20173+6658 LDS2450

 
 
20h 17m 20.91s +66 57' 21.7" P.A. 227 sep 13.2 mag 16.60,17.20
 
 
Coord 2000
20173+6658
Discov num
LDS2450
Comp
Coord arcsec 2000
20 17 20.91 +66 57 21.7
Date first
1953
Date last
2015
Obs
4
Pa first
224
Pa last
227
P.A. Now (θ)
227°
Sep first
13.0
Sep last
13.2
Sep. Now (ρ)
13.2"
Mag pri
16.60
Mag sec
17.20
delta mag (ΔM)
0.6
Spectral class
Pri motion ra
-103
Sec motion ra
Pri motion dec
+056
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
227
Precise sep
13.212
Constellation
Draco
Gaia DR2
45162297984
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20173+6658 LDS2450 1999 2 227 13.2 16.60 17.20 D 201720.91+665721.7
20173+6658 LDS2450 2010 3 227 13.4 16.60 17.20 201720.91+665721.7
20173+6658 LDS2450 2015 4 227 13.2 16.60 17.20 201720.91+665721.7

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