04018+1000 HDS 509Aa,Ab

 
 
04H 01M 46.13S +09 59' 52.9" P.A. 54 SEP 0.7 MAG 5.81,7.87 SP B5V DIST. 175.13 PC (571.27 L.Y.)
 
 
Coord 2000
04018+1000
Discov num
HDS 509
Comp
Aa,Ab
Coord arcsec 2000
04 01 46.13 +09 59 52.9
Date first
1991
Date last
2002
Obs
4
Pa first
58
Pa last
54
P.A. Now (θ)
54°
Sep first
0.7
Sep last
0.7
Sep. Now (ρ)
0.7"
Mag pri
5.81
Mag sec
7.87
delta mag (ΔM)
2.06
Spectral class
B5V (blue-white)
Pri motion ra
+008
Sec motion ra
+008
Pri motion dec
+001
Sec motion dec
+001
Notes
Nature of this double is uncertain.
 
 
04018+1000 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 111566 04018+1000 HDS 509 Aa,Ab 1991 2002 4 54 0.7 5.81 7.87 2.06 <===
Show 111566 04018+1000 STT 70 AB 1848 1999 10 230 11.7 5.81 11.21 5.40
Show 111566 04018+1000 WAL 27 AC 1944 1999 2 231 90.6 5.81 11.70 5.89
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Taurus
SAO
111566
HIP
18805
Tycho2
0659-00402-1
HD
25330
HR
1243
BD
BD+09 528
Distance
175.13
Distance ly
571.27
last precise pa
54
last precise sep
0.74