16401+2901 BU   42

 
 
16h 40m 05.82s +29 00' 41.0" P.A. 40 sep 7.2 mag 10.19,10.66 Sp G0
 
 
Coord 2000
16401+2901
Discov num
BU   42
Comp
Coord arcsec 2000
16 40 05.82 +29 00 41.0
Date first
1872
Date last
2012
Obs
27
Pa first
35
Pa last
40
P.A. Now (θ)
40°
Sep first
4.0
Sep last
7.2
Sep. Now (ρ)
7.2"
Mag pri
10.19
Mag sec
10.66
delta mag (ΔM)
0.47
Spectral class
G0 (yellow)
Pri motion ra
+007
Sec motion ra
+004
Pri motion dec
+008
Sec motion dec
+005
Notes
rPM=0.399
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
39.8
Precise sep
7.2
Constellation
Hercules
Tycho2
2057-01335-1
last precise pa
39.8
last precise sep
7.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16401+2901 BU 42 2005 25 40 7.4 10.19 10.66 G0 D 164005.82+290041.0
16401+2901 BU 42 2012 27 40 7.2 10.19 10.66 G0 D 164005.82+290041.0

If you need more information about this double, apply for a data request form to the WDS.