Charles L Hakes
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Hi all,
In preparation for the event Saturday, I thought it might be useful for a little coordination on at least the initial objects to put in the telescopes. When doing the telescope labs at FLC, I have the groups look for a variety of objects, (six different types), more or less in the order from bright to dim, to make sure they see a wide variety of things. Then again, never pass up a convenient target of opportunity. My object type ordering and some suggestions are as follows. I am also working on a Word document "cheat sheet" that has some useful info on some of these objects.
1. Planets. Easy to see at dusk. Saturn.
2. Double stars. Many can be seen even when it isn’t quite dark. (Mizar, Albireo, Gamma Andromeda, Epsilon Lyrae, Polaris)
3. Open clusters. Individual stars can be resolved, and again good when not totally dark. Stars in these all formed at the same time and many are some of the youngest stars visible. Found along the Milky Way. (M6,7,11, double cluster, and 8,16,17 have nebulosity, so repeat later, etc.)
4. Globular clusters. These are found in a spherical halo surrounding the Milky Way and include the oldest stars. Bigger scopes resolve the individual stars; otherwise they look like little fuzz balls. (M13,4,22,15,92)
5. Nebulae. Emission or planetary. Needs to be really dark, so save these for last. (M57,27,8,16,17)
6. Galaxies. Again, needs to be dark and since many don’t show much structure, save these for last or for the die hard fans. (M31,33,101,74)
Comments and object suggestions welcome!
regards,
Charlie