01417-1119 STF 147

 
 
01H 41M 44.84S -11 19' 28.9" P.A. 279.6 SEP 0.15 MAG 6.14,7.17 SP F5V+F7V DIST. 39.45 PC (128.69 L.Y.)
 
 
Coord 2000
01417-1119
Discov num
STF 147
Comp
Coord arcsec 2000
01 41 44.84 -11 19 28.9
Date first
1822
Date last
2014
Obs
168
Pa first
86
Pa last
266
P.A. Now (θ)
279.6°
Sep first
3.5
Sep last
0.2
Sep. Now (ρ)
0.15"
Mag pri
6.14
Mag sec
7.17
delta mag (ΔM)
1.03
Spectral class
F5V+F7V (yellow-white/yellow-white)
Pri motion ra
+043
Sec motion ra
+043
Pri motion dec
-417
Sec motion dec
-417
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cetus
SAO
147962
HIP
7916
Tycho2
5279-02153-1
HD
10453
HR
492
ADS
1339
BD
BD-12 315
Distance
39.45
Distance ly
128.69
last precise pa
265.8
last precise sep
0.22
 
 
ORBITAL ELEMENTS
 
 
Period (P)627y Periastron (T)2014.7y Semi-major axis (a)2.5a
Eccentricity (e)0.919 Inclination (i)82° Longitude of periastron (ω)174.7°
Node (Ω)86.9° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2012
label rho theta
2000 0.659 94.9
2001 0.608 95.4
2002 0.555 96.0
2003 0.501 96.7
2004 0.446 97.6
2005 0.389 98.7
2006 0.330 100.3
2007 0.270 102.5
2008 0.208 106.0
2009 0.146 112.4
2010 0.086 128.3
2011 0.050 182.0
2012 0.083 238.0
2013 0.139 255.0
2014 0.185 262.5
2015 0.203 267.6
2016 0.187 272.6
2017 0.148 279.6
2018 0.102 292.6
2019 0.064 323.9
2020 0.066 17.3
2021 0.107 46.3
2022 0.157 58.1
2023 0.210 64.1
2024 0.262 67.7
2025 0.314 70.1
2026 0.365 71.8
2027 0.415 73.1
2028 0.463 74.1
2029 0.511 74.9
2030 0.558 75.6

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