6 |
4.84 |
12.66 |
7.82 |
|
|
| Show |
|
46305 |
16 49 14 +45 58 60 |
KZA 123 AF |
2003 |
3 |
253 |
91.6 |
4.84 |
14.01 |
9.17 |
|
|
| Show |
|
46305 |
16 49 14 +45 59 00 |
A 1866 BC |
2013 |
47 |
267 |
0.3 |
9.50 |
9.60 |
0.10 |
Y |
|
Sextuple system
7 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
52 Her |
|
Var name |
V637 Her |
|
Constellation |
Hercules |
|
SAO |
46305 |
|
| HIP |
82321 |
|
Tycho2 |
3500-02419-1 |
|
Gaia DR2 |
1407474737249092608 |
|
HD |
152107 |
|
| HR |
6254 |
|
GC |
22662 |
|
ADS |
10227 |
|
BD |
BD+46 2220 |
|
| Flamsteed |
52 Herculis |
|
Flamsteed name |
52 Her |
|
Distance |
55.25 |
|
Distance ly |
180.23 |
|
ORBITAL ELEMENTS
| Period (P) | 870.727y | ± 393.7644 |
Periastron (T) | 2062.7195y | ± 65.6656 |
Semi-major axis (a) | 5.76394a | ± 2.75301 |
| Eccentricity (e) | 0.77916 | ± 0.28945 |
Inclination (i) | 76.637° | ± 10.92 |
Longitude of periastron (ω) | 58.851° | ± 40.01 |
| Node (Ω) | 58° | ± 14.655 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2012 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
31.5 |
1.885 |
| 2001 |
32.1 |
1.894 |
| 2002 |
32.6 |
1.902 |
| 2003 |
33.2 |
1.911 |
| 2004 |
33.7 |
1.919 |
| 2005 |
34.2 |
1.927 |
| 2006 |
34.8 |
1.935 |
| 2007 |
35.3 |
1.942 |
| 2008 |
35.8 |
1.950 |
| 2009 |
36.3 |
1.957 |
| 2010 |
36.9 |
1.964 |
| 2011 |
37.4 |
1.970 |
| 2012 |
37.9 |
1.977 |
| 2013 |
38.4 |
1.983 |
| 2014 |
38.9 |
1.988 |
| 2015 |
39.4 |
1.994 |
| 2016 |
39.9 |
1.999 |
| 2017 |
40.4 |
2.003 |
| 2018 |
40.9 |
2.007 |
| 2019 |
41.4 |
2.011 |
| 2020 |
41.9 |
2.014 |
| 2021 |
42.4 |
2.017 |
| 2022 |
42.9 |
2.019 |
| 2023 |
43.3 |
2.020 |
| 2024 |
43.8 |
2.021 |
| 2025 |
44.3 |
2.021 |
| 2026 |
44.8 |
2.021 |
| 2027 |
45.3 |
2.020 |
| 2028 |
45.8 |
2.017 |
| 2029 |
46.3 |
2.014 |
| 2030 |
46.8 |
2.010 |
|
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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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