16304+4044 HDS2331

 
 
16h 30m 22.61s +40 44' 11.6" P.A. 279 sep 0.6 mag 8.01,12.02 Sp G0 dist. 87.03 pc (283.89 l.y.)
 
 
Coord 2000
16304+4044
Discov num
HDS2331
Comp
Coord arcsec 2000
16 30 22.61 +40 44 11.6
Date first
1991
Date last
2011
Obs
11
Pa first
264
Pa last
279
P.A. Now (θ)
279°
Sep first
0.5
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
8.01
Mag sec
12.02
delta mag (ΔM)
4.01
Spectral class
G0 (yellow)
Pri motion ra
-083
Sec motion ra
Pri motion dec
+039
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
278.8
Precise sep
0.552
Cdsa2 id
HDS 2331
Constellation
Hercules
SAO
46127
HIP
80827
Tycho2
3066-00970-1
HD
149025
BD
BD+41 2715
Ra deg
16.506280555555556
De deg
40.736555555555555
Distance
87.03
Distance ly
283.89
last precise pa
278.8
last precise sep
0.552
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16304+4044 HDS2331 2006 2 277 0.6 8.01 12.02 G0 D 163022.61+404411.6
16304+4044 HDS2331 2007 4 276 0.6 8.01 12.02 G0 D 163022.61+404411.6
16304+4044 HDS2331 2010 5 278 0.6 8.01 12.02 G0 D 163022.61+404411.6
16304+4044 HDS2331 2011 11 279 0.6 8.01 12.02 G0 163022.61+404411.6

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