18015-2221 ARA1836

 
 
18h 01m 31.56s -22 21' 17.8" P.A. 21 sep 8.8 mag 11.40,12.40
 
 
Coord 2000
18015-2221
Discov num
ARA1836
Comp
Coord arcsec 2000
18 01 31.56 -22 21 17.8
Date first
1920
Date last
1999
Obs
7
Pa first
23
Pa last
21
P.A. Now (θ)
21°
Sep first
8.0
Sep last
8.8
Sep. Now (ρ)
8.8"
Mag pri
11.40
Mag sec
12.40
delta mag (ΔM)
1
Spectral class
Pri motion ra
+002
Sec motion ra
+005
Pri motion dec
-008
Sec motion dec
+004
Notes
rPM=1.5
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
20.7
Precise sep
8.774
Constellation
Sagittarius
Tycho2
6263-00114-1
last precise pa
19.6
last precise sep
8.4
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18015-2221 ARA1836 1998 5 21 8.8 11.40 12.40 D 180131.56-222117.8
18015-2221 ARA1836 1999 6 21 8.8 11.40 12.40 D 180131.56-222117.8

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