18508-2210 BU 1300 (30 Sgr)

 
 
18h 50m 50.50s -22 09' 43.6" P.A. 254 sep 18 mag 6.61,13.00 Sp A7III dist. 70.57 pc (230.2 l.y.)
 
 
Coord 2000
18508-2210
Discov num
BU 1300
Comp
Coord arcsec 2000
18 50 50.50 -22 09 43.6
Date first
1901
Date last
2015
Obs
5
Pa first
247
Pa last
254
P.A. Now (θ)
254°
Sep first
21.5
Sep last
18.0
Sep. Now (ρ)
18"
Mag pri
6.61
Mag sec
13.00
delta mag (ΔM)
6.39
Spectral class
A7III (white)
Pri motion ra
-018
Sec motion ra
+058
Pri motion dec
-035
Sec motion dec
-108
Notes
N (See Notes)
rPM=0.86
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
253.7
Precise sep
17.995
Name
30 Sgr
Constellation
Sagittarius
SAO
187342
HIP
92480
Tycho2
6293-00236-1
Gaia DR2
03470257920
HD
174309
HR
7088
GC
25835
BD
BD-22 4881
CD
CD-2213340
Flamsteed
30 Sagittarii
Flamsteed name
30 Sgr
Distance
70.57
Distance ly
230.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18508-2210 BU 1300 1998 3 252 18.4 6.61 13.00 A7III N D 185050.50-220943.6
18508-2210 BU 1300 1999 4 251 18.6 6.61 13.00 A7III N D 185050.50-220943.6
18508-2210 BU 1300 2015 5 254 18.0 6.61 13.00 A7III N 185050.50-220943.6

If you need more information about this double, apply for a data request form to the WDS.