17472+1502 HU 1288

 
 
17h 47m 09.16s +15 02' 13.8" P.A. 161.1 sep 0.44 mag 8.31,9.37 Sp A0 dist. 311.53 pc (1016.21 l.y.)
 
 
Coord 2000
17472+1502
Discov num
HU 1288
Comp
Coord arcsec 2000
17 47 09.16 +15 02 13.8
Date first
1905
Date last
2010
Obs
42
Pa first
116
Pa last
163
P.A. Now (θ)
161.1°
Sep first
0.2
Sep last
0.4
Sep. Now (ρ)
0.44"
Mag pri
8.31
Mag sec
9.37
delta mag (ΔM)
1.06
Spectral class
A0 (white)
Pri motion ra
+001
Sec motion ra
+001
Pri motion dec
-010
Sec motion dec
-010
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
163.2
Precise sep
0.4
Constellation
Hercules
SAO
103105
HIP
87047
Tycho2
1552-00152-1
HD
161819
ADS
10796
BD
BD+15 3270
Distance
311.53
Distance ly
1016.21
last precise pa
163.2
last precise sep
0.4
 
 
ORBITAL ELEMENTS
 
 
Period (P)765y Periastron (T)2005y Semi-major axis (a)0.519a
Eccentricity (e)0.16 Inclination (i)64.5° Longitude of periastron (ω)355.1°
Node (Ω)159.5° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.432 156.0
2001 0.433 156.2
2002 0.433 156.5
2003 0.434 156.8
2004 0.434 157.1
2005 0.435 157.4
2006 0.435 157.7
2007 0.435 158.0
2008 0.436 158.2
2009 0.436 158.5
2010 0.436 158.8
2011 0.436 159.1
2012 0.436 159.4
2013 0.436 159.7
2014 0.436 159.9
2015 0.436 160.2
2016 0.436 160.5
2017 0.436 160.8
2018 0.436 161.1
2019 0.436 161.4
2020 0.436 161.6
2021 0.435 161.9
2022 0.435 162.2
2023 0.435 162.5
2024 0.434 162.8
2025 0.434 163.1
2026 0.433 163.4
2027 0.433 163.6
2028 0.432 163.9
2029 0.432 164.2
2030 0.431 164.5

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

grafico orbita





wds17472%2B1502a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17472+1502 HU 1288 1995 40 156 0.4 8.31 9.37 A0 D 174709.16+150213.8
17472+1502 HU 1288 2010 41 163 0.4 8.31 9.37 A0 D 174709.16+150213.8

If you need more information about this double, apply for a data request form to the WDS.