What Objects To Focus On For School Astronomy?

IceDiver writes "I am a teacher in a small rural school. My Grade 9 students are doing a unit on astronomy this spring. I have access to a 4" telescope, and would like to give my students a chance to use it. We will probably only be able to attempt observations on a couple of nights because of weather and time restrictions. I am as new to telescope use as my students, so I have no idea what objects would look good through a 4" lens. What observations should I attempt to have my students make? In other words, how can I make best use of my limited equipment and time to give my students the best experience possible?"

Comments

Caution:

[drainbramage]

Do NOT look at Sun with remaining eye.

Here are some things you can look at!

[CyberBill]

Hi, I help run an astronomy group (San Diego Astronomy Association) and I think I can help you out - feel free to contact me directly if you have questions.

Right now I would recommend showing off:
The Pleiades (M45) - http://en.wikipedia.org/wiki/Pleiades_(star_cluster)
The Great Orion Nebula (M42) - http://en.wikipedia.org/wiki/Orion_Nebula
The Andromeda Galaxy (M31) - http://en.wikipedia.org/wiki/Andromeda_galaxy

You can also check out the planets - right now Mars is pretty close and bright, but it isn't much to look at through a 4" telescope. You can show off Saturn, but it doesn't rise until kind of late. You should be able to see the rings, but right now they are edge-on.

Depending on where you are located, you may also be able to check out some smaller galaxies and nebula. Also, depending on where you are located, get in contact with an astronomy group and see if you can visit a local amateur observatory. We have a site about an hour from down town San Diego where we have a 22" telescope available for public viewing once a month and we also have public events held almost weekly where we bring telescopes generally around 10" in size (I bring my 16" on clear nights).

Others have joked about using your telescope to point at the Sun - obviously don't do it. Even pointing the scope at the Sun will permanently destroy eyepieces and coatings on optics - and if you happen to look through it, say good bye to your vision. Permanently. However, if you can get yourself a solar filter to put over the telescope, you can safely observe the Sun - which is pretty interesting. You should be able to see sun spots and perhaps prominences with the right kind of filter.

Good luck, and clear skies! :)

Re:easy stuff

[dr_canak]

I totally disagree with this comment,

and +4 informative is way out of whack, even for the slashdot moderation. I live about 10 miles outside of Chicago, just north of the airport. The light pollution is awful. With an 80mm lens (just under 4 inches), I can easily make out the cloud bands of Jupiter, including the red spot. The moons of Jupiter are clearly visible, and are easily distinguishable from background stars (first and foremost, they don't twinkle). The rings of Saturn are clearly visible (even with small binoculars), and will look like a little UFO in the lens. Andromeda and the Pleides are visible to the naked eye as light smudges, but through a 4 inch lens are easily broken down into the major elements making up these DSO's. The whispy structure of the orion nebula is clearly discernible. Again, this is from extremely light polluted skies. In reasonably dark skies, a 4" scope is plenty for amateur observing.

The parent post is hardly informative.

just my .02,
jeff