01198-0031 FIN 337BC

 
 
01H 19M 48.33S -00 30' 31.0" P.A. 115.4 SEP 0.1 MAG 7.40,7.60 SP F5 DIST. 100.7 PC (328.48 L.Y.)
 
 
Coord 2000
01198-0031
Discov num
FIN 337
Comp
BC
Coord arcsec 2000
01 19 48.33 -00 30 31.0
Date first
1958
Date last
2015
Obs
84
Pa first
227
Pa last
280
P.A. Now (θ)
115.4°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
7.40
Mag sec
7.60
delta mag (ΔM)
0.2
Spectral class
F5 (yellow-white)
Pri motion ra
+013
Sec motion ra
Pri motion dec
-014
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
01198-0031 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 42 Cet 129235 01198-0031 STF 113 A,BC 1829 2016 325 21 1.6 6.45 6.99 0.54 Y
Show 129235 01198-0031 FIN 337 BC 1958 2015 84 115 0.1 7.40 7.60 0.20 Y <===
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cetus
SAO
129235
HIP
6226
HD
8036
HR
385
GC
1600
ADS
1081
Flamsteed
42 Ceti
Flamsteed name
42 Cet
Distance
100.7
Distance ly
328.48
last precise pa
280.4
last precise sep
0.107
 
 
ORBITAL ELEMENTS
 
 
Period (P)27.028y± 0.09 Periastron (T)1995.04y± 0.13 Semi-major axis (a)0.10855a± 0.00071
Eccentricity (e)0.215± 0.011 Inclination (i)16.8°± 2.8 Longitude of periastron (ω)13°± 18
Node (Ω)194°± 17 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 0.100 298.1
2001 0.106 312.1
2002 0.112 324.6
2003 0.117 335.8
2004 0.122 346.0
2005 0.126 355.6
2006 0.129 4.6
2007 0.131 13.3
2008 0.132 21.8
2009 0.131 30.2
2010 0.130 38.8
2011 0.128 47.7
2012 0.124 56.9
2013 0.120 66.7
2014 0.115 77.3
2015 0.110 88.8
2016 0.105 101.4
2017 0.100 115.4
2018 0.095 130.8
2019 0.091 147.6
2020 0.088 165.8
2021 0.086 185.0
2022 0.085 205.1
2023 0.085 225.4
2024 0.086 245.4
2025 0.089 264.5
2026 0.094 282.0
2027 0.099 297.7
2028 0.105 311.7
2029 0.111 324.2
2030 0.117 335.5

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