20244+2923 HO  457AB

 
 
20h 24m 21.08s +29 22' 55.3" P.A. 61 sep 2 mag 9.08,9.18 Sp A0
 
 
Coord 2000
20244+2923
Discov num
HO  457
Comp
AB
Coord arcsec 2000
20 24 21.08 +29 22 55.3
Date first
1889
Date last
2018
Obs
50
Pa first
80
Pa last
61
P.A. Now (θ)
61°
Sep first
1.5
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
9.08
Mag sec
9.18
delta mag (ΔM)
0.1
Spectral class
A0 (white)
Pri motion ra
+007
Sec motion ra
Pri motion dec
+003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20244+2923 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20244+2923 HO 457 AB 1889 2018 50 61 2.0 9.08 9.18 0.10 <===
Show 20244+2923 HO 457 AC 1893 2002 5 268 28.0 9.08 14.00 4.92
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
60.9
Precise sep
2
Constellation
Vulpecula
Tycho2
2168-00980-1
Gaia DR2
04986507776
HD
194380
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20244+2923 HO 457 AB 2005 49 62 2.0 9.08 9.18 A0 202421.08+292255.3
20244+2923 HO 457 AB 2006 50 60 2.0 9.08 9.18 A0 202421.08+292255.3
20244+2923 HO 457 AB 2008 53 60 2.0 9.08 9.18 A0 202421.08+292255.3
20244+2923 HO 457 AB 2011 54 61 2.1 9.08 9.18 A0 202421.08+292255.3
20244+2923 HO 457 AB 2016 48 61 2.0 9.08 9.18 A0 202421.08+292255.3
20244+2923 HO 457 AB 2018 50 61 2.0 9.08 9.18 A0 202421.08+292255.3

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