19226-4428 DUN 226 (Arkab prior)

 
 
19h 22m 38.29s -44 27' 32.1" P.A. 76 sep 28.4 mag 3.98,7.21 Sp B8V+F0V
 
 
Coord 2000
19226-4428
Discov num
DUN 226
Comp
Coord arcsec 2000
19 22 38.29 -44 27 32.1
Date first
1826
Date last
2010
Obs
31
Pa first
60
Pa last
76
P.A. Now (θ)
76°
Sep first
30.0
Sep last
28.4
Sep. Now (ρ)
28.4"
Mag pri
3.98
Mag sec
7.21
delta mag (ΔM)
3.23
Spectral class
B8V+F0V (blue-white/yellow-white)
Pri motion ra
+009
Sec motion ra
+011
Pri motion dec
-020
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
76.3
Precise sep
28.36
Common name
Arkab prior
Meaning
hamstring anterior
Other names
Arkab
Constellation
Sagittarius
SAO
229646
HD
181454
HR
7337
Bayer
Beta 1 Sagittarii
Bayer name
Bet1 Sgr
last precise pa
76.3
last precise sep
28.36
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19226-4428 DUN 226 2007 28 76 28.9 3.98 7.21 B8V F0V N D 192238.29-442732.1
19226-4428 DUN 226 2009 29 77 26.0 3.98 7.21 B8V F0V N D 192238.29-442732.1
19226-4428 DUN 226 2010 31 77 28.4 3.98 7.21 B8V+F0V N 192238.29-442732.1

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