19490+3443 SEI 686

 
 
19h 48m 54.98s +34 43' 29.3" P.A. 221 sep 20.5 mag 11.09,12.73
 
 
Coord 2000
19490+3443
Discov num
SEI 686
Comp
Coord arcsec 2000
19 48 54.98 +34 43 29.3
Date first
1894
Date last
2008
Obs
8
Pa first
224
Pa last
221
P.A. Now (θ)
221°
Sep first
22.6
Sep last
20.5
Sep. Now (ρ)
20.5"
Mag pri
11.09
Mag sec
12.73
delta mag (ΔM)
1.64
Spectral class
Pri motion ra
-012
Sec motion ra
-003
Pri motion dec
-005
Sec motion dec
-002
Notes
rPM=0.73
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
220.6
Precise sep
20.45
Constellation
Cygnus
Tycho2
2677-00081-1
last precise pa
220.6
last precise sep
20.45
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19490+3443 SEI 686 1998 6 221 21.3 11.09 12.73 D 194854.98+344329.3
19490+3443 SEI 686 2008 7 221 20.5 11.09 12.73 D 194854.98+344329.3

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