18081+0213 BU  636AD

 
 
18h 08m 07.24s +02 13' 07.2" P.A. 348 sep 40.8 mag 6.64,11.12 Sp A4V dist. 134.77 pc (439.62 l.y.)
 
 
Coord 2000
18081+0213
Discov num
BU  636
Comp
AD
Coord arcsec 2000
18 08 07.24 +02 13 07.2
Date first
1923
Date last
2002
Obs
5
Pa first
349
Pa last
348
P.A. Now (θ)
348°
Sep first
41.5
Sep last
40.8
Sep. Now (ρ)
40.8"
Mag pri
6.64
Mag sec
11.12
delta mag (ΔM)
4.48
Spectral class
A4V (white)
Pri motion ra
+012
Sec motion ra
+005
Pri motion dec
-007
Sec motion dec
-003
Notes
rPM=0.58
Nature of this double is uncertain.
 
 
18081+0213 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18081+0213 BU 636 AB 1878 1975 11 126 1.9 6.64 11.80 5.16
Show 18081+0213 BU 636 AC 1898 2002 5 92 12.5 6.64 13.60 6.96
Show 18081+0213 BU 636 AD 1923 2002 5 348 40.8 6.64 11.12 4.48 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
347.6
Precise sep
40.75
Cdsa2 id
BU 636 AD
Constellation
Ophiuchus
HIP
88841
Tycho2
0435-04738-1
HD
165887
BD
BD+02 3498
Ra deg
18.135344444444446
De deg
2.2186666666666666
Distance
134.77
Distance ly
439.62
last precise pa
347.6
last precise sep
40.75
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18081+0213 BU 636 AD 2002 4 348 40.8 6.64 11.12 A4V D 180807.24+021307.2

If you need more information about this double, apply for a data request form to the WDS.
 
 
WDS 18081+0213 BU 636AD : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
BU Burnham, S.W. (BU 1 - 81)
BU Burnham, S.W. (BU 82 - 106)
BU Burnham, S.W.
BU Burnham, S.W. (BU 107 - 182)
BU Burnham, S.W. (BU 183 - 229)
BU Burnham, S.W. (BU 230 - 300)
BU Burnham, S.W. (BU 301 - 390)
BU Burnham, S.W. (BU 391 - 436)
BU Burnham, S.W. (BU 453 - 482)
BU Burnham, S.W. (BU 776 - 863)
BU Burnham, S.W. (BU 864 - 1025)
BU Bunham, S.W.
BU Burnham, S.W. (BU 734 - 775)
BU Burnham, S.W. (BU 1026 - 1038)
BU Burnham, S.W. (BU 1093 - 1154)
BU Burnham, S.W. (BU 1225 - 1266)
BU Burnham, S.W. (BU 1267 - 1274)
BU Burnham, S.W. (BU 1039 - 1092)
BU Burnham, S.W. (BU 1155 - 1224)

 
 
WDS 18081+0213 BU 636AD : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18081+0213 BU 636AD : MEASURES
 
 
No records found.

 
 
WDS 18081+0213 BU 636AD : Virtual Eyepiece
 
 

18081+0213  BU  636 A 18081+0213  BU  636AB sep 1.9 P.A. 126 mag 6.64,11.80 Sp A4V 18081+0213  BU  636AC sep 12.5 P.A. 92 mag 6.64,13.60 Sp A4V 18081+0213  BU  636AD sep 40.8 P.A. 348 mag 6.64,11.12 Sp A4V virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Radius:
 
 
WDS 18081+0213 BU 636AD : Aladin DSS image @ 18h 08m 07.24s +02 13' 07.2"