20057+1617 BPM1992

 
 
20h 05m 42.98s +16 17' 08.9" P.A. 139.00 sep 118.9 mag 14.85,15.66
 
 
Coord 2000
20057+1617
Discov num
BPM1992
Comp
Coord arcsec 2000
20 05 42.98 +16 17 08.9
Date first
1995
Date last
2015
Obs
8
Pa first
139
Pa last
139
P.A. Now (θ)
139°
Sep first
119.3
Sep last
118.9
Sep. Now (ρ)
118.9"
Mag pri
14.85
Mag sec
15.66
delta mag (ΔM)
0.81
Spectral class
Pri motion ra
-038
Sec motion ra
-024
Pri motion dec
-010
Sec motion dec
-018
Notes
N V (See Notes, Proper motion indicates physical)
Visually invisible, K-band or other infrared star rPM=0.41
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
139.1
Precise sep
118.88
Constellation
Sagitta
Gaia DR2
12587332096
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20057+1617 BPM1992 2000 2 139 119.0 14.85 15.66 NV 200542.98+161708.9
20057+1617 BPM1992 2001 3 139 119.0 14.85 15.66 NV 200542.98+161708.9
20057+1617 BPM1992 2010 4 139 119.3 14.85 15.66 NV 200542.98+161708.9
20057+1617 BPM1992 2015 4 139 118.9 14.85 15.66 NV 200542.98+161708.9

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