18583-4418 B  2872

 
 
18h 58m 23.38s -44 18' 32.7" P.A. 302 sep 3.7 mag 12.34,12.78
 
 
Coord 2000
18583-4418
Discov num
B  2872
Comp
Coord arcsec 2000
18 58 23.38 -44 18 32.7
Date first
1930
Date last
1999
Obs
3
Pa first
303
Pa last
302
P.A. Now (θ)
302°
Sep first
4.0
Sep last
3.7
Sep. Now (ρ)
3.7"
Mag pri
12.34
Mag sec
12.78
delta mag (ΔM)
0.44
Spectral class
Pri motion ra
+028
Sec motion ra
-064
Pri motion dec
-043
Sec motion dec
-004
Notes
B (Blue magnitudes)
rPM=1.558
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
301.6
Precise sep
3.72
Constellation
Corona Austrina
Tycho2
7928-01716-1
last precise pa
301.6
last precise sep
3.72
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18583-4418 B 2872 1930 1 303 4.0 12.34 12.78 B 185818.51-441648.8
18583-4418 B 2872 1999 2 302 3.7 12.34 12.78 DB 185823.38-441832.7

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