39 Boo
Binary Star
aka HR 5538, HD 131041, SAO 45231, PPM 54359, HIP 72524, BD +49 02326,  GC 19972, Struve 1890, ADS 9406, CCDM 14497+4843, TYC 03477-1328 1
RA: 14h49m41.3s, Dec: +48°43'15" (2000) in Bootes
Magnitude: 5.68+6.72
Distance: 230 +/- 14.0 ly
AB: In 1991 PA 45° Sep 2.78"

Minimum requirements to detect: any telescope under urban skies


This is a nearly identical pair of stars separated by 2.8".  Estimates of the magnitudes of these stars vary.  The brighter star is somewhere between 5.8 and 6.2 magnitude while  the secondary star is around 6.7.  To my eye they are nearly identical in brightness, which favors the latter estimate for the brighter component.  Both are spectral type F5, main sequence stars.  I noted that both are yellow-orange in color, with the fainter slightly more orange.  It is not yet clear if these stars form a physical pair. 


 

The view in a 6-inch at 270x.  North is down and east is to the right.
 

Millennium Star Atlas Vol II Chart 585
Sky Atlas 2000 Chart 7
Uranometria 2000 Vol I Chart 78
Uranometria 2nd Ed. Chart 36
Herald-Bobroff Astroatlas B-07 C-10

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