19543+1719 BPM1815

 
 
19h 54m 19.69s +17 18' 48.3" P.A. 247.00 sep 21.9 mag 15.81,15.87
 
 
Coord 2000
19543+1719
Discov num
BPM1815
Comp
Coord arcsec 2000
19 54 19.69 +17 18 48.3
Date first
1989
Date last
2015
Obs
9
Pa first
248
Pa last
247
P.A. Now (θ)
247°
Sep first
21.3
Sep last
21.9
Sep. Now (ρ)
21.9"
Mag pri
15.81
Mag sec
15.87
delta mag (ΔM)
0.06
Spectral class
Pri motion ra
+011
Sec motion ra
+013
Pri motion dec
+006
Sec motion dec
-014
Notes
N U (See Notes, Proper motion indicates non-physical)
Visually invisible, K-band or other infrared star rPM=1.052
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
247
Precise sep
21.866
Constellation
Sagitta
Gaia DR2
11853851264
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19543+1719 BPM1815 1997 2 247 21.5 15.81 15.87 NV 195419.69+171848.3
19543+1719 BPM1815 2001 3 247 21.8 15.81 15.87 NV 195419.69+171848.3
19543+1719 BPM1815 2010 4 248 21.5 15.81 15.87 NV 195419.69+171848.3
19543+1719 BPM1815 2015 5 247 22.1 15.81 15.87 NU 195419.69+171848.3

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