20257-2341 HJ 2957AB

 
 
20h 25m 42.87s -23 40' 45.8" P.A. 275 sep 15 mag 11.37,11.73
 
 
Coord 2000
20257-2341
Discov num
HJ 2957
Comp
AB
Coord arcsec 2000
20 25 42.87 -23 40 45.8
Date first
1919
Date last
2015
Obs
6
Pa first
267
Pa last
275
P.A. Now (θ)
275°
Sep first
15.9
Sep last
15.0
Sep. Now (ρ)
15"
Mag pri
11.37
Mag sec
11.73
delta mag (ΔM)
0.36
Spectral class
Pri motion ra
-023
Sec motion ra
-011
Pri motion dec
-044
Sec motion dec
-017
Notes
rPM=0.595
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
275.3
Precise sep
15.03
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 HJ 2957 AB 1998 4 273 15.1 11.37 11.73 D 202542.87-234045.8
20257-2341 HJ 2957 AB 1999 5 274 15.1 11.37 11.73 D 202542.87-234045.8
20257-2341 HJ 2957 AB 2015 6 275 15.0 11.37 11.73 202542.87-234045.8

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