18156+2321 SLE 148

 
 
18h 15m 39.18s +23 20' 50.7" P.A. 190 sep 20 mag 11.86,11.05
 
 
Coord 2000
18156+2321
Discov num
SLE 148
Comp
Coord arcsec 2000
18 15 39.18 +23 20 50.7
Date first
1894
Date last
2017
Obs
8
Pa first
191
Pa last
190
P.A. Now (θ)
190°
Sep first
19.9
Sep last
20.0
Sep. Now (ρ)
20"
Mag pri
11.86
Mag sec
11.05
delta mag (ΔM)
0.81
Spectral class
Pri motion ra
+006
Sec motion ra
+005
Pri motion dec
+010
Sec motion dec
+010
Notes
rPM=0.086 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
189.8
Precise sep
20.007
Constellation
Hercules
Tycho2
2092-01411-1
last precise pa
189.8
last precise sep
20.007
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18156+2321 SLE 148 1999 5 189 20.0 11.86 11.05 D 181539.18+232050.7
18156+2321 SLE 148 2001 6 189 20.0 11.86 11.05 D 181539.18+232050.7
18156+2321 SLE 148 2010 7 189 19.6 11.86 11.05 181539.18+232050.7
18156+2321 SLE 148 2017 8 190 20.0 11.86 11.05 181539.18+232050.7

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