20172+2415 HDS2893AB

 
 
20h 17m 13.11s +24 15' 06.9" P.A. 168 sep 0.3 mag 9.19,11.49 dist. 398.41 pc (1299.61 l.y.)
 
 
Coord 2000
20172+2415
Discov num
HDS2893
Comp
AB
Coord arcsec 2000
20 17 13.11 +24 15 06.9
Date first
1991
Date last
2009
Obs
3
Pa first
164
Pa last
168
P.A. Now (θ)
168°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
9.19
Mag sec
11.49
delta mag (ΔM)
2.3
Spectral class
Pri motion ra
-013
Sec motion ra
Pri motion dec
-016
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20172+2415 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20172+2415 HDS2893 AB 1991 2009 3 168 0.3 9.19 11.49 2.30 <===
Show 20172+2415 GRV 326 AC 1894 2015 13 262 34.8 9.19 10.22 1.03
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
168.4
Precise sep
0.31
Constellation
Vulpecula
SAO
88457
HIP
99998
Tycho2
2155-00725-1
Gaia DR2
40958762240
HD
193013
BD
BD+23 3956
Distance
398.41
Distance ly
1299.61
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20172+2415 HDS2893 AB 1997 2 172 0.2 9.19 11.49 201713.11+241506.9
20172+2415 HDS2893 AB 2009 3 168 0.3 9.19 11.49 201713.11+241506.9

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