18090-3617 RST3155Aa,Ab

 
 
18h 09m 01.96s -36 17' 05.2" P.A. 11 sep 0.2 mag 9.15,9.60 Sp G2V dist. 88.34 pc (288.17 l.y.)
 
 
Coord 2000
18090-3617
Discov num
RST3155
Comp
Aa,Ab
Coord arcsec 2000
18 09 01.96 -36 17 05.2
Date first
1935
Date last
1991
Obs
9
Pa first
21
Pa last
11
P.A. Now (θ)
11°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
9.15
Mag sec
9.60
delta mag (ΔM)
0.45
Spectral class
G2V (yellow)
Pri motion ra
-015
Sec motion ra
Pri motion dec
-011
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18090-3617 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 209765 18090-3617 RST3155 Aa,Ab 1935 1991 9 11 0.2 9.15 9.60 0.45 <===
Show 209765 18090-3617 SHY 738 AB 1991 1998 4 254 999.9 8.56 9.01 0.45
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
11
Precise sep
0.196
Constellation
Sagittarius
SAO
209765
HIP
88920
Tycho2
7404-05122-1
HD
165728
CD
CD-3612259
CP
CP-36 8022
Distance
88.34
Distance ly
288.17
last precise pa
11
last precise sep
0.196
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18090-3617 RST3155 Aa,Ab 1991 9 11 0.2 9.15 9.60 G2V 180901.96-361705.2

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