23078+6338 HU  994

 
 
23h 07m 47.74s +63 38' 00.5" P.A. 322.1 sep 0.15 mag 7.16,6.87 Sp B3V dist. 409.84 pc (1336.9 l.y.)
 
 
Coord 2000
23078+6338
Discov num
HU  994
Comp
Coord arcsec 2000
23 07 47.74 +63 38 00.5
Date first
1904
Date last
2011
Obs
60
Pa first
306
Pa last
316
P.A. Now (θ)
322.1°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.15"
Mag pri
7.16
Mag sec
6.87
delta mag (ΔM)
0.29
Spectral class
B3V (blue-white)
Pri motion ra
+011
Sec motion ra
Pri motion dec
+003
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
315.6
Precise sep
0.211
Cdsa2 id
HU 994
Constellation
Cepheus
SAO
20439
HIP
114212
HD
218537
HR
8808
ADS
16530
Ra deg
23.129927777777777
De deg
63.633472222222224
Distance
409.84
Distance ly
1336.9
last precise pa
315.6
last precise sep
0.211
 
 
ORBITAL ELEMENTS
 
 
Period (P)237.7y Periastron (T)1967.4y Semi-major axis (a)0.281a
Eccentricity (e)0.289 Inclination (i)82.1° Longitude of periastron (ω)128.4°
Node (Ω)129.6° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 0.216 313.9
2001 0.214 314.3
2002 0.212 314.6
2003 0.209 315.0
2004 0.207 315.3
2005 0.204 315.7
2006 0.201 316.1
2007 0.198 316.5
2008 0.194 316.9
2009 0.191 317.3
2010 0.187 317.8
2011 0.184 318.2
2012 0.180 318.7
2013 0.176 319.2
2014 0.172 319.7
2015 0.167 320.3
2016 0.163 320.8
2017 0.159 321.5
2018 0.154 322.1
2019 0.149 322.8
2020 0.145 323.5
2021 0.140 324.3
2022 0.135 325.1
2023 0.130 326.0
2024 0.125 327.0
2025 0.121 328.0
2026 0.116 329.1
2027 0.111 330.4
2028 0.106 331.7
2029 0.101 333.2
2030 0.096 334.8

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

grafico orbita





wds23078%2B6338a.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
23078+6338 HU 994 2005 54 136 0.2 7.16 6.87 B3V NO 230747.74+633800.5
23078+6338 HU 994 2006 55 315 0.2 7.16 6.87 B3V NO 230747.74+633800.5
23078+6338 HU 994 2008 58 319 0.2 7.16 6.87 B3V NO 230747.74+633800.5
23078+6338 HU 994 2011 59 316 0.2 7.16 6.87 B3V NO 230747.74+633800.5

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