20157-1849 HJ 2940AB

 
 
20h 15m 42.64s -18 49' 00.7" P.A. 101 sep 35.3 mag 11.42,12.80 Sp F4V
 
 
Coord 2000
20157-1849
Discov num
HJ 2940
Comp
AB
Coord arcsec 2000
20 15 42.64 -18 49 00.7
Date first
1830
Date last
2015
Obs
6
Pa first
141
Pa last
101
P.A. Now (θ)
101°
Sep first
12.0
Sep last
35.3
Sep. Now (ρ)
35.3"
Mag pri
11.42
Mag sec
12.80
delta mag (ΔM)
1.38
Spectral class
F4V (yellow-white)
Pri motion ra
+002
Sec motion ra
+014
Pri motion dec
-027
Sec motion dec
-006
Notes
U (Proper motion indicates non-physical)
rPM=0.893
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
101.2
Precise sep
35.326
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 AB 1998 3 102 35.2 11.42 12.80 F4V D 201542.64-184900.7
20157-1849 HJ 2940 AB 1999 4 102 35.2 11.42 12.80 F4V UD 201542.64-184900.7
20157-1849 HJ 2940 AB 2015 6 101 35.3 11.42 12.80 F4V U 201542.64-184900.7

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