19476+6403 ES 1917

 
 
19h 47m 37.24s +64 03' 06.4" P.A. 338 sep 8.2 mag 8.40,12.50 Sp K0
 
 
Coord 2000
19476+6403
Discov num
ES 1917
Comp
Coord arcsec 2000
19 47 37.24 +64 03 06.4
Date first
1921
Date last
2015
Obs
3
Pa first
344
Pa last
338
P.A. Now (θ)
338°
Sep first
7.7
Sep last
8.2
Sep. Now (ρ)
8.2"
Mag pri
8.40
Mag sec
12.50
delta mag (ΔM)
4.1
Spectral class
K0 (yellow-orange)
Pri motion ra
-003
Sec motion ra
Pri motion dec
-005
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
338.1
Precise sep
8.183
Constellation
Draco
SAO
18534
Tycho2
4239-00220-1
Gaia DR2
91804946176
HD
187765
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19476+6403 ES 1917 1921 1 344 7.7 8.40 12.50 K0 D 194737.24+640306.4
19476+6403 ES 1917 2011 2 338 8.0 8.40 12.50 K0 D 194737.24+640306.4
19476+6403 ES 1917 2015 3 338 8.2 8.40 12.50 K0 194737.24+640306.4

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