20250+1016 HJ 1509

 
 
20h 24m 57.06s +10 16' 02.6" P.A. 180.00 sep 19.2 mag 9.83,9.97 Sp F8+F8
 
 
Coord 2000
20250+1016
Discov num
HJ 1509
Comp
Coord arcsec 2000
20 24 57.06 +10 16 02.6
Date first
1828
Date last
2019
Obs
25
Pa first
182
Pa last
180
P.A. Now (θ)
180°
Sep first
20.0
Sep last
19.2
Sep. Now (ρ)
19.2"
Mag pri
9.83
Mag sec
9.97
delta mag (ΔM)
0.14
Spectral class
F8+F8 (yellow-white/yellow-white)
Pri motion ra
+009
Sec motion ra
+010
Pri motion dec
-001
Sec motion dec
+000
Notes
V (Proper motion indicates physical)
Visually invisible, K-band or other infrared star rPM=0.141 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
180.4
Precise sep
19.157
Constellation
Delphinus
SAO
106079
Tycho2
1078-00531-1
Gaia DR2
90864160256
HD
194383
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20250+1016 HJ 1509 2004 16 180 18.8 9.83 9.97 F8 F8 D 202457.06+101602.6
20250+1016 HJ 1509 2010 19 180 19.0 9.83 9.97 F8+F8 202457.06+101602.6
20250+1016 HJ 1509 2016 20 181 19.0 9.83 9.97 F8+F8 202457.06+101602.6
20250+1016 HJ 1509 2019 25 180 19.2 9.83 9.97 F8+F8 V 202457.06+101602.6

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