18257+5701 TDT 857

 
 
18h 25m 41.52s +57 01' 21.3" P.A. 221 sep 0.6 mag 11.32,11.40
 
 
Coord 2000
18257+5701
Discov num
TDT 857
Comp
Coord arcsec 2000
18 25 41.52 +57 01 21.3
Date first
1991
Date last
1991
Obs
1
Pa first
221
Pa last
221
P.A. Now (θ)
221°
Sep first
0.6
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
11.32
Mag sec
11.40
delta mag (ΔM)
0.08
Spectral class
Pri motion ra
+005
Sec motion ra
+005
Pri motion dec
-014
Sec motion dec
-014
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
221.1
Precise sep
0.56
Constellation
Draco
Tycho2
3912-01127-1
last precise pa
221.1
last precise sep
0.56
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18257+5701 TDT 857 1991 1 221 0.6 11.32 11.40 182541.52+570121.3

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