17588+2155 HJ 2816

 
 
17h 58m 50.32s +21 54' 01.6" P.A. 140 sep 9.2 mag 11.10,12.60
 
 
Coord 2000
17588+2155
Discov num
HJ 2816
Comp
Coord arcsec 2000
17 58 50.32 +21 54 01.6
Date first
1830
Date last
2001
Obs
5
Pa first
138
Pa last
140
P.A. Now (θ)
140°
Sep first
5.0
Sep last
9.2
Sep. Now (ρ)
9.2"
Mag pri
11.10
Mag sec
12.60
delta mag (ΔM)
1.5
Spectral class
Pri motion ra
-003
Sec motion ra
+001
Pri motion dec
-008
Sec motion dec
-004
Notes
rPM=0.662
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
140
Precise sep
9.238
Constellation
Hercules
Tycho2
1565-03180-1
HD
341476
last precise pa
140
last precise sep
9.238
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17588+2155 HJ 2816 2000 4 140 9.2 11.12 12.60 D 175850.32+215401.6
17588+2155 HJ 2816 2001 5 140 9.2 11.12 12.60 D 175850.32+215401.6
17588+2155 HJ 2816 2010 6 140 8.7 11.10 12.60 175850.32+215401.6

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