20129+2913 HJ 1492A,BC

 
 
20h 12m 55.23s +29 12' 31.8" P.A. 54.00 sep 18.7 mag 10.28,10.54 Sp A2
 
 
Coord 2000
20129+2913
Discov num
HJ 1492
Comp
A,BC
Coord arcsec 2000
20 12 55.23 +29 12 31.8
Date first
1828
Date last
2018
Obs
21
Pa first
59
Pa last
54
P.A. Now (θ)
54°
Sep first
15.0
Sep last
18.7
Sep. Now (ρ)
18.7"
Mag pri
10.28
Mag sec
10.54
delta mag (ΔM)
0.26
Spectral class
A2 (white)
Pri motion ra
+005
Sec motion ra
+005
Pri motion dec
-005
Sec motion dec
-003
Notes
rPM=0.283 (< 0.3, Physical double)
This double is physical.
 
 
20129+2913 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 88359 20129+2913 HJ 1492 A,BC 1828 2018 21 54 18.7 10.28 10.54 0.26 <===
Show 88359 20129+2913 A 1203 BC 1905 2007 5 355 0.4 11.00 11.80 0.80
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
54.1
Precise sep
18.74
Constellation
Vulpecula
SAO
88359
Tycho2
2166-00428-1
Gaia DR2
22397217920
HD
333850
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20129+2913 HJ 1492 A,BC 2005 15 54 18.3 10.28 10.54 A2 D 201255.23+291231.8
20129+2913 HJ 1492 A,BC 2018 17 54 18.7 10.28 10.54 A2 201255.23+291231.8

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