20186+2833 HJ 1501AB

 
 
20h 18m 38.40s +28 31' 59.0" P.A. 355 sep 12.9 mag 10.18,11.10 Sp A2
 
 
Coord 2000
20186+2833
Discov num
HJ 1501
Comp
AB
Coord arcsec 2000
20 18 38.40 +28 31 59.0
Date first
1828
Date last
2015
Obs
10
Pa first
0
Pa last
355
P.A. Now (θ)
355°
Sep first
5.0
Sep last
12.9
Sep. Now (ρ)
12.9"
Mag pri
10.18
Mag sec
11.10
delta mag (ΔM)
0.92
Spectral class
A2 (white)
Pri motion ra
+002
Sec motion ra
-007
Pri motion dec
-008
Sec motion dec
-010
Notes
rPM=0.755
Nature of this double is uncertain.
 
 
20186+2833 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20186+2833 HJ 1501 AB 1828 2015 10 355 12.9 10.18 11.10 0.92 <===
Show 20186+2833 HJ 1501 AC 1893 2015 11 349 57.3 10.18 11.71 1.53
Show 20186+2833 HJ 1501 CD 1904 2015 9 12 20.2 11.71 13.70 1.99
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
354.7
Precise sep
12.943
Constellation
Vulpecula
Tycho2
2167-01256-1
Gaia DR2
30535525888
HD
334120
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20186+2833 HJ 1501 AB 1998 3 355 12.8 10.18 11.10 A2 D 201838.40+283159.0
20186+2833 HJ 1501 AB 2002 5 355 12.9 10.18 11.10 A2 D 201838.40+283159.0
20186+2833 HJ 1501 AB 2010 6 355 12.5 10.18 11.10 A2 201838.40+283159.0
20186+2833 HJ 1501 AB 2015 6 355 12.9 10.18 11.10 A2 201838.40+283159.0

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