20181+1736 HJ 2946

 
 
20h 18m 09.67s +17 32' 12.1" P.A. 237 sep 13.9 mag 10.49,12.08 Sp K0
 
 
Coord 2000
20181+1736
Discov num
HJ 2946
Comp
Coord arcsec 2000
20 18 09.67 +17 32 12.1
Date first
1831
Date last
2015
Obs
12
Pa first
228
Pa last
237
P.A. Now (θ)
237°
Sep first
12.0
Sep last
13.9
Sep. Now (ρ)
13.9"
Mag pri
10.49
Mag sec
12.08
delta mag (ΔM)
1.59
Spectral class
K0 (yellow-orange)
Pri motion ra
+003
Sec motion ra
+007
Pri motion dec
-012
Sec motion dec
+008
Notes
rPM=1.649
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
237.2
Precise sep
13.921
Constellation
Sagitta
Tycho2
1635-00852-1
Gaia DR2
79168681344
HD
351923
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20181+1736 HJ 2946 1998 5 236 14.1 10.49 12.08 D 201809.67+173212.1
20181+1736 HJ 2946 2001 7 237 14.1 10.49 12.08 D 201809.67+173212.1
20181+1736 HJ 2946 2010 8 237 13.5 10.49 12.08 K0 201809.67+173212.1
20181+1736 HJ 2946 2015 9 237 13.9 10.49 12.08 K0 201809.67+173212.1

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