13447-2250 DON 617

 
 
13h 44m 41.82s -22 50' 21.7" P.A. 142 sep 3.8 mag 9.93,12.60 Sp G2/3V
 
 
Coord 2000
13447-2250
Discov num
DON 617
Comp
Coord arcsec 2000
13 44 41.82 -22 50 21.7
Date first
1928
Date last
2015
Obs
3
Pa first
140
Pa last
142
P.A. Now (θ)
142°
Sep first
3.8
Sep last
3.8
Sep. Now (ρ)
3.8"
Mag pri
9.93
Mag sec
12.60
delta mag (ΔM)
2.67
Spectral class
G2/3V (yellow)
Pri motion ra
+000
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
141.5
Precise sep
3.768
Constellation
Hydra
SAO
181920
Tycho2
6715-00190-1
Gaia DR2
07078953856
HD
119622
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13447-2250 DON 617 1940 2 139 3.8 9.93 12.60 G2/3V 134441.82-225021.7
13447-2250 DON 617 2015 3 142 3.8 9.93 12.60 G2/3V 134441.82-225021.7

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