17445-1303 HO  421

 
 
17h 44m 28.75s -13 02' 45.8" P.A. 336 sep 5.5 mag 8.69,12.70 Sp A0V
 
 
Coord 2000
17445-1303
Discov num
HO  421
Comp
Coord arcsec 2000
17 44 28.75 -13 02 45.8
Date first
1892
Date last
2010
Obs
8
Pa first
340
Pa last
336
P.A. Now (θ)
336°
Sep first
5.3
Sep last
5.5
Sep. Now (ρ)
5.5"
Mag pri
8.69
Mag sec
12.70
delta mag (ΔM)
4.01
Spectral class
A0V (white)
Pri motion ra
-006
Sec motion ra
Pri motion dec
-041
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
336.1
Precise sep
5.45
Constellation
Serpens
SAO
160792
Tycho2
5668-00298-1
HD
161153
last precise pa
336.1
last precise sep
5.45
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17445-1303 HO 421 1998 6 339 5.5 8.69 12.70 A0V D 174428.75-130245.8
17445-1303 HO 421 2000 7 338 5.5 8.69 12.70 A0V D 174428.75-130245.8
17445-1303 HO 421 2010 8 337 4.9 8.69 12.70 A0V 174428.75-130245.8

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