Wednesday, September 20, 2023

Ross 248

Ross 248 (HH Andromedae) is a red dwarf star that is the eighth closest star system at about 10.3 light years.  At magnitude 12.3 it requires a dark sky and a good telescope to spot visually.  It is located about midway between the W-shaped asterism of Cassiopeia and the Great Square of Pegasus.  This image was obtained with an Olympus 75mm f1.8 lens and a Kenko Softon-A diffusion filter. The bright star just above the circled position of Ross 248 is Kappa Andromedae.

Olympus 75mm f1.8, 60 sec, ISO 1600. 5-deg square

In the image above the direction of the celestial pole (North) is approximately to the left.  A closer look is shown below without the diffusion filter and with N to the top. The bright star near the middle is Kappa Andromedae and the star near the bottom right corner is Iota Andromedae.

Rokinon 135mm f/2, 60 sec, ISO1600.  2-deg square.

 

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