Skywatcher Espirt 100ED
Altair Astro LRGB 3 x 300seconds UNGUIDED
QSI 690 CCD
And it does bear a striking resemblance to Spielbergâ€™s ET. Two bright stars, phi1 and phi2 (Ï†1 and Ï†2) Cassiopeiae, are ETâ€™s eyes. A group of some 40 stars northwest of the â€œeyesâ€ form ETâ€™s body. Passing through the body is a row of stars that extends outward to the sides, creating the alienâ€™s arms. Add a handful of stars to the base of the body, and ET has feet. Because phi1 is brighter than phi2, ET seems to be winking at us.
ET will greet the owner of even the most modest telescope. A standard 2.4-inch refractor can capture a few dozen cluster members, while an 8-inch reflector will snare one hundred. A magnification of just 50-75X comfortably encompasses the clusterâ€™s 20 arc-minute width.