16556-5458 BRT2580

 
 
16h 55m 42.93s -54 56' 52.5" P.A. 105 sep 5.7 mag 11.24,12.15
 
 
Coord 2000
16556-5458
Discov num
BRT2580
Comp
Coord arcsec 2000
16 55 42.93 -54 56 52.5
Date first
1928
Date last
2000
Obs
6
Pa first
104
Pa last
105
P.A. Now (θ)
105°
Sep first
4.2
Sep last
5.7
Sep. Now (ρ)
5.7"
Mag pri
11.24
Mag sec
12.15
delta mag (ΔM)
0.91
Spectral class
Pri motion ra
-013
Sec motion ra
+066
Pri motion dec
-007
Sec motion dec
-031
Notes
B (Blue magnitudes)
rPM=1.132
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
105.4
Precise sep
5.68
Constellation
Ara
Tycho2
8730-00284-1
last precise pa
105.4
last precise sep
5.68
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16556-5458 BRT2580 1928 1 104 4.2 11.24 12.15 B 165542.93-545652.5
16556-5458 BRT2580 2000 2 105 5.7 11.24 12.15 B 165542.93-545652.5

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