19577+3509 SEI 747

 
 
19h 57m 42.44s +35 08' 42.5" P.A. 174 sep 19.6 mag 13.66,14.23
 
 
Coord 2000
19577+3509
Discov num
SEI 747
Comp
Coord arcsec 2000
19 57 42.44 +35 08 42.5
Date first
1894
Date last
2015
Obs
5
Pa first
169
Pa last
174
P.A. Now (θ)
174°
Sep first
18.8
Sep last
19.6
Sep. Now (ρ)
19.6"
Mag pri
13.66
Mag sec
14.23
delta mag (ΔM)
0.57
Spectral class
Pri motion ra
-001
Sec motion ra
-004
Pri motion dec
-003
Sec motion dec
-004
Notes
rPM=0.559
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
173.8
Precise sep
19.608
Constellation
Cygnus
Gaia DR2
25127904640
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19577+3509 SEI 747 1998 2 174 19.6 13.40 13.92 D 195742.44+350842.5
19577+3509 SEI 747 2002 3 174 19.6 13.40 13.92 D 195742.44+350842.5
19577+3509 SEI 747 2010 4 174 19.4 13.66 14.23 195742.44+350842.5
19577+3509 SEI 747 2015 5 174 19.6 13.66 14.23 195742.44+350842.5

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