20444-2339 HJ 2991AB

 
 
20h 44m 23.39s -23 38' 58.4" P.A. 9.00 sep 38.1 mag 9.64,10.34 Sp A5
 
 
Coord 2000
20444-2339
Discov num
HJ 2991
Comp
AB
Coord arcsec 2000
20 44 23.39 -23 38 58.4
Date first
1830
Date last
2015
Obs
15
Pa first
32
Pa last
9
P.A. Now (θ)
Sep first
30.0
Sep last
38.1
Sep. Now (ρ)
38.1"
Mag pri
9.64
Mag sec
10.34
delta mag (ΔM)
0.7
Spectral class
A5 (white)
Pri motion ra
+051
Sec motion ra
+009
Pri motion dec
-070
Sec motion dec
-013
Notes
L (Linear solution)
rPM=0.818
This double is not physical.
 
 
20444-2339 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 189627 20444-2339 HJ 2991 AB 1830 2015 15 9 38.1 9.64 10.34 0.70 <===
Show 189627 20444-2339 HJ 2991 BC 1830 2015 14 285 5.8 10.34 13.10 2.76
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
8.8
Precise sep
38.1
Constellation
Capricornus
SAO
189627
Tycho2
6921-00902-1
Gaia DR2
57774517888
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20444-2339 HJ 2991 AB 2006 12 10 38.0 9.64 10.34 A5 LD 204423.39-233858.4
20444-2339 HJ 2991 AB 2015 14 9 38.1 9.64 10.34 A5 L 204423.39-233858.4

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