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August 6, 2010 August 7, 2010

Posted by orionrising in Observing.
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The Dense Starfields between Deneb and Sadr in Cygnus

Object: Stars

Site: Front Yard

Seeing: 5 (Best I’ve seen in a while)

Transparency: Excellent

Type: Deep-Sky

Constellation: Cygnus

Magnification: 10x

FOV: 4.8 Degrees

Observing Time: 10:15pm – 10:35 pm

Notes: The rich star fields in the neck of Cygnus the Swan, between Deneb and Sadr.  At the beginning of my observing session I was looking for the “Keystone” in Hercules; didn’t find it, I’ll try again another night.  The Keystone is too large to fit inside a FOV of 4.8 Degrees, so I will not see it all in one field.  I then turned to the Summer Triangle and the respective constellations of the three brightest stars: Altair, in Aquila, Vega, in Lyra, and Deneb, in Cygnus.  The first star I observed was Vega in Lyra.  I tried to make out Lyra’s distinctive kite shape, as seen in the star charts, but I didn’t see it and was brought back to only seeing the epsilon lyrae star group, Vega, and delta-1 LYR in a distinctive triangle formation– see my “July 2nd, 2010” Posting for details.  I later found out that <again> Lyra the constellation is too large to fit inside my FOV, which was surprising since it looked relatively diminutive in the charts.  As a final destination for tonight, I marveled at the magnificent starfield in Cygnus, pictured above…I’m guessing a little over 100 stars were visible, which was quite a treat.  Seeing and Transparency were quite awesome too tonight.

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