18015+0331 BU 1202AB

 
 
18h 01m 32.36s +03 31' 27.4" P.A. 345 sep 0.6 mag 8.67,9.69 Sp A0 dist. 246.91 pc (805.42 l.y.)
 
 
Coord 2000
18015+0331
Discov num
BU 1202
Comp
AB
Coord arcsec 2000
18 01 32.36 +03 31 27.4
Date first
1890
Date last
1999
Obs
21
Pa first
353
Pa last
345
P.A. Now (θ)
345°
Sep first
0.7
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
8.67
Mag sec
9.69
delta mag (ΔM)
1.02
Spectral class
A0 (white)
Pri motion ra
+001
Sec motion ra
+001
Pri motion dec
-010
Sec motion dec
-010
Notes
Nature of this double is uncertain.
 
 
18015+0331 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18015+0331 BU 1202 AB 1890 1999 21 345 0.6 8.67 9.69 1.02 <===
Show 18015+0331 BU 1202 AB,C 1890 2011 22 28 105.2 8.43 10.20 1.77
Show 18015+0331 BU 1202 AB,E 1890 2011 22 138 90.4 8.43 7.95 0.48
Show 18015+0331 BU 1202 CD 1890 2000 9 110 2.8 10.20 12.10 1.90
Show 18015+0331 BU 1202 CF 1899 2011 4 163 17.4 10.20 13.80 3.60
Sextuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
345.1
Precise sep
0.59
Constellation
Ophiuchus
HIP
88271
Tycho2
0434-00976-1
HD
164529
BD
BD+03 3564
Distance
246.91
Distance ly
805.42
last precise pa
345.1
last precise sep
0.59
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18015+0331 BU 1202 AB 1999 21 345 0.6 8.67 9.69 A0 D 180132.36+033127.4

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