19308+6337 HU  951

 
 
19h 30m 47.57s +63 37' 04.3" P.A. 220.5 sep 0.2 mag 10.05,10.36 Sp F dist. 232.02 pc (756.85 l.y.)
 
 
Coord 2000
19308+6337
Discov num
HU  951
Comp
Coord arcsec 2000
19 30 47.57 +63 37 04.3
Date first
1904
Date last
2008
Obs
22
Pa first
287
Pa last
197
P.A. Now (θ)
220.5°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
10.05
Mag sec
10.36
delta mag (ΔM)
0.31
Spectral class
F (yellow-white)
Pri motion ra
+018
Sec motion ra
Pri motion dec
+002
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
197
Precise sep
0.194
Constellation
Draco
HIP
95955
ADS
12577
Distance
232.02
Distance ly
756.85
last precise pa
197
last precise sep
0.194
 
 
ORBITAL ELEMENTS
 
 
Period (P)153.74y Periastron (T)1967.84y Semi-major axis (a)0.204a
Eccentricity (e)0.225 Inclination (i)32.3° Longitude of periastron (ω)316.3°
Node (Ω)126.2° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 0.181 179.2
2001 0.181 181.7
2002 0.182 184.1
2003 0.182 186.5
2004 0.183 188.9
2005 0.184 191.3
2006 0.184 193.7
2007 0.185 196.0
2008 0.186 198.4
2009 0.187 200.7
2010 0.188 203.0
2011 0.189 205.3
2012 0.190 207.5
2013 0.191 209.7
2014 0.192 211.9
2015 0.193 214.1
2016 0.194 216.2
2017 0.195 218.4
2018 0.196 220.5
2019 0.198 222.5
2020 0.199 224.6
2021 0.200 226.6
2022 0.202 228.6
2023 0.203 230.5
2024 0.204 232.5
2025 0.206 234.4
2026 0.207 236.3
2027 0.209 238.1
2028 0.210 239.9
2029 0.212 241.8
2030 0.213 243.5

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

grafico orbita





wds19308%2B6337b.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
19308+6337 HU 951 1995 20 358 0.2 10.05 10.36 F NO 193047.57+633704.3
19308+6337 HU 951 2007 21 197 0.2 10.05 10.36 F NO 193047.57+633704.3
19308+6337 HU 951 2008 22 197 0.2 10.05 10.36 F NO 193047.57+633704.3

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