20293+1155 BPM2173AB

 
 
20h 29m 15.19s +11 55' 16.2" P.A. 21 sep 4.6 mag 13.30,14.80
 
 
Coord 2000
20293+1155
Discov num
BPM2173
Comp
AB
Coord arcsec 2000
20 29 15.19 +11 55 16.2
Date first
1997
Date last
2015
Obs
2
Pa first
22
Pa last
21
P.A. Now (θ)
21°
Sep first
4.5
Sep last
4.6
Sep. Now (ρ)
4.6"
Mag pri
13.30
Mag sec
14.80
delta mag (ΔM)
1.5
Spectral class
Pri motion ra
-008
Sec motion ra
-005
Pri motion dec
-020
Sec motion dec
+025
Notes
N (See Notes)
rPM=1.769
This double is not physical.
 
 
20293+1155 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20293+1155 BPM2173 AB 1997 2015 2 21 4.6 13.30 14.80 1.50 <===
Show 20293+1155 BPM2173 AC 1983 2015 4 35 34.0 13.30 14.28 0.98
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
21.1
Precise sep
4.562
Constellation
Delphinus
Gaia DR2
69148459264
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20293+1155 BPM2173 AB 1997 1 22 4.5 13.30 14.80 N 202915.19+115516.2
20293+1155 BPM2173 AB 2001 2 21 4.5 13.30 14.80 N 202915.19+115516.2
20293+1155 BPM2173 AB 2015 2 21 4.6 13.30 14.80 N 202915.19+115516.2

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