18429-1829 ARA 488

 
 
18h 42m 48.98s -18 29' 01.2" P.A. 167 sep 20.3 mag 11.84,11.50
 
 
Coord 2000
18429-1829
Discov num
ARA 488
Comp
Coord arcsec 2000
18 42 48.98 -18 29 01.2
Date first
1916
Date last
2010
Obs
7
Pa first
170
Pa last
167
P.A. Now (θ)
167°
Sep first
10.3
Sep last
20.3
Sep. Now (ρ)
20.3"
Mag pri
11.84
Mag sec
11.50
delta mag (ΔM)
0.34
Spectral class
Pri motion ra
+004
Sec motion ra
+015
Pri motion dec
-001
Sec motion dec
-101
Notes
rPM=0.985
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
166.6
Precise sep
20.29
Constellation
Sagittarius
Tycho2
6284-01583-1
last precise pa
166.6
last precise sep
20.29
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18429-1829 ARA 488 1998 4 167 19.2 11.85 11.75 D 184248.98-182901.2
18429-1829 ARA 488 1999 5 167 19.3 11.85 11.75 D 184248.98-182901.2
18429-1829 ARA 488 2010 7 166 20.1 11.84 11.50 184248.98-182901.2

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