19336+3846 CHR  87

 
 
19h 33m 36.43s +38 45' 42.9" P.A. 199.9 sep 0.08 mag 7.19,7.68 Sp A3V dist. 128.7 pc (419.82 l.y.)
 
 
Coord 2000
19336+3846
Discov num
CHR  87
Comp
Coord arcsec 2000
19 33 36.43 +38 45 42.9
Date first
1985
Date last
2011
Obs
16
Pa first
355
Pa last
343
P.A. Now (θ)
199.9°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.08"
Mag pri
7.19
Mag sec
7.68
delta mag (ΔM)
0.49
Spectral class
A3V (white)
Pri motion ra
+008
Sec motion ra
Pri motion dec
+023
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
342.8
Precise sep
0.14
Cdsa2 id
CHR 87
Constellation
Cygnus
SAO
68499
HIP
96195
HD
184603
HR
7436
Ra deg
19.560119444444446
De deg
38.761916666666664
Distance
128.7
Distance ly
419.82
last precise pa
342.8
last precise sep
0.14
 
 
ORBITAL ELEMENTS
 
 
Period (P)47.16y Periastron (T)2020.44y Semi-major axis (a)0.14a
Eccentricity (e)0.198 Inclination (i)59.5° Longitude of periastron (ω)80.8°
Node (Ω)166.1° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.086 90.2
2001 0.089 99.9
2002 0.094 108.9
2003 0.099 116.9
2004 0.105 124.0
2005 0.111 130.4
2006 0.117 136.1
2007 0.123 141.3
2008 0.127 146.0
2009 0.131 150.5
2010 0.133 154.7
2011 0.134 158.9
2012 0.132 163.1
2013 0.129 167.4
2014 0.124 172.1
2015 0.116 177.2
2016 0.107 183.2
2017 0.095 190.5
2018 0.083 199.9
2019 0.071 212.4
2020 0.062 229.4
2021 0.057 250.8
2022 0.059 273.2
2023 0.067 292.0
2024 0.079 306.0
2025 0.091 316.4
2026 0.104 324.2
2027 0.115 330.4
2028 0.124 335.7
2029 0.131 340.2
2030 0.137 344.3

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

grafico orbita





wds19336%2B3846a.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
19336+3846 CHR 87 1996 12 59 0.1 7.19 7.68 A3V O 193336.43+384542.9
19336+3846 CHR 87 2006 13 135 0.1 7.19 7.68 A3V O 193336.43+384542.9
19336+3846 CHR 87 2010 14 338 0.1 7.19 7.68 A3V OD 193336.43+384542.9
19336+3846 CHR 87 2011 16 343 0.1 7.19 7.68 A3V O 193336.43+384542.9

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