WORKSHEET for OBJECT X PART II: IDENTIFYING OBJECT X (Rev 10/31/14)

Name______Lab Night ______

WORKSHEET FOR OBJECT X PART II: IDENTIFYING OBJECT X (Rev 10/31/14)

Step 5 Extended Source (yes/no)? Put answer in table on page 2 of worksheet next to Your Results.

Step 7 List wavelengths in order from shortest wavelength to longest. (1 pt per wavelength, 1 pt per element)

Wavelength Element______

Step 7 Emission Spectrum (yes/no)? Put answer in table on page 2 of worksheet next to Your Results.

Step 8 Large Redshift (yes/no)? Put answer in table on page 2 of worksheet next to Your Results.

Step 9 Large Peak on Left Wavelength ______Chemical ______

Step 10 H and K Line Chemical ______

Step 10 Strong (large dip) H and K Absorption Lines (yes/no)? Put answer in table on page 2 next to Your Results.

Radio Telescope Step 9: Strong lines in Radio Spectrum (yes/no)? Put answer in table on page 2 next to Your Results.

(2 pts each for each question or blank above.) Use the table from modified page 9 of student manual found in instructions to fill in most of this table. Answer with Yes or No only. If the page 9 table says radio signals not detectable answer No in table below. If nothing about absorption in page 9 table entry for an object put No in absorption line column. (2 pts each table entry)

Object Extended Source? Emission Spectra? Large Redshift? Strong Abs Line? Strong Radio?

Asteroid

Distant Galaxy

Normal Star

Planetary Nebula

Pulsar

QSO ------Your Results ------

NOW IDENTIFY OBJECT X

Find the type of object in the table that has the same answers to these 5 questions as Your Object X. There is only one type of object that will match all five of your answers if you do this correctly. If you do not find a complete match or find two matches you have a mistake in your answers or an error in filling out the table.

WHICH TYPE OF OBJECT IS YOURS (12 pts)? ______

You must have a match according to the instructions above. You will not get credit for guessing or copying if you do not have a match.