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11-Nightobs1 - Name_ Section_ Date_ 11....

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Unformatted text preview: Name________________________ Section______________________ Date_________________________ 11. Introduction to Observational Astronomy: Night Observing #1 Objective: Continue to learn to use a telescope at night. Procedure: • Take all the equipment you will need outside onto the Green in front of Sharp Lab. This includes: o 6 inch Celestron Schmit ­Cassegrain reflector – Alt ­Az mount (See Figure 1) o Powertank o Case with eyepieces and filters o Diagonal o Make sure that the finders scope is attached. If not, ask your TA about attaching it. • Once outside, you will learn to align the telescope using the remote on the side of the telescope. Make sure that the telescope is plugged into the powertank and turned on and then Walk through the alignment. ALIGNMENT IS THE TOUGHEST PART OF AMATEUR ASTRONOMY. It might take more than one try to get it right. • Press ENTER on the remote to begin alignment. Follow instructions for SKYALIGN. • The Latitude / Longitude of Newark, DE is 39° 41' 1" N / 75° 45' 0" W • Enter the current Date and Time and continue. • A ligning the telescope This involves successively pointing the telescope at three bright objects using the arrow keys on the control pad. Do not move the telescope by hand! Any bright star will do, but select three objects that are far apart in the sky. Do not use the Moon. The screen should say Center Object 1. o Using the control pad, align the red dot of the star pointer with your first object. o Press E NTER . • The object should now be visible in the eyepiece. If you do not see the object in the eyepiece, slowly pan the sky with the control pad until it is visible. Use the control pad to center the object in the eyepiece. • I f the object is centered in the eyepiece but not centered in the star p ointer , use the steering knobs on the star pointer until it too is aligned. (See Figure below) • Press A LIGN . • The screen should say C enter Object 2 . Select a second object and repeat the above procedure. • The screen should say C enter Object 3 . Select a third object and repeat the above procedure. • After a few seconds, the screen should say M atch Confirmed . If so, press E NTER and proceed with your observations. If the screen says A lign Failed , follow the onscreen instructions to repeat the process • Observations: o Your TA will help you identify objects of interest. You should view 3 ­4 objects tonight. Begin with the Moon if possible. Move onto any planets that happen to be up. If the Orion Nebula is in the sky view this object. Otherwise, find an interesting nebula, or other object. • Once you have observed an object, make sure to draw it on your post lab report in as much detail as you can. If you view the moon, see if you can label any features. Remember that the telescope flips images left to right. Figure 1: Telescope parts. Figure 2: Tutorial on the NexStar remote. Figure 3: Labeled map of the moon. Name________________________ Section______________________ Date_________________________ Record Sheet: Night Observing #1 Objective: Learn how to use a telescope to take and process astronomical images. Draw what you see when viewing various objects. Make this as ACCURATE as possible, especially when viewing the Moon. (2pts each) Object#1: Eyepiece used: Any observations: Object#2: Eyepiece used: Any observations: Object#3: Eyepiece used: Any observations: Object#4: Eyepiece used: Any observations: Object#5: Eyepiece used: Any observations: 1. Explain how the telescope alignment to map the sky. (3pt) uses 2. Rank the planets you saw from brightest to dimmest. Describe each planet’s observation in detail. (3pt) 3. If you observed the moon, which features can you identify from the figure in the manual? List here and label on your drawing above. (2pt) ...
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