19448-2029 DON 965AB

 
 
19h 44m 45.77s -20 26' 05.2" P.A. 238 sep 2.5 mag 10.47,13.90 Sp A1/2II
 
 
Coord 2000
19448-2029
Discov num
DON 965
Comp
AB
Coord arcsec 2000
19 44 45.77 -20 26 05.2
Date first
1929
Date last
1946
Obs
3
Pa first
239
Pa last
238
P.A. Now (θ)
238°
Sep first
2.4
Sep last
2.5
Sep. Now (ρ)
2.5"
Mag pri
10.47
Mag sec
13.90
delta mag (ΔM)
3.43
Spectral class
A1/2II (white)
Pri motion ra
+010
Sec motion ra
Pri motion dec
-004
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
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
238.4
Precise sep
2.48
Constellation
Sagittarius
Tycho2
6320-02476-1
last precise pa
238.4
last precise sep
2.48
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19448-2029 DON 965 AB 1946 3 238 2.5 10.47 13.90 A1/2II 194445.77-202605.2

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