20183+2539 HJ 1499AC

 
 
20h 18m 17.06s +25 38' 53.7" P.A. 355 sep 21.5 mag 6.96,10.87 Sp B2V dist. 729.93 pc (2381.03 l.y.)
 
 
Coord 2000
20183+2539
Discov num
HJ 1499
Comp
AC
Coord arcsec 2000
20 18 17.06 +25 38 53.7
Date first
1828
Date last
2015
Obs
22
Pa first
358
Pa last
355
P.A. Now (θ)
355°
Sep first
15.0
Sep last
21.5
Sep. Now (ρ)
21.5"
Mag pri
6.96
Mag sec
10.87
delta mag (ΔM)
3.91
Spectral class
B2V (blue-white)
Pri motion ra
+003
Sec motion ra
+003
Pri motion dec
+005
Sec motion dec
+003
Notes
N (See Notes)
rPM=0.343
Nature of this double is uncertain.
 
 
20183+2539 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20183+2539 BU 985 AB 1880 2009 8 153 5.9 6.99 12.80 5.81
Show 20183+2539 HJ 1499 AC 1828 2015 22 355 21.5 6.96 10.87 3.91 <===
Show 20183+2539 WAL 131 AE 1898 2015 22 151 122.8 6.96 8.13 1.17
Show 20183+2539 BU 985 CD 1893 2015 13 67 8.6 10.87 13.60 2.73
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
355.3
Precise sep
21.529
Constellation
Vulpecula
SAO
88490
HIP
100088
Tycho2
2159-00108-1
Gaia DR2
05164694144
HD
193220
BD
BD+25 4189
Distance
729.93
Distance ly
2381.03
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20183+2539 HJ 1499 AC 2006 13 356 21.5 6.96 10.87 B2V D 201817.06+253853.7
20183+2539 HJ 1499 AC 2009 15 357 21.5 6.96 10.87 B2V N D 201817.06+253853.7
20183+2539 HJ 1499 AC 2012 18 356 21.7 6.96 10.87 B2V N D 201817.06+253853.7
20183+2539 HJ 1499 AC 2013 19 355 21.2 6.96 10.87 B2V N 201817.06+253853.7
20183+2539 HJ 1499 AC 2015 22 355 21.5 6.96 10.87 B2V N 201817.06+253853.7

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