Virtual Astronomy Lab Report
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- Pages: 2
- Word count: 300
- Category: Astronomy Lab Report
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1a. Distance in cm from the beginning to ending point:
13.5 cm
1b. Number Right Tries: 5 Number Wrong Tries:
cm x (30 miles/1 cm) x (1 gallon/15 miles) x (2 dollars/1 gallon) = 4 dollars
2a. Length of Cepheid cycle in centimeters from graph:
12.5 cm
3a. Number of years corresponding to 1 cm:
1 cm = 20 years
3b. Number of centimeters between sunspot peaks A and B:
0.7 cm x (20 years/1 cm) = 14 years
4a. Scientific to decimal notation conversion:
3.51E8 = 351000000
3.51E-8 = 0.0000000351
2.3E1 = 2.3
4.4E0 = 1
5a. Table of planetary diameters computed from angular diameters
(Saturn case was given as an example)
| planet | α (radians) | r (106 ) | S (106 ) |
| Jupiter | 2.429e-4 | 588.5 | 0.1429 |
| Saturn | 9.740e-5 | 1195.5 | 0.1164 |
| Neptune | 1.990e-5 | 2581.9 | 0.0514 |
| Uranus | 1.160e-5 | 4305.9 | 0.0689 |
| Pluto | 5.000e-7 | 4284.7 | 2.142e-3 |
Lab 2 – Properties of Light and its Interaction with Matter
- Planck and Wien Law Exercise:
| Case | T ( Kelvin ) | λmax (Å) | EM Region |
| 1 | 5900 | 4915 | Visible |
| 2 | 6550 | 4227 | Visible |
| 3 | 5550 | 5225 | Visible |
| 4 | 7250 | 4000 | Visible |
| 5 | 7750 | 3742 | Ultraviolet |
- Â Blackbody peak wavelengths (numbers in parentheses were given to students):
| Star | T ( Kelvin ) | λmax (Å) | EM Region |
| Procyon | 6510 | 4451 | Visible |
| Sun | 5780 | 5015 | Visible |
| Capella | 5200 | 5577 | Visible |
| Aldebaran | 3780 | 7666 | Infrared |
| Formalhaut | 8500 | 3412 | Ultraviolet |
- Atom and ion structure:
| Case | Number of protons | Number of neutrons | # of electrons in the 1st shell | # of electrons in the 2nd shell | # of electrons in the 3rd shell |
| H | 1 | 0 | 2 | 0 | 0 |
| C | 6 | 6 | 2 | 4 | 0 |
| Mg | 12 | 11 | 2 | 8 | 1 |
