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
Constellation
Draco
SAO
31745
HIP
95995
Tycho2
3933-00756-1
HD
184467
GL
Gl 762.1
BD
BD+58 1929
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

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