18093-2809 ALD  67

 
 
18h 09m 17.21s -28 08' 25.6" P.A. 17 sep 1.9 mag 11.50,11.70
 
 
Coord 2000
18093-2809
Discov num
ALD  67
Comp
Coord arcsec 2000
18 09 17.21 -28 08 25.6
Date first
1929
Date last
2015
Obs
2
Pa first
20
Pa last
17
P.A. Now (θ)
17°
Sep first
2.0
Sep last
1.9
Sep. Now (ρ)
1.9"
Mag pri
11.50
Mag sec
11.70
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
-015
Sec motion ra
Pri motion dec
-027
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
17
Precise sep
1.904
Cdsa2 id
ALD 67
Constellation
Sagittarius
Ra deg
18.154780555555554
De deg
-28.140444444444444
last precise pa
17
last precise sep
1.904
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18093-2809 ALD 67 1929 1 20 2.0 11.00 11.00 180920.00-280900.0
18093-2809 ALD 67 2015 2 17 1.9 11.50 11.70 180917.21-280825.6

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