18415+4644 BRT1921

 
 
18h 41m 27.64s +46 43' 22.1" P.A. 171 sep 6 mag 11.80,12.20
 
 
Coord 2000
18415+4644
Discov num
BRT1921
Comp
Coord arcsec 2000
18 41 27.64 +46 43 22.1
Date first
1900
Date last
2010
Obs
5
Pa first
165
Pa last
171
P.A. Now (θ)
171°
Sep first
4.5
Sep last
6.0
Sep. Now (ρ)
6"
Mag pri
11.80
Mag sec
12.20
delta mag (ΔM)
0.4
Spectral class
Pri motion ra
+000
Sec motion ra
+007
Pri motion dec
+018
Sec motion dec
-031
Notes
rPM=1.557
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
170.8
Precise sep
5.98
Constellation
Lyra
last precise pa
170.8
last precise sep
5.98
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18415+4644 BRT1921 1936 1 165 4.5 11.80 12.20 184112.00+464400.0
18415+4644 BRT1921 2000 3 169 6.0 11.80 12.20 D 184127.64+464322.1
18415+4644 BRT1921 2008 4 172 6.1 11.80 12.20 D 184127.64+464322.1
18415+4644 BRT1921 2010 5 171 5.1 11.80 12.20 184127.64+464322.1

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