17375+2419 CHR  63 (79 Her)

 
 
17H 37M 31.10S +24 18' 35.9" P.A. 62.1 SEP 0.1 MAG 5.90,7.30 SP A2VN DIST. 76.69 PC (250.16 L.Y.)
 
 
Coord 2000
17375+2419
Discov num
CHR  63
Comp
Coord arcsec 2000
17 37 31.10 +24 18 35.9
Date first
1985
Date last
2008
Obs
23
Pa first
73
Pa last
57
P.A. Now (θ)
62.1°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
5.90
Mag sec
7.30
delta mag (ΔM)
1.4
Spectral class
A2Vn (white)
Pri motion ra
-012
Sec motion ra
Pri motion dec
+008
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
79 Her
Constellation
Hercules
SAO
85264
HIP
86254
Tycho2
2076-03366-1
HD
160181
HR
6571
GC
23901
BD
BD+24 3218
Flamsteed
79 Herculis
Flamsteed name
79 Her
Distance
76.69
Distance ly
250.16
last precise pa
57
last precise sep
0.094
 
 
ORBITAL ELEMENTS
 
 
Period (P)10.42y± 0.15 Periastron (T)1995.51y± 0.2 Semi-major axis (a)0.127a± 0.003
Eccentricity (e)0.753± 0.01 Inclination (i)100.6°± 1.5 Longitude of periastron (ω)259.8°± 1.5
Node (Ω)72.4°± 2 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 0.071 39.0
2001 0.051 20.2
2002 0.039 344.9
2003 0.045 303.6
2004 0.061 278.7
2005 0.070 263.5
2006 0.010 106.6
2007 0.094 66.1
2008 0.104 59.5
2009 0.096 52.9
2010 0.079 44.1
2011 0.059 29.6
2012 0.043 2.0
2013 0.040 319.5
2014 0.054 287.3
2015 0.068 269.4
2016 0.053 253.8
2017 0.077 69.9
2018 0.103 62.1
2019 0.101 55.8
2020 0.087 48.2
2021 0.067 36.7
2022 0.048 15.9
2023 0.039 337.8
2024 0.047 298.5
2025 0.063 275.9
2026 0.068 261.2
2027 0.037 78.9
2028 0.098 64.9
2029 0.104 58.5
2030 0.093 51.7

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic