20139+1611 BPM2065AB

 
 
20h 13m 51.86s +16 10' 42.3" P.A. 37.00 sep 72.8 mag 12.23,14.06
 
 
Coord 2000
20139+1611
Discov num
BPM2065
Comp
AB
Coord arcsec 2000
20 13 51.86 +16 10 42.3
Date first
1980
Date last
2015
Obs
7
Pa first
37
Pa last
37
P.A. Now (θ)
37°
Sep first
71.8
Sep last
72.8
Sep. Now (ρ)
72.8"
Mag pri
12.23
Mag sec
14.06
delta mag (ΔM)
1.83
Spectral class
Pri motion ra
-002
Sec motion ra
-011
Pri motion dec
-026
Sec motion dec
-024
Notes
N V (See Notes, Proper motion indicates physical)
Visually invisible, K-band or other infrared star rPM=0.349
This double is physical.
 
 
20139+1611 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 105864 20139+1611 BPM2065 AB 1980 2015 7 37 72.8 12.23 14.06 1.83 <===
Show 105864 20139+1611 BPM2066 BC 1991 2015 8 319 100.1 14.06 15.82 1.76
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
37.1
Precise sep
72.803
Constellation
Sagitta
SAO
105864
Gaia DR2
06239410176
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20139+1611 BPM2065 AB 1998 2 37 72.7 12.27 14.18 NV 201351.86+161042.3
20139+1611 BPM2065 AB 2001 3 37 72.7 12.27 14.18 NV 201351.86+161042.3
20139+1611 BPM2065 AB 2015 7 37 72.8 12.23 14.06 NV 201351.86+161042.3

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