19299+4931 BU  143

 
 
19h 29m 55.29s +49 30' 31.4" P.A. 192 sep 2.2 mag 8.38,9.48 Sp B9
 
 
Coord 2000
19299+4931
Discov num
BU  143
Comp
Coord arcsec 2000
19 29 55.29 +49 30 31.4
Date first
1873
Date last
2016
Obs
30
Pa first
200
Pa last
192
P.A. Now (θ)
192°
Sep first
2.0
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
8.38
Mag sec
9.48
delta mag (ΔM)
1.1
Spectral class
B9 (blue-white)
Pri motion ra
+007
Sec motion ra
+007
Pri motion dec
+017
Sec motion dec
+017
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
192.3
Precise sep
2.215
Constellation
Cygnus
Tycho2
3551-01887-1
last precise pa
192.3
last precise sep
2.215
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19299+4931 BU 143 1998 26 191 2.1 8.38 9.48 B9 D 192955.29+493031.4
19299+4931 BU 143 2006 27 192 2.2 8.38 9.48 B9 D 192955.29+493031.4
19299+4931 BU 143 2009 29 191 2.2 8.38 9.48 B9 D 192955.29+493031.4
19299+4931 BU 143 2011 30 192 2.2 8.38 9.48 B9 192955.29+493031.4
19299+4931 BU 143 2016 30 192 2.2 8.38 9.48 B9 192955.29+493031.4

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