16557+1544 HEI  70

 
 
16h 55m 44.19s +15 45' 16.8" P.A. 318 sep 1.2 mag 10.05,12.10
 
 
Coord 2000
16557+1544
Discov num
HEI  70
Comp
Coord arcsec 2000
16 55 44.19 +15 45 16.8
Date first
1978
Date last
2015
Obs
3
Pa first
323
Pa last
318
P.A. Now (θ)
318°
Sep first
1.2
Sep last
1.2
Sep. Now (ρ)
1.2"
Mag pri
10.05
Mag sec
12.10
delta mag (ΔM)
2.05
Spectral class
Pri motion ra
-001
Sec motion ra
Pri motion dec
+003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
318.1
Precise sep
1.23
Constellation
Hercules
Tycho2
1521-00791-1
last precise pa
318.1
last precise sep
1.23
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16557+1544 HEI 70 1995 2 321 1.2 10.05 12.10 165544.19+154516.8
16557+1544 HEI 70 2015 3 318 1.2 10.05 12.10 165544.19+154516.8

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