'Light gathering power' diaporamas de présentation

Introduction to CCDs

Introduction to CCDs. Basic principles of CCD imaging. Original notes by S.Tulloch & G.Bonanno modified and integrated by GPS (Rev.103 Nov08). What is a CCD ?. Charge Coupled Devices (CCDs) were invented in the 1970s and originally found application as memory devices

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Light (Electromagnetic Spectrum) and Telescopes [week 2 and 3]

Light (Electromagnetic Spectrum) and Telescopes [week 2 and 3]. A Telescope is a tool used to gather light from objects in the universe. Our Objective. OBJECTIVES. Treat the telescopes as an instrument Learn telescope parameters What makes a telescope useful? Telescope operation

938 views • 93 slides

History of Astronomical Instruments

History of Astronomical Instruments. The early history: From the unaided eye to telescopes. The Human Eye. Anatomy and Detection Characteristics. Anatomy of the Human Eye. Visual Observations. Navigation Calendars Unusual Objects (comets etc.). Hawaiian Navigation:

932 views • 84 slides

Stargazing 101

894 views • 65 slides

Astronomy 04 The Solar System

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Optical systems

Optical systems. Hecht 5.7 Wednesday October 2, 2002. Field Stop. The aperture that controls the field of view by limiting the solid angle formed by chief rays. As seen from the centre of the entrance pupil (E n P), the field stop (or its image) subtends the smallest angle.

631 views • 29 slides

Warm Up 5/29/08

Warm Up 5/29/08. What does a prism do? a. separates sunlight into ultraviolet and infrared radiation b. separates visible light into several colors c. changes the wavelength of electromagnetic waves d. combines the colors of visible light into white light

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Warm Up 5/29/08

Warm Up 5/29/08. What does a prism do? a. separates sunlight into ultraviolet and infrared radiation b. separates visible light into several colors c. changes the wavelength of electromagnetic waves d. combines the colors of visible light into white light

156 views • 15 slides

Announcements

Announcements. Exam 1 is next time. Will cover everything up to and including today. Formula sheet has everything we have covered thus far. Homework: Chapter 6 # 44 & 45 plus Supplemental Problems. Solutions will be posted Monday afternoon. Telescope basics.

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Astronomical Telescopes II:

Magnitude Scale and Light Gathering Power. Astronomical Telescopes II:. Light Gathering Power. LGP ~ D 2 This comes from: LGP = Area = 4 ? R 2 R=D/2 R 2 = D 2 /4 LGP = 4 ? D 2 /4 = ? D 2 To compare the LGP of two telescopes: LGP 1 /LGP 2 = (D 1 /D 2 ) 2. Compared to human eye :

281 views • 10 slides

Astronomical Telescopes II:

Magnitude Scale and Light Gathering Power. Astronomical Telescopes II:. Light Gathering Power. LGP ~ D 2 This comes from: LGP = Area = 4 ? R 2 R=D/2 R 2 = D 2 /4 LGP = 4 ? D 2 /4 = ? D 2 To compare the LGP of two telescopes: LGP 1 /LGP 2 = (D 1 /D 2 ) 2. Compared to human eye :

200 views • 10 slides