16538+2110 STF2109

 
 
16h 53m 45.78s +21 10' 22.6" P.A. 313 sep 5.7 mag 7.52,10.30 Sp K0 dist. 188.68 pc (615.47 l.y.)
 
 
Coord 2000
16538+2110
Discov num
STF2109
Comp
Coord arcsec 2000
16 53 45.78 +21 10 22.6
Date first
1831
Date last
2012
Obs
32
Pa first
315
Pa last
313
P.A. Now (θ)
313°
Sep first
6.0
Sep last
5.7
Sep. Now (ρ)
5.7"
Mag pri
7.52
Mag sec
10.30
delta mag (ΔM)
2.78
Spectral class
K0 (yellow-orange)
Pri motion ra
-019
Sec motion ra
-019
Pri motion dec
+021
Sec motion dec
+021
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
313
Precise sep
5.65
Constellation
Hercules
SAO
84674
HIP
82654
Tycho2
1533-00631-1
HD
152629
BD
BD+21 2999
Distance
188.68
Distance ly
615.47
last precise pa
313
last precise sep
5.65
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16538+2110 STF2109 2004 30 313 5.9 7.52 10.30 K0 D 165345.78+211022.6
16538+2110 STF2109 2012 32 313 5.7 7.52 10.30 K0 D 165345.78+211022.6

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