17444+4027 ES 9004

 
 
17h 44m 22.05s +40 26' 51.1" P.A. 246 sep 13.2 mag 8.10,12.70 Sp K5 dist. 294.99 pc (962.26 l.y.)
 
 
Coord 2000
17444+4027
Discov num
ES 9004
Comp
Coord arcsec 2000
17 44 22.05 +40 26 51.1
Date first
1916
Date last
2012
Obs
4
Pa first
240
Pa last
246
P.A. Now (θ)
246°
Sep first
13.1
Sep last
13.2
Sep. Now (ρ)
13.2"
Mag pri
8.10
Mag sec
12.70
delta mag (ΔM)
4.6
Spectral class
K5 (yellow-orange)
Pri motion ra
+004
Sec motion ra
-014
Pri motion dec
-049
Sec motion dec
-039
Notes
N (See Notes)
rPM=0.419
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
246.3
Precise sep
13.2
Constellation
Hercules
SAO
46920
HIP
86817
Tycho2
3092-02238-1
HD
161549
BD
BD+40 3205
Distance
294.99
Distance ly
962.26
last precise pa
246.3
last precise sep
13.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17444+4027 ES 9004 2007 2 246 13.4 7.90 12.70 K5 N D 174422.05+402651.1
17444+4027 ES 9004 2012 4 246 13.2 7.90 12.70 K5 N D 174422.05+402651.1

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