15523+3119 HJ 2795

 
 
15h 52m 15.21s +31 20' 32.0" P.A. 29 sep 12.4 mag 11.70,12.20
 
 
Coord 2000
15523+3119
Discov num
HJ 2795
Comp
Coord arcsec 2000
15 52 15.21 +31 20 32.0
Date first
1830
Date last
2010
Obs
9
Pa first
21
Pa last
29
P.A. Now (θ)
29°
Sep first
10.0
Sep last
12.4
Sep. Now (ρ)
12.4"
Mag pri
11.70
Mag sec
12.20
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
-005
Sec motion ra
-005
Pri motion dec
+020
Sec motion dec
+018
Notes
R (Red magnitudes)
rPM=0.097 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
28.9
Precise sep
12.4
Constellation
Corona Borealis
Tycho2
2572-00941-1
last precise pa
28.9
last precise sep
12.4
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15523+3119 HJ 2795 2006 7 29 12.4 11.00 11.00 D 155215.21+312032.0
15523+3119 HJ 2795 2010 9 29 12.1 11.70 12.20 R 155215.21+312032.0

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