NGC 3245 Right Ascension = 10:27.3, Declination = +28:30 (2000.0)

• Start by measuring the pixel positions of the calcium absorption lines. To do this, click on the deepest part of each line. Enter the x values into your data table.
• Next, locate the Hα emission line and click at its highest peak. Record that x value in your data table.
• Finally, compare the red shifts, Z, numbers that you get for the 3 lines. Are they comparable? (For example: 0.0032 and 0.0045 are comparable; but, 0.0451 and 0.0023 are not. Check your measurements with your instructor.)