20257-2341 DAW 227AC

 
 
20h 25m 42.87s -23 40' 45.8" P.A. 57 sep 19.6 mag 11.37,13.10
 
 
Coord 2000
20257-2341
Discov num
DAW 227
Comp
AC
Coord arcsec 2000
20 25 42.87 -23 40 45.8
Date first
1919
Date last
1999
Obs
3
Pa first
61
Pa last
57
P.A. Now (θ)
57°
Sep first
19.2
Sep last
19.6
Sep. Now (ρ)
19.6"
Mag pri
11.37
Mag sec
13.10
delta mag (ΔM)
1.73
Spectral class
Pri motion ra
-023
Sec motion ra
-020
Pri motion dec
-044
Sec motion dec
-023
Notes
rPM=0.427
Nature of this double is uncertain.
 
 
20257-2341 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20257-2341 HJ 2957 AB 1919 2015 6 275 15.0 11.37 11.73 0.36
Show 20257-2341 DAW 227 AC 1919 1999 3 57 19.6 11.37 13.10 1.73 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
56.7
Precise sep
19.595
Constellation
Capricornus
Tycho2
6907-00688-1
Gaia DR2
31413344384
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20257-2341 DAW 227 AC 1998 2 57 19.6 11.37 13.10 D 202542.87-234045.8
20257-2341 DAW 227 AC 1999 3 57 19.6 11.37 13.10 D 202542.87-234045.8

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