04275+1113 BU 1186

 
 
04h 27m 28.77s +11 12' 44.4" P.A. 203.4 sep 0.24 mag 6.07,7.94 Sp B8IV dist. 180.18 pc (587.75 l.y.)
 
 
Coord 2000
04275+1113
Discov num
BU 1186
Comp
Coord arcsec 2000
04 27 28.77 +11 12 44.4
Date first
1890
Date last
1996
Obs
41
Pa first
182
Pa last
78
P.A. Now (θ)
203.4°
Sep first
0.6
Sep last
0.1
Sep. Now (ρ)
0.24"
Mag pri
6.07
Mag sec
7.94
delta mag (ΔM)
1.87
Spectral class
B8IV (blue-white)
Pri motion ra
-005
Sec motion ra
Pri motion dec
-008
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
78.1
Precise sep
0.127
Constellation
Taurus
SAO
93943
HIP
20804
Tycho2
0672-01283-1
HD
28217
HR
1402
ADS
3228
BD
BD+10 577
Distance
180.18
Distance ly
587.75
last precise pa
78.1
last precise sep
0.127
 
 
ORBITAL ELEMENTS
 
 
Period (P)160.59y Periastron (T)2005.8y Semi-major axis (a)0.401a
Eccentricity (e)0.74 Inclination (i)118.6° Longitude of periastron (ω)27.3°
Node (Ω)5.4° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1996
label rho theta
2000 0.114 45.2
2001 0.115 36.4
2002 0.116 27.8
2003 0.116 19.2
2004 0.113 10.4
2005 0.105 0.7
2006 0.093 348.9
2007 0.077 332.7
2008 0.065 309.4
2009 0.064 280.5
2010 0.075 255.4
2011 0.093 238.5
2012 0.115 227.7
2013 0.138 220.3
2014 0.160 215.1
2015 0.183 211.1
2016 0.204 208.0
2017 0.225 205.5
2018 0.244 203.4
2019 0.263 201.6
2020 0.282 200.0
2021 0.299 198.6
2022 0.316 197.4
2023 0.332 196.3
2024 0.347 195.3
2025 0.362 194.4
2026 0.376 193.5
2027 0.390 192.7
2028 0.403 192.0
2029 0.416 191.3
2030 0.428 190.6

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

grafico orbita





wds04275%2B1113a.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
04275+1113 BU 1186 1996 40 78 0.1 6.07 7.94 B8IV NOD 042728.77+111244.4

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