19311+5835 MCA  56

 
 
19h 31m 07.96s +58 35' 09.6" P.A. 228 sep 0.1 mag 7.02,8.40 Sp K1V dist. 16.96 pc (55.32 l.y.)
 
 
Coord 2000
19311+5835
Discov num
MCA  56
Comp
Coord arcsec 2000
19 31 07.96 +58 35 09.6
Date first
1980
Date last
2010
Obs
43
Pa first
254
Pa last
228
P.A. Now (θ)
228°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
7.02
Mag sec
8.40
delta mag (ΔM)
1.38
Spectral class
K1V (yellow-orange)
Pri motion ra
-508
Sec motion ra
Pri motion dec
-397
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
227.6
Precise sep
0.106
Cdsa2 id
MCA 56
Constellation
Draco
HIP
95995
HD
184467
GL
Gl 762.1
Ra deg
19.518877777777778
De deg
58.586000000000006
Distance
16.96
Distance ly
55.32
last precise pa
227.6
last precise sep
0.106
 
 
ORBITAL ELEMENTS
 
 
Period (P)494.307d± 0.012 Periastron (T)56549.505d (2013.703y)± 0.043 Semi-major axis (a)0.08103a
Eccentricity (e)0.38933± 0.00029 Inclination (i)146.15°± 0.46 Longitude of periastron (ω)180.325°± 0.041
Node (Ω)245.72°± 0.13 Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000-01-01 0.056 153.0
2001-01-01 0.106 228.6
2002-01-01 0.102 267.9
2003-01-01 0.052 358.6
2004-01-01 0.065 174.9
2005-01-01 0.110 235.4
2006-01-01 0.095 276.1
2007-01-01 0.049 30.5
2008-01-01 0.075 191.3
2009-01-01 0.112 241.9
2010-01-01 0.087 285.8
2011-01-01 0.049 63.4
2012-01-01 0.085 203.7
2013-01-01 0.112 248.2
2014-01-01 0.077 297.8
2015-01-01 0.049 96.2
2016-01-01 0.094 213.7
2017-01-01 0.111 254.7
2018-01-01 0.067 313.4
2019-01-01 0.051 128.3
2020-01-01 0.101 222.0
2021-01-01 0.107 261.4
2022-01-01 0.057 334.6
2023-01-01 0.057 156.0
2024-01-01 0.107 229.4
2025-01-01 0.102 268.8
2026-01-01 0.051 2.3
2027-01-01 0.066 177.2
2028-01-01 0.111 236.2
2029-01-01 0.094 277.1
2030-01-01 0.049 34.5

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

grafico orbita





wds19311%2B5835d.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
19311+5835 MCA 56 2006 32 214 0.1 7.02 8.40 K1V NOD 193108.54+583513.1
19311+5835 MCA 56 2007 34 46 0.1 7.02 8.40 K1V NOD 193108.54+583513.1
19311+5835 MCA 56 2010 41 228 0.1 7.02 8.40 K1V NOD 193108.54+583513.1

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