16578+1317 HDS2399

 
 
16h 57m 46.09s +13 17' 29.2" P.A. 345 sep 0.3 mag 10.90,13.09 Sp M0 dist. 40.8 pc (133.09 l.y.)
 
 
Coord 2000
16578+1317
Discov num
HDS2399
Comp
Coord arcsec 2000
16 57 46.09 +13 17 29.2
Date first
1991
Date last
2015
Obs
5
Pa first
290
Pa last
345
P.A. Now (θ)
345°
Sep first
0.6
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
10.90
Mag sec
13.09
delta mag (ΔM)
2.19
Spectral class
M0 (red)
Pri motion ra
+047
Sec motion ra
Pri motion dec
+072
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
344.5
Precise sep
0.269
Constellation
Hercules
HIP
83010
Tycho2
0987-00811-1
GL
Gl 647
Distance
40.8
Distance ly
133.09
last precise pa
344.5
last precise sep
0.269
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16578+1317 HDS2399 1991 1 290 0.6 10.90 13.09 M0 165746.09+131729.2
16578+1317 HDS2399 2008 2 318 0.5 10.90 13.09 M0 D 165746.09+131729.2
16578+1317 HDS2399 2014 4 337 0.3 10.90 13.09 M0 165746.09+131729.2
16578+1317 HDS2399 2015 5 345 0.3 10.90 13.09 M0 165746.09+131729.2

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