18177-1820 ARA 472

 
 
18h 17m 39.80s -18 19' 20.2" P.A. 183 sep 14.7 mag 12.10,11.55
 
 
Coord 2000
18177-1820
Discov num
ARA 472
Comp
Coord arcsec 2000
18 17 39.80 -18 19 20.2
Date first
1916
Date last
1999
Obs
5
Pa first
183
Pa last
183
P.A. Now (θ)
183°
Sep first
14.2
Sep last
14.7
Sep. Now (ρ)
14.7"
Mag pri
12.10
Mag sec
11.55
delta mag (ΔM)
0.55
Spectral class
Pri motion ra
+008
Sec motion ra
+002
Pri motion dec
-002
Sec motion dec
-002
Notes
rPM=0.728
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
182.5
Precise sep
14.744
Cdsa2 id
ARA 472
Constellation
Sagittarius
Tycho2
6269-02878-1
Ra deg
18.29438888888889
De deg
-18.322277777777778
last precise pa
182.5
last precise sep
14.744
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18177-1820 ARA 472 1999 3 187 15.7 11.55 11.80 D 181739.69-181934.9

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