19313+4729 A   713

 
 
19h 31m 16.38s +47 28' 52.6" P.A. 321.1 sep 0.16 mag 7.50,7.93 Sp A3 dist. 231.48 pc (755.09 l.y.)
 
 
Coord 2000
19313+4729
Discov num
A   713
Comp
Coord arcsec 2000
19 31 16.38 +47 28 52.6
Date first
1904
Date last
2008
Obs
61
Pa first
211
Pa last
299
P.A. Now (θ)
321.1°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.16"
Mag pri
7.50
Mag sec
7.93
delta mag (ΔM)
0.43
Spectral class
A3 (white)
Pri motion ra
-015
Sec motion ra
Pri motion dec
-031
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
298.6
Precise sep
0.255
Constellation
Cygnus
HIP
96011
HD
184242
ADS
12567
Distance
231.48
Distance ly
755.09
last precise pa
298.6
last precise sep
0.255
 
 
ORBITAL ELEMENTS
 
 
Period (P)64778d (177.35y)± 427 Periastron (T)6d (1858.892y)± 375 Semi-major axis (a)0.2919a± 0.0014
Eccentricity (e)0.471± 0.018 Inclination (i)48.73°± 3.6 Longitude of periastron (ω)334.89°± 5.3
Node (Ω)84.54°± 2.9 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 0.296 284.0
2001 0.289 285.2
2002 0.283 286.4
2003 0.276 287.7
2004 0.269 289.1
2005 0.262 290.5
2006 0.255 292.0
2007 0.248 293.6
2008 0.240 295.3
2009 0.233 297.1
2010 0.225 299.0
2011 0.217 301.1
2012 0.209 303.3
2013 0.201 305.7
2014 0.193 308.3
2015 0.186 311.1
2016 0.178 314.1
2017 0.170 317.4
2018 0.163 321.1
2019 0.155 325.1
2020 0.148 329.4
2021 0.142 334.2
2022 0.136 339.4
2023 0.131 345.1
2024 0.127 351.1
2025 0.123 357.6
2026 0.121 4.3
2027 0.120 11.2
2028 0.120 18.2
2029 0.121 25.2
2030 0.123 32.0

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

grafico orbita





wds19313%2B4729b.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
19313+4729 A 713 1999 58 279 0.4 7.50 7.93 A3 OD 193116.38+472852.6
19313+4729 A 713 2008 61 299 0.3 7.50 7.93 A3 NO 193116.38+472852.6
19313+4729 A 713 2009 61 299 0.2 7.50 7.93 A3 OD 193116.38+472852.6

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