19156+1831 BLL  37

 
 
19h 15m 33.36s +18 30' 58.9" P.A. 165 sep 138.5 mag 6.67,12.44 Sp M2III
 
 
Coord 2000
19156+1831
Discov num
BLL  37
Comp
Coord arcsec 2000
19 15 33.36 +18 30 58.9
Date first
1879
Date last
2010
Obs
7
Pa first
165
Pa last
165
P.A. Now (θ)
165°
Sep first
136.4
Sep last
138.5
Sep. Now (ρ)
138.5"
Mag pri
6.67
Mag sec
12.44
delta mag (ΔM)
5.77
Spectral class
M2III (red)
Pri motion ra
-011
Sec motion ra
+000
Pri motion dec
+010
Sec motion dec
-009
Notes
rPM=1.477
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
164.8
Precise sep
138.46
Constellation
Sagitta
Tycho2
1603-01605-1
HD
180377
last precise pa
164.8
last precise sep
138.46
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19156+1831 BLL 37 1997 5 165 138.8 6.67 12.17 M2III D 191533.36+183058.9
19156+1831 BLL 37 2001 6 165 139.4 6.67 12.17 M2III D 191533.36+183058.9
19156+1831 BLL 37 2010 7 165 138.5 6.67 12.44 M2III 191533.36+183058.9

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