18217+5740 MLR 536

 
 
18h 21m 43.56s +57 40' 12.3" P.A. 193 sep 0.8 mag 10.30,10.76 Sp F8
 
 
Coord 2000
18217+5740
Discov num
MLR 536
Comp
Coord arcsec 2000
18 21 43.56 +57 40 12.3
Date first
1980
Date last
2010
Obs
7
Pa first
198
Pa last
193
P.A. Now (θ)
193°
Sep first
0.9
Sep last
0.8
Sep. Now (ρ)
0.8"
Mag pri
10.30
Mag sec
10.76
delta mag (ΔM)
0.46
Spectral class
F8 (yellow-white)
Pri motion ra
-016
Sec motion ra
-016
Pri motion dec
+032
Sec motion dec
+032
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
193.2
Precise sep
0.835
Constellation
Draco
SAO
30927
Tycho2
3912-00263-1
HD
238861
last precise pa
193.2
last precise sep
0.835
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18217+5740 MLR 536 1995 6 205 0.9 10.30 10.76 F8 182143.56+574012.3
18217+5740 MLR 536 2010 7 193 0.8 10.30 10.76 F8 182143.56+574012.3

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