21017+1652 BPM2311AB

 
 
21h 01m 43.02s +16 51' 47.0" P.A. 111 sep 113.9 mag 15.06,15.64
 
 
Coord 2000
21017+1652
Discov num
BPM2311
Comp
AB
Coord arcsec 2000
21 01 43.02 +16 51 47.0
Date first
1994
Date last
2001
Obs
3
Pa first
111
Pa last
111
P.A. Now (θ)
111°
Sep first
113.6
Sep last
113.9
Sep. Now (ρ)
113.9"
Mag pri
15.06
Mag sec
15.64
delta mag (ΔM)
0.58
Spectral class
Pri motion ra
-011
Sec motion ra
-011
Pri motion dec
-005
Sec motion dec
-008
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.221 (< 0.3, Physical double)
This double is physical.
 
 
21017+1652 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21017+1652 BPM2311 AB 1994 2001 3 111 113.9 15.06 15.64 0.58 <===
Show 21017+1652 BPM2312 BC 1994 2001 3 68 82.6 15.64 14.70 0.94
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
110.5
Precise sep
113.865
Cdsa2 id
BPM 2311 AB
Constellation
Delphinus
Ra deg
21.028616666666665
De deg
16.863055555555558
last precise pa
110.5
last precise sep
113.865
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21017+1652 BPM2311 AB 1999 2 111 113.8 15.12 15.51 NV 210143.02+165147.0
21017+1652 BPM2311 AB 2001 3 111 113.8 15.12 15.51 NV 210143.02+165147.0

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