18429+0545 BU  136

 
 
18h 42m 53.31s +05 44' 27.9" P.A. 7 sep 4.9 mag 9.15,10.19 Sp B9
 
 
Coord 2000
18429+0545
Discov num
BU  136
Comp
Coord arcsec 2000
18 42 53.31 +05 44 27.9
Date first
1873
Date last
2009
Obs
26
Pa first
10
Pa last
7
P.A. Now (θ)
Sep first
4.0
Sep last
4.9
Sep. Now (ρ)
4.9"
Mag pri
9.15
Mag sec
10.19
delta mag (ΔM)
1.04
Spectral class
B9 (blue-white)
Pri motion ra
-004
Sec motion ra
-007
Pri motion dec
-028
Sec motion dec
+002
Notes
rPM=1.066
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
7
Precise sep
4.94
Constellation
Serpens
Tycho2
0459-01307-1
last precise pa
7
last precise sep
4.94
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18429+0545 BU 136 1999 24 7 4.6 9.15 10.19 B9 D 184253.31+054427.9
18429+0545 BU 136 2009 25 7 4.9 9.15 10.19 B9 D 184253.31+054427.9

If you need more information about this double, apply for a data request form to the WDS.