01409+0138 A  2404

 
 
01H 40M 52.03S +01 37' 41.8" P.A. 1.9 SEP 0.25 MAG 9.30,9.30 SP F8 DIST. 187.62 PC (612.02 L.Y.)
 
 
Coord 2000
01409+0138
Discov num
A  2404
Comp
Coord arcsec 2000
01 40 52.03 +01 37 41.8
Date first
1911
Date last
1996
Obs
26
Pa first
1
Pa last
32
P.A. Now (θ)
1.9°
Sep first
0.3
Sep last
0.1
Sep. Now (ρ)
0.25"
Mag pri
9.30
Mag sec
9.30
delta mag (ΔM)
0
Spectral class
F8 (yellow-white)
Pri motion ra
+048
Sec motion ra
Pri motion dec
+039
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cetus
HIP
7842
Tycho2
0029-00562-1
HD
10313
ADS
1323
BD
BD+00 270
Distance
187.62
Distance ly
612.02
last precise pa
31.6
last precise sep
0.11
 
 
ORBITAL ELEMENTS
 
 
Period (P)114.3y Periastron (T)1960.9y Semi-major axis (a)0.235a
Eccentricity (e)0.073 Inclination (i)104.7° Longitude of periastron (ω)352.4°
Node (Ω)179.2° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1996
label rho theta
2000 0.141 21.1
2001 0.150 19.1
2002 0.159 17.2
2003 0.168 15.6
2004 0.177 14.1
2005 0.185 12.8
2006 0.193 11.5
2007 0.200 10.4
2008 0.208 9.3
2009 0.214 8.4
2010 0.220 7.4
2011 0.226 6.5
2012 0.231 5.7
2013 0.235 4.9
2014 0.239 4.1
2015 0.243 3.3
2016 0.246 2.6
2017 0.248 1.9
2018 0.250 1.2
2019 0.251 0.5
2020 0.252 359.8
2021 0.252 359.1
2022 0.251 358.4
2023 0.250 357.7
2024 0.249 357.0
2025 0.246 356.3
2026 0.244 355.5
2027 0.240 354.8
2028 0.236 354.0
2029 0.232 353.2
2030 0.227 352.4

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