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
Constellation
Hercules
SAO
46127
HIP
80827
Tycho2
3066-00970-1
HD
149025
BD
BD+41 2715
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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