23164+6407 BU  992

 
 
23h 16m 23.52s +64 06' 58.5" P.A. 20.8 sep 0.39 mag 8.21,8.29 Sp F0 dist. 273.22 pc (891.24 l.y.)
 
 
Coord 2000
23164+6407
Discov num
BU  992
Comp
Coord arcsec 2000
23 16 23.52 +64 06 58.5
Date first
1880
Date last
2008
Obs
50
Pa first
171
Pa last
20
P.A. Now (θ)
20.8°
Sep first
0.4
Sep last
0.3
Sep. Now (ρ)
0.39"
Mag pri
8.21
Mag sec
8.29
delta mag (ΔM)
0.08
Spectral class
F0 (yellow-white)
Pri motion ra
+007
Sec motion ra
Pri motion dec
+008
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
19.5
Precise sep
0.269
Cdsa2 id
BU 992
Constellation
Cepheus
HIP
114898
HD
219633
ADS
16638
Ra deg
23.2732
De deg
64.11625
Distance
273.22
Distance ly
891.24
last precise pa
19.5
last precise sep
0.269
 
 
ORBITAL ELEMENTS
 
 
Period (P)516.82y Periastron (T)1880.81y Semi-major axis (a)0.43a
Eccentricity (e)0.365 Inclination (i)122.67° Longitude of periastron (ω)0.94°
Node (Ω)171.29° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation1979
label rho theta
2000 0.335 29.6
2001 0.338 29.1
2002 0.342 28.5
2003 0.345 28.0
2004 0.348 27.4
2005 0.351 26.9
2006 0.355 26.4
2007 0.358 25.9
2008 0.361 25.4
2009 0.364 24.9
2010 0.368 24.4
2011 0.371 23.9
2012 0.374 23.5
2013 0.377 23.0
2014 0.380 22.5
2015 0.383 22.1
2016 0.387 21.7
2017 0.390 21.2
2018 0.393 20.8
2019 0.396 20.4
2020 0.399 20.0
2021 0.402 19.6
2022 0.405 19.2
2023 0.408 18.8
2024 0.411 18.4
2025 0.414 18.0
2026 0.417 17.6
2027 0.420 17.3
2028 0.423 16.9
2029 0.426 16.6
2030 0.428 16.2

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

grafico orbita





wds23164%2B6407a.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
23164+6407 BU 992 2001 49 24 0.3 8.21 8.29 F0 NO 231623.52+640658.5
23164+6407 BU 992 2007 50 21 0.2 8.21 8.29 F0 NO 231623.52+640658.5
23164+6407 BU 992 2008 51 20 0.3 8.21 8.29 F0 NO 231623.52+640658.5

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