19417+3855 SEI 660

 
 
19h 41m 39.06s +38 54' 49.2" P.A. 253 sep 11.8 mag 9.77,12.60 Sp A0
 
 
Coord 2000
19417+3855
Discov num
SEI 660
Comp
Coord arcsec 2000
19 41 39.06 +38 54 49.2
Date first
1896
Date last
2010
Obs
6
Pa first
250
Pa last
253
P.A. Now (θ)
253°
Sep first
11.8
Sep last
11.8
Sep. Now (ρ)
11.8"
Mag pri
9.77
Mag sec
12.60
delta mag (ΔM)
2.83
Spectral class
A0 (white)
Pri motion ra
-001
Sec motion ra
-003
Pri motion dec
-003
Sec motion dec
+001
Notes
rPM=1.414
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
252.7
Precise sep
11.76
Cdsa2 id
SEI 660
Constellation
Cygnus
Ra deg
19.694183333333335
De deg
38.913666666666664
last precise pa
252.7
last precise sep
11.76
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19417+3855 SEI 660 1998 4 253 11.8 9.77 12.60 A0 D 194139.06+385449.2
19417+3855 SEI 660 2002 5 253 11.8 9.77 12.60 A0 D 194139.06+385449.2
19417+3855 SEI 660 2010 6 253 11.3 9.77 12.60 A0 194139.06+385449.2

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