145 Canis Majoris - Blue and gold pair

on Monday, November 12, 2012

145 Cma is known as the Winter Albireo, however enthusiasts from the southern hemisphere call them the Southern Albireo. This beautiful pair is well visible on urban skies even with small telescopes. The primary is yellowish-orange and the companion is a pale bluish white.  As increasing magnification the colours began to fade compare to the Albireo in Cygnus. This stars are not related and can be seen only as a pair because the perspective towards the Earth. 

To find 145 Cma and its companion you have to look for NGC 2362 Mg 3.8 or Tau CMa Mg 4.4. Once there go to the north in a straight line a bit more than one and a half degree.

The image was taken with a 6 inches f5 Orion Optics Uk and a QSI WS 583 riding in a SW NEQ6 from 120 km north from Buenos Aires City. Total exposure time 12 minutes through LRGB Baader filters


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