20140-2808 TDT2109AB

 
 
20h 13m 57.83s -28 07' 46.7" P.A. 27 sep 1.8 mag 10.90,12.00
 
 
Coord 2000
20140-2808
Discov num
TDT2109
Comp
AB
Coord arcsec 2000
20 13 57.83 -28 07 46.7
Date first
1991
Date last
1991
Obs
1
Pa first
27
Pa last
27
P.A. Now (θ)
27°
Sep first
1.8
Sep last
1.8
Sep. Now (ρ)
1.8"
Mag pri
10.90
Mag sec
12.00
delta mag (ΔM)
1.1
Spectral class
Pri motion ra
-030
Sec motion ra
-030
Pri motion dec
+005
Sec motion dec
-003
Notes
rPM=0.263 (< 0.3, Physical double)
This double is physical.
 
 
20140-2808 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20140-2808 TDT2109 AB 1991 1991 1 27 1.8 10.90 12.00 1.10 <===
Show 20140-2808 HJ 5180 AC 1834 2015 9 221 10.2 10.81 11.80 0.99
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
27.1
Precise sep
1.79
Constellation
Sagittarius
SAO
189047
Tycho2
6918-00147-1
Gaia DR2
33529449216
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20140-2808 TDT2109 AB 1991 1 27 1.8 10.90 12.00 201357.84-280746.8

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