20157-1849 HJ 2940AC

 
 
20h 15m 42.64s -18 49' 00.7" P.A. 77.00 sep 20.6 mag 11.42,11.70 Sp F4V
 
 
Coord 2000
20157-1849
Discov num
HJ 2940
Comp
AC
Coord arcsec 2000
20 15 42.64 -18 49 00.7
Date first
1830
Date last
2017
Obs
11
Pa first
86
Pa last
77
P.A. Now (θ)
77°
Sep first
25.0
Sep last
20.6
Sep. Now (ρ)
20.6"
Mag pri
11.42
Mag sec
11.70
delta mag (ΔM)
0.28
Spectral class
F4V (yellow-white)
Pri motion ra
+002
Sec motion ra
-001
Pri motion dec
-027
Sec motion dec
-007
Notes
U (Proper motion indicates non-physical)
Visually invisible, K-band or other infrared star rPM=0.747
This double is not physical.
 
 
20157-1849 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20157-1849 HJ 2940 AB 1830 2015 6 101 35.3 11.42 12.80 1.38
Show 20157-1849 HJ 2940 AC 1830 2017 11 77 20.6 11.42 11.70 0.28 <===
Show 20157-1849 ABH 134 AD 1987 2015 4 103 70.6 11.42 14.58 3.16
Show 20157-1849 ABH 134 AE 1987 2015 5 252 84.5 11.42 12.86 1.44
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
77
Precise sep
20.578
Constellation
Capricornus
Tycho2
6323-00425-1
Gaia DR2
12374322432
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20157-1849 HJ 2940 AC 1998 6 77 20.7 11.42 11.51 F4V D 201542.64-184900.7
20157-1849 HJ 2940 AC 1999 7 77 20.7 11.42 11.51 F4V UD 201542.64-184900.7
20157-1849 HJ 2940 AC 2016 9 77 20.8 11.42 11.70 F4V U 201542.64-184900.7
20157-1849 HJ 2940 AC 2017 10 77 20.6 11.42 11.70 F4V U 201542.64-184900.7

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