20020+1707 BPM1941

 
 
20h 01m 57.83s +17 07' 12.3" P.A. 347.00 sep 105.5 mag 13.60,14.24
 
 
Coord 2000
20020+1707
Discov num
BPM1941
Comp
Coord arcsec 2000
20 01 57.83 +17 07 12.3
Date first
1979
Date last
2015
Obs
8
Pa first
344
Pa last
347
P.A. Now (θ)
347°
Sep first
109.0
Sep last
105.5
Sep. Now (ρ)
105.5"
Mag pri
13.60
Mag sec
14.24
delta mag (ΔM)
0.64
Spectral class
Pri motion ra
+001
Sec motion ra
+009
Pri motion dec
+016
Sec motion dec
+009
Notes
N V (See Notes, Proper motion indicates physical)
Visually invisible, K-band or other infrared star rPM=0.663
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
347.2
Precise sep
105.504
Constellation
Sagitta
Gaia DR2
61182256256
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20020+1707 BPM1941 1997 2 344 109.0 13.60 14.24 NV 200157.83+170712.3
20020+1707 BPM1941 2001 3 344 108.9 13.60 14.24 NV 200157.83+170712.3
20020+1707 BPM1941 2010 4 347 105.9 13.60 14.24 NV 200157.83+170712.3
20020+1707 BPM1941 2015 5 347 105.5 13.60 14.24 NV 200157.83+170712.3

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