Subject: ETX-70AT Encouragement Sent: Saturday, November 10, 2001 12:40:29 From: firstname.lastname@example.org (Thomas Henry) Most of my recent postings have concerned things that go wrong with the ETX-70AT. It strikes me that newcomers might want to hear some of the things that go right. To encourage you a bit, here are the objects I've observed over the past week. Notice that I observe from the middle of a city of 40,000, in a backyard with a limited opening (I'm penned in by buildings on all four sides). If I can do it, so can you! Solar System: Mars, Jupiter, Saturn, Uranus, Vesta, Comet Linear WM1 Messier: 27 (Dumbell Nebula), 57 (Ring Nebula), 71, 56, 29, 39, 52, 103, 31 (Andromeda Galaxy), 32, 110, 2, 15, 1, 33, 13, 92, 38, 36, 37, 34, 42 (Great Orion Nebula), 43, 45 (Pleiades) NGC: Double Cluster, 663 Doubles: EPS LYR (the Double-Double), IOT TRI, GAM ARI, Trapezium Some of these were extremely faint, of course (like M33). But many put on a great show (like the Dumbell, Ring, Great Orion). In all cases, however, I was really able to enjoy the sky show and improve my seeing ability. My favorite projects so far have been plotting (sketching) the paths of Comet Linear WM1 and Vesta. Vesta is already in the Autostar, but if you'd like to try the comet (which does have a coma or tail already), here are elements that you can enter yourself: Name: Linear WM1 Epoch of El.: 22-Jan-2002 Perihelion Dist.: +0.555366 Eccentricity: +1.000281 Arg. of Per.: +276.7703 Lon. Asc. Node: +237.8964 Inclination: +072.5514 Absolute Mag.: +07.50 My work with doubles has been very satisfying. I was able to split all four components in the Double-Double one night, at 116X (a 6mm ocular plus a 2X barlow), but not on the other nights. That seems to be the limit of my scope. I'm starting to store the coordinates of a number of doubles in my Autostar; amazingly, it's missing some of the more interesting ones. Well, I hope this gives you an idea of what you can do with a little 70mm refractor! Despite all this, I'm still not happy with the chromatic aberration on mine (it's totally useless during the day, on planets and the moon) and will be returning it to Meade under warranty. If I can overcome that problem, then I'll feel I've got a real winner! Best wishes, Thomas Henry
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