00352-0336 HO  212AB (13 Cet)

 
 
00H 35M 14.86S -03 35' 34.2" P.A. 239.5 SEP 0.25 MAG 5.61,6.90 SP F8V DIST. 21.25 PC (69.32 L.Y.)
 
 
Coord 2000
00352-0336
Discov num
HO  212
Comp
AB
Coord arcsec 2000
00 35 14.86 -03 35 34.2
Date first
1886
Date last
2014
Obs
230
Pa first
260
Pa last
67
P.A. Now (θ)
239.5°
Sep first
0.3
Sep last
0.0
Sep. Now (ρ)
0.25"
Mag pri
5.61
Mag sec
6.90
delta mag (ΔM)
1.29
Spectral class
F8V (yellow-white)
Pri motion ra
+408
Sec motion ra
Pri motion dec
-037
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
00352-0336 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 13 Cet 128839 00352-0336 HO 212 AB 1886 2014 230 240 0.2 5.61 6.90 1.29 Y <===
Show 128839 00352-0336 BU 490 AB,C 1877 1999 16 322 24.0 4.91 12.50 7.59
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
13 Cet
Var name
BU Cet
Constellation
Cetus
SAO
128839
HIP
2762
Tycho2
4675-01216-3
HD
3196
HR
142
GC
696
ADS
490
GL
Gl 23A
BD
BD-04 62
Flamsteed
13 Ceti
Flamsteed name
13 Cet
Distance
21.25
Distance ly
69.32
last precise pa
67.3
last precise sep
0.036
 
 
ORBITAL ELEMENTS
 
 
Period (P)6.89y Periastron (T)2000.98y Semi-major axis (a)0.241a
Eccentricity (e)0.773 Inclination (i)49.4° Longitude of periastron (ω)283.8°
Node (Ω)149° Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation2004
label rho theta
2000 0.225 300.3
2001 0.041 96.5
2002 0.187 208.2
2003 0.245 235.1
2004 0.280 253.1
2005 0.294 268.1
2006 0.279 283.2
2007 0.214 303.2
2008 0.074 143.0
2009 0.195 212.0
2010 0.250 237.3
2011 0.283 254.8
2012 0.293 269.7
2013 0.275 285.0
2014 0.201 306.3
2015 0.100 161.2
2016 0.202 215.5
2017 0.254 239.5
2018 0.285 256.6
2019 0.293 271.3
2020 0.270 286.8
2021 0.187 310.0
2022 0.120 172.6
2023 0.209 218.8
2024 0.259 241.6
2025 0.287 258.2
2026 0.292 273.0
2027 0.265 288.7
2028 0.169 314.4
2029 0.135 181.1
2030 0.216 221.8

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic