19458+4033 STT 385

 
 
19h 45m 48.77s +40 33' 18.9" P.A. 51 sep 1.2 mag 7.77,9.58 Sp B7IV
 
 
Coord 2000
19458+4033
Discov num
STT 385
Comp
Coord arcsec 2000
19 45 48.77 +40 33 18.9
Date first
1843
Date last
2016
Obs
33
Pa first
50
Pa last
51
P.A. Now (θ)
51°
Sep first
1.1
Sep last
1.2
Sep. Now (ρ)
1.2"
Mag pri
7.77
Mag sec
9.58
delta mag (ΔM)
1.81
Spectral class
B7IV (blue-white)
Pri motion ra
+000
Sec motion ra
+000
Pri motion dec
-003
Sec motion dec
-003
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
50.5
Precise sep
1.228
Cdsa2 id
STT 385
Constellation
Cygnus
Tycho2
3140-01634-1
HD
186978
Ra deg
19.763547222222222
De deg
40.555249999999994
last precise pa
50.5
last precise sep
1.228
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19458+4033 STT 385 1995 27 51 1.2 7.77 9.58 B7IV D 194548.77+403318.9
19458+4033 STT 385 2010 30 50 1.2 7.77 9.58 B7IV D 194548.77+403318.9
19458+4033 STT 385 2012 32 51 1.2 7.77 9.58 B7IV 194548.77+403318.9
19458+4033 STT 385 2016 33 51 1.2 7.77 9.58 B7IV 194548.77+403318.9

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