18258+4321 BRT1917

 
 
18h 25m 48.33s +43 20' 43.6" P.A. 54 sep 3.5 mag 11.87,11.68
 
 
Coord 2000
18258+4321
Discov num
BRT1917
Comp
Coord arcsec 2000
18 25 48.33 +43 20 43.6
Date first
1894
Date last
2003
Obs
5
Pa first
57
Pa last
54
P.A. Now (θ)
54°
Sep first
3.3
Sep last
3.5
Sep. Now (ρ)
3.5"
Mag pri
11.87
Mag sec
11.68
delta mag (ΔM)
0.19
Spectral class
Pri motion ra
+006
Sec motion ra
+007
Pri motion dec
-009
Sec motion dec
-007
Notes
rPM=0.207 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
53.9
Precise sep
3.546
Constellation
Lyra
Tycho2
3116-00008-1
last precise pa
53.9
last precise sep
3.546
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18258+4321 BRT1917 1999 4 55 3.1 11.87 11.68 D 182548.33+432043.6
18258+4321 BRT1917 2003 5 54 3.5 11.87 11.68 D 182548.33+432043.6

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