20157+1534 BKO 547

 
 
20h 15m 43.36s +15 34' 19.6" P.A. 91 sep 4.4 mag 13.50,14.00
 
 
Coord 2000
20157+1534
Discov num
BKO 547
Comp
Coord arcsec 2000
20 15 43.36 +15 34 19.6
Date first
1998
Date last
2015
Obs
5
Pa first
90
Pa last
91
P.A. Now (θ)
91°
Sep first
4.4
Sep last
4.4
Sep. Now (ρ)
4.4"
Mag pri
13.50
Mag sec
14.00
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
-026
Sec motion ra
Pri motion dec
-005
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
90.5
Precise sep
4.437
Constellation
Delphinus
Gaia DR2
53112128000
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20157+1534 BKO 547 2008 1 90 4.3 13.50 14.00 N 201543.36+153419.6
20157+1534 BKO 547 2010 4 91 3.6 13.50 14.00 N 201543.36+153419.6
20157+1534 BKO 547 2015 5 91 4.4 13.50 14.00 N 201543.36+153419.6

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