October 28, 2008

A Dash Through Perseus: NGC 1342, Struve 425

Tonight I observed NGC 1342 in Perseus with the 100mm f/6. I counted 22 stars in the cluster. Many of the brighter stars form a long, rough arc along one side of the cluster, and others are scattered around inside the arc. It's worth the trip halfway from Algol to Atik.
From NGC 1342, I moved to Atik itself and then northwest 40 Persei. 40 is a double star. At 60x, I could see the bright primary (magnitude 5) and the much dimmer secondary (mag. 9.5) off to the upper left. The secondary is so delicately dim. It looks so fragile there, floating near the brighter star.
Next to 40 Persei, in the same view at 60x, is Struve 425. At 60x, it looked like one star, but at 120x, the two components split to reveal two equally bright stars (mag. 7.6) just 2" apart. They looked like a dimmer Gamma Virginis. With clear seeing, the 100mm f/6 put black space between the two.
I also observed M31, M32, and M110. I could see all three in one 17.5x view, though M110 only with averted vision.

No comments: