19448-2029 HJ 2890AD

 
 
19h 44m 45.77s -20 26' 05.2" P.A. 280 sep 30.7 mag 10.47,10.43 Sp A1/2II
 
 
Coord 2000
19448-2029
Discov num
HJ 2890
Comp
AD
Coord arcsec 2000
19 44 45.77 -20 26 05.2
Date first
1830
Date last
2016
Obs
10
Pa first
281
Pa last
280
P.A. Now (θ)
280°
Sep first
14.0
Sep last
30.7
Sep. Now (ρ)
30.7"
Mag pri
10.47
Mag sec
10.43
delta mag (ΔM)
0.04
Spectral class
A1/2II (white)
Pri motion ra
+013
Sec motion ra
-001
Pri motion dec
+016
Sec motion dec
-007
Notes
rPM=1.306
This double is not physical.
 
 
19448-2029 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19448-2029 DON 965 AB 1929 1946 3 238 2.5 10.47 13.90 3.43
Show 19448-2029 DON 965 AC 1919 2016 7 208 4.8 10.47 11.50 1.03
Show 19448-2029 HJ 2890 AD 1830 2016 10 280 30.7 10.47 10.43 0.04 <===
Show 19448-2029 HJ 2890 AE 1830 1999 6 348 29.9 10.47 12.88 2.41
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
280.2
Precise sep
30.687
Constellation
Sagittarius
Tycho2
6320-02476-1
last precise pa
280.2
last precise sep
30.687
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19448-2029 HJ 2890 AD 1998 7 281 30.4 10.47 10.43 A1/2II D 194445.77-202605.2
19448-2029 HJ 2890 AD 1999 8 280 30.5 10.47 10.43 A1/2II D 194445.77-202605.2
19448-2029 HJ 2890 AD 2016 10 280 30.7 10.47 10.43 A1/2II 194445.77-202605.2

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