16579-4556 HJ 4899

 
 
16h 57m 55.91s -45 56' 09.5" P.A. 273 sep 2.2 mag 9.77,9.98 Sp B5/6IV
 
 
Coord 2000
16579-4556
Discov num
HJ 4899
Comp
Coord arcsec 2000
16 57 55.91 -45 56 09.5
Date first
1834
Date last
1991
Obs
8
Pa first
270
Pa last
273
P.A. Now (θ)
273°
Sep first
1.0
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
9.77
Mag sec
9.98
delta mag (ΔM)
0.21
Spectral class
B5/6IV (blue-white)
Pri motion ra
+005
Sec motion ra
+005
Pri motion dec
-002
Sec motion dec
-002
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
272.5
Precise sep
2.15
Constellation
Ara
SAO
227498
Tycho2
8327-00955-1
HD
152822
last precise pa
272.5
last precise sep
2.15
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16579-4556 HJ 4899 1991 8 273 2.2 9.77 9.98 B5/6IV 165755.91-455609.5

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