20157+1508 BKO 549AC

 
 
20h 15m 42.96s +15 08' 40.1" P.A. 111 sep 4.8 mag 12.54,15.00
 
 
Coord 2000
20157+1508
Discov num
BKO 549
Comp
AC
Coord arcsec 2000
20 15 42.96 +15 08 40.1
Date first
1998
Date last
2015
Obs
4
Pa first
111
Pa last
111
P.A. Now (θ)
111°
Sep first
4.7
Sep last
4.8
Sep. Now (ρ)
4.8"
Mag pri
12.54
Mag sec
15.00
delta mag (ΔM)
2.46
Spectral class
Pri motion ra
-094
Sec motion ra
Pri motion dec
+040
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
20157+1508 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20157+1508 CHE 249 AB 1910 2018 6 349 22.6 12.54 13.85 1.31
Show 20157+1508 BKO 549 AC 1998 2015 4 111 4.8 12.54 15.00 2.46 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
110.5
Precise sep
4.806
Constellation
Delphinus
Gaia DR2
40638198656
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20157+1508 BKO 549 AC 2008 1 112 4.9 12.54 15.00 N 201542.96+150840.1
20157+1508 BKO 549 AC 2015 4 111 4.8 12.54 15.00 N 201542.96+150840.1

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