Lab 11 - Physics & Astronomy

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Magnitude• Stellar Brightness Apparent Magnitude (m v ) - Brightness from Earth Absolute Magnitude (M v ) - Brightness from 10 pcAbsolute magnitude depends only on a star’s luminosity (the star’s wattage)MagnitudeDifferenceBrightness Ratio(Brightness Difference)1 (2.512) 1 2.52 (2.512) 2 6.33 (2.512) 3 15.94 (2.512) 4 405 (2.512) 5 1006 (2.512) 6 251
BSpectral Classification
Page 1 and 2: Astronomy 105 LaboratoryLAB 11
Page 3 and 4: Ast 105 Lab ExamTuesday, April 15 a
Page 5 and 6: THE MOON
Page 7: N.P.Phase: 1 st quarterRise Time:Se
Page 10 and 11: EastMarch 7 @ 8:00 p.mNorthZenith32
Page 12 and 13: Sky Familiarization• A Few More T
Page 14 and 15: Scientific Experiments / Observatio
Page 16 and 17: Scientific Notation3.502 x 10 6deci
Page 18 and 19: Units• Provides numerical context
Page 21 and 22: Verifying Kepler’s 1stMercury’s
Page 23 and 24: P24πG2Kepler’s 3 rd )P 2 =ka 3Fi
Page 26: Formation of Emission andDark Line
Page 30 and 31: The Doppler EffectVelocity = 012345
Page 32 and 33: THE HR DIAGRAM
Page 36 and 37: Absolute MagnitudeHR Diagram-10-50T
Page 38 and 39: Spectral LuminosityStar m vM vType
Page 40 and 41: Stellar Parallax• Motion of Earth
Page 42 and 43: Stars in a Cluster•Common Propert
Page 44 and 45: Cluster A: Distance 50 lyCluster B:
Page 46 and 47: • Interstellar Dust Reddens Light
Page 48 and 49: HUBBLE’S LAB
Page 50 and 51: Finding a Galaxy’s DistanceHubble
Page 52 and 53: Hubble DiagramHubble Diagramv = H o
Page 55 and 56: Laboratory SpectrumLaboratory - No
Page 57 and 58: Important: Do not write or mark on
Page 59 and 60: VAΔλA 2λ0VcSaturnBVΔλB 2λ0VcV
Page 61 and 62: Finding the Rotation Period of Satu
Page 64 and 65: 1 parsec (pc) = 3.26 lyC4.2Apparent
Page 66 and 67: Verifying Kepler’s 1stP 2L 3L 4P

Lab 11 - Physics & Astronomy

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