20006+1657 BPM1921

 
 
20h 00m 33.28s +16 57' 05.9" P.A. 221.00 sep 78.6 mag 14.18,14.69
 
 
Coord 2000
20006+1657
Discov num
BPM1921
Comp
Coord arcsec 2000
20 00 33.28 +16 57 05.9
Date first
1995
Date last
2015
Obs
9
Pa first
221
Pa last
221
P.A. Now (θ)
221°
Sep first
78.5
Sep last
78.6
Sep. Now (ρ)
78.6"
Mag pri
14.18
Mag sec
14.69
delta mag (ΔM)
0.51
Spectral class
Pri motion ra
-021
Sec motion ra
-014
Pri motion dec
-017
Sec motion dec
-018
Notes
N V (See Notes, Proper motion indicates physical)
Visually invisible, K-band or other infrared star rPM=0.262 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
220.7
Precise sep
78.593
Constellation
Sagitta
SAO
105542
Gaia DR2
76389490816
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20006+1657 BPM1921 1997 2 221 78.5 14.27 14.50 NV 200033.28+165705.9
20006+1657 BPM1921 2001 3 221 78.6 14.27 14.50 NV 200033.28+165705.9
20006+1657 BPM1921 2010 4 221 78.2 14.18 14.69 NV 200033.28+165705.9
20006+1657 BPM1921 2015 5 221 78.6 14.18 14.69 NV 200033.28+165705.9

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