20275+3145 ES  364

 
 
20h 27m 28.12s +31 44' 41.1" P.A. 279 sep 7.3 mag 9.21,13.00 Sp F8
 
 
Coord 2000
20275+3145
Discov num
ES  364
Comp
Coord arcsec 2000
20 27 28.12 +31 44 41.1
Date first
1901
Date last
2015
Obs
9
Pa first
285
Pa last
279
P.A. Now (θ)
279°
Sep first
7.3
Sep last
7.3
Sep. Now (ρ)
7.3"
Mag pri
9.21
Mag sec
13.00
delta mag (ΔM)
3.79
Spectral class
F8 (yellow-white)
Pri motion ra
-014
Sec motion ra
-016
Pri motion dec
-015
Sec motion dec
-019
Notes
rPM=0.18 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
279.4
Precise sep
7.29
Constellation
Cygnus
SAO
70049
Tycho2
2685-00374-1
Gaia DR2
69932718336
HD
332309
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20275+3145 ES 364 2000 4 280 7.3 9.21 13.00 F8 D 202728.12+314441.1
20275+3145 ES 364 2002 5 279 7.4 9.21 13.00 F8 D 202728.12+314441.1
20275+3145 ES 364 2015 6 279 7.3 9.21 13.00 F8 202728.12+314441.1

If you need more information about this double, apply for a data request form to the WDS.