Spectra lab

Spectra lab - AST101: Our Corner of the Universe Lab 9:...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: AST101: Our Corner of the Universe Lab 9: Spectra Lab 1 Introduction Objectives In this lab youll use a high quality spectrometer, made by Project STAR, to examine the spectra of a variety of light sources. The main goals are to practice accurately observing and recording the appearance of a spectrum, and to think about the different types of spectra and the characteristics of the objects that create them. Materials A Project STAR spectrometer and various spectral tubes. Using the Spectrometer Eye Hole Source C a l i b r a t e d S c a l e Figure 1: The STAR Spectrometer. Note the locations of the eye hole, the calibrated scale that you look at through the eye hole and the position of the source with respect to the spectrometer. This is explained in detail below. Hold the spectrometer so that you can look through the grating in the narrow end. You should be able to see two rows of calibration marks and numbers. Pay attention to the lower row, which gives the wavelength (in nanometers, or nm) of the light in the spectra above it. To observe a spectrum, keep holding the spectrometer up to your eye, and turn your whole body until the slit at the right-hand side of the front is pointed at the source of light you want to examine. (This is the most counter-intuitive part of the whole procedure. Most people are tempted to just aim the middle of the spectrometer at the light source. Aim the right side instead.) When you have the spectrometer aimed properly, a spectrum of the light source should appear above the...
View Full Document

This note was uploaded on 01/11/2012 for the course AST 101 taught by Professor Rosenzweig during the Fall '08 term at Syracuse.

Page1 / 5

Spectra lab - AST101: Our Corner of the Universe Lab 9:...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online