18254-1631 HU   64AB

 
 
18h 25m 22.92s -16 30' 31.9" P.A. 12 sep 3.7 mag 9.80,10.80 Sp K0III
 
 
Coord 2000
18254-1631
Discov num
HU   64
Comp
AB
Coord arcsec 2000
18 25 22.92 -16 30 31.9
Date first
1899
Date last
2000
Obs
12
Pa first
12
Pa last
12
P.A. Now (θ)
12°
Sep first
4.0
Sep last
3.7
Sep. Now (ρ)
3.7"
Mag pri
9.80
Mag sec
10.80
delta mag (ΔM)
1
Spectral class
K0III (yellow-orange)
Pri motion ra
+015
Sec motion ra
+036
Pri motion dec
-011
Sec motion dec
+040
Notes
N (See Notes)
rPM=1.025
This double is not physical.
 
 
18254-1631 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18254-1631 HU 64 AB 1899 2000 12 12 3.7 9.80 10.80 1.00 <===
Show 18254-1631 HU 64 AC 1905 2000 5 21 15.6 9.80 12.30 2.50
Show 18254-1631 HU 64 AD 1910 2000 3 350 24.4 9.80 12.80 3.00
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
12.4
Precise sep
3.67
Constellation
Sagittarius
Tycho2
6266-02751-1
HD
169457
last precise pa
12.4
last precise sep
3.67
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18254-1631 HU 64 AB 2000 11 12 3.7 9.80 10.80 K0III N D 182522.92-163031.9

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