15257+2638 STF1941

 
 
15h 25m 42.81s +26 37' 40.5" P.A. 212 sep 1.4 mag 9.65,9.77 Sp F5 dist. 168.63 pc (550.07 l.y.)
 
 
Coord 2000
15257+2638
Discov num
STF1941
Comp
Coord arcsec 2000
15 25 42.81 +26 37 40.5
Date first
1832
Date last
2014
Obs
63
Pa first
233
Pa last
212
P.A. Now (θ)
212°
Sep first
1.6
Sep last
1.4
Sep. Now (ρ)
1.4"
Mag pri
9.65
Mag sec
9.77
delta mag (ΔM)
0.12
Spectral class
F5 (yellow-white)
Pri motion ra
+018
Sec motion ra
+018
Pri motion dec
-007
Sec motion dec
-007
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
211.8
Precise sep
1.35
Constellation
Corona Borealis
SAO
83814
HIP
75519
Tycho2
2028-01389-1
HD
137529
BD
BD+27 2484
Distance
168.63
Distance ly
550.07
last precise pa
211.8
last precise sep
1.35
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15257+2638 STF1941 2005 61 213 1.4 9.65 9.77 F5 D 152542.81+263740.5
15257+2638 STF1941 2009 63 214 1.5 9.65 9.77 F5 D 152542.81+263740.5
15257+2638 STF1941 2010 64 213 1.4 9.65 9.77 F5 D 152542.81+263740.5
15257+2638 STF1941 2013 62 211 1.4 9.65 9.77 F5 152542.81+263740.5
15257+2638 STF1941 2014 63 212 1.4 9.65 9.77 F5 152542.81+263740.5

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