17493-3036 RST1990

 
 
17h 49m 17.31s -30 35' 50.4" P.A. 244 sep 2.2 mag 6.80,12.50 Sp F2IV/V dist. 49.55 pc (161.63 l.y.)
 
 
Coord 2000
17493-3036
Discov num
RST1990
Comp
Coord arcsec 2000
17 49 17.31 -30 35 50.4
Date first
1934
Date last
1944
Obs
2
Pa first
241
Pa last
244
P.A. Now (θ)
244°
Sep first
2.0
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
6.80
Mag sec
12.50
delta mag (ΔM)
5.7
Spectral class
F2IV/V (yellow-white)
Pri motion ra
+062
Sec motion ra
Pri motion dec
-037
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
243.5
Precise sep
2.17
Constellation
Scorpius
SAO
209307
HIP
87223
Tycho2
7377-00199-1
HD
161852
CD
CD-3014748
CP
CP-30 4919
Distance
49.55
Distance ly
161.63
last precise pa
243.5
last precise sep
2.17
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17493-3036 RST1990 1944 2 244 2.2 6.80 12.50 F2IV/V 174917.31-303550.4

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