21087+1717 HEI 184

 
 
21h 08m 37.95s +17 17' 20.8" P.A. 62 sep 3 mag 12.47,12.80
 
 
Coord 2000
21087+1717
Discov num
HEI 184
Comp
Coord arcsec 2000
21 08 37.95 +17 17 20.8
Date first
1980
Date last
2001
Obs
3
Pa first
66
Pa last
62
P.A. Now (θ)
62°
Sep first
2.5
Sep last
3.0
Sep. Now (ρ)
3"
Mag pri
12.47
Mag sec
12.80
delta mag (ΔM)
0.33
Spectral class
Pri motion ra
-001
Sec motion ra
Pri motion dec
-008
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
62
Precise sep
2.97
Constellation
Delphinus
Tycho2
1653-00959-1
last precise pa
62
last precise sep
2.9
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21087+1717 HEI 184 1996 2 63 2.5 12.47 12.80 210837.95+171720.8
21087+1717 HEI 184 2001 3 62 3.0 12.47 12.80 210837.95+171720.8

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