16576-4447 DON 818

 
 
16h 57m 39.22s -44 47' 59.7" P.A. 136 sep 3.5 mag 10.09,12.50 Sp K
 
 
Coord 2000
16576-4447
Discov num
DON 818
Comp
Coord arcsec 2000
16 57 39.22 -44 47 59.7
Date first
1930
Date last
2000
Obs
3
Pa first
145
Pa last
136
P.A. Now (θ)
136°
Sep first
3.2
Sep last
3.5
Sep. Now (ρ)
3.5"
Mag pri
10.09
Mag sec
12.50
delta mag (ΔM)
2.41
Spectral class
K (yellow-orange)
Pri motion ra
-007
Sec motion ra
Pri motion dec
-017
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
135.7
Precise sep
3.47
Constellation
Scorpius
Tycho2
7880-03665-1
HD
329216
last precise pa
135.7
last precise sep
3.47
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16576-4447 DON 818 1947 2 144 3.3 10.09 12.50 K 165739.22-444759.7
16576-4447 DON 818 2000 3 136 3.5 10.09 12.50 K 165739.22-444759.7

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