19579-0904 HDO 155AC

 
 
19h 57m 53.70s -09 03' 30.3" P.A. 119 sep 115.1 mag 7.77,8.70 Sp K2 dist. 247.52 pc (807.41 l.y.)
 
 
Coord 2000
19579-0904
Discov num
HDO 155
Comp
AC
Coord arcsec 2000
19 57 53.70 -09 03 30.3
Date first
1868
Date last
2015
Obs
20
Pa first
113
Pa last
119
P.A. Now (θ)
119°
Sep first
108.6
Sep last
115.1
Sep. Now (ρ)
115.1"
Mag pri
7.77
Mag sec
8.70
delta mag (ΔM)
0.93
Spectral class
K2 (yellow-orange)
Pri motion ra
-004
Sec motion ra
+002
Pri motion dec
-014
Sec motion dec
+025
Notes
rPM=1.573
This double is not physical.
 
 
19579-0904 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19579-0904 BU 1475 AB 1906 2015 17 113 10.4 7.77 9.47 1.70
Show 19579-0904 HDO 155 AC 1868 2015 20 119 115.1 7.77 8.70 0.93 <===
Show 19579-0904 BU 1475 CD 1906 2015 9 163 4.9 8.70 11.10 2.40
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
119.3
Precise sep
115.052
Constellation
Aquila
HIP
98246
Tycho2
5738-01042-1
Gaia DR2
64040123264
HD
188938
BD
BD-09 5303
Distance
247.52
Distance ly
807.41
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19579-0904 HDO 155 AC 2003 17 120 115.5 7.77 8.70 D 195753.70-090330.3
19579-0904 HDO 155 AC 2012 19 119 114.6 7.77 8.70 D 195753.70-090330.3
19579-0904 HDO 155 AC 2015 20 119 115.1 7.77 8.70 K2 195753.70-090330.3

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