20157+1457 BKO 550

 
 
20h 15m 42.90s +14 56' 59.3" P.A. 301 sep 3.8 mag 13.50,14.00
 
 
Coord 2000
20157+1457
Discov num
BKO 550
Comp
Coord arcsec 2000
20 15 42.90 +14 56 59.3
Date first
1998
Date last
2015
Obs
4
Pa first
297
Pa last
301
P.A. Now (θ)
301°
Sep first
3.9
Sep last
3.8
Sep. Now (ρ)
3.8"
Mag pri
13.50
Mag sec
14.00
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
+018
Sec motion ra
Pri motion dec
-027
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
301
Precise sep
3.754
Constellation
Delphinus
Gaia DR2
31251668608
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20157+1457 BKO 550 2008 1 299 3.9 13.50 14.00 N 201542.90+145659.3
20157+1457 BKO 550 2010 4 292 3.7 13.50 14.00 N 201542.90+145659.3
20157+1457 BKO 550 2015 4 301 3.8 13.50 14.00 N 201542.90+145659.3

If you need more information about this double, apply for a data request form to the WDS.