20270+4539 HJ 1518

 
 
20h 26m 57.68s +45 38' 20.3" P.A. 86 sep 15.3 mag 10.85,11.10
 
 
Coord 2000
20270+4539
Discov num
HJ 1518
Comp
Coord arcsec 2000
20 26 57.68 +45 38 20.3
Date first
1828
Date last
2015
Obs
14
Pa first
87
Pa last
86
P.A. Now (θ)
86°
Sep first
10.0
Sep last
15.3
Sep. Now (ρ)
15.3"
Mag pri
10.85
Mag sec
11.10
delta mag (ΔM)
0.25
Spectral class
Pri motion ra
-001
Sec motion ra
-002
Pri motion dec
-011
Sec motion dec
-010
Notes
rPM=0.128 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
86.4
Precise sep
15.297
Constellation
Cygnus
SAO
49642
Tycho2
3573-00001-1
Gaia DR2
03815468416
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20270+4539 HJ 1518 2003 6 87 15.3 10.85 11.10 D 202657.68+453820.3
20270+4539 HJ 1518 2010 9 86 15.2 10.85 11.10 202657.68+453820.3
20270+4539 HJ 1518 2015 10 86 15.3 10.85 11.10 202657.68+453820.3

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