'1 parsec' presentation slideshows

5A-2 Astrophysics Surveying The Stars

5A-2 Astrophysics Surveying The Stars. Astrophysics booklet pages 28 to 53. March 8 th 2011. AQA A2 Specification. Astronomical distances. 100. 270 to 460 X 3. 36 000 X 120. 380 000 X 11. 150 000 000 X 400. 4 500 000 000 X 30. 40 x 10 12 X 9000

980 views • 67 slides

P7 - Observing the Universe Subtopic 1 Telescopes

P7 - Observing the Universe Subtopic 1 Telescopes. Convex / Converging Lenses bring light to a Focus. Power (dioptre) = 1 / Focal Length. More powerful lenses have more curved surfaces. Simple telescopes have 2 converging lenses. The most powerful one being the eyepiece lens.

787 views • 66 slides

Lecture 3

636 views • 63 slides

AST 309 part 2: Extraterrestrial Life

AST 309 part 2: Extraterrestrial Life. Terrestrial Planet (and Life) Finder. The Drake Equation:. N = N * f pl n hab f L f C f T L/T. Stars? Planets? Habitable Origin Complex Intelligence, Lifetime

505 views • 36 slides

AST 309 part 2: Extraterrestrial Life

AST 309 part 2: Extraterrestrial Life. Terrestrial Planet (and Life) Finder. The Drake Equation:. N = N * f pl n hab f L f C f T L/T. Stars? Planets? Habitable Origin Complex Intelligence, Lifetime

383 views • 36 slides

What we now know

280 views • 17 slides

Properties of Stars

Properties of Stars. Learning goals:. Explain what is meant by the parallax of a star, how we measure it and use it to find the distance to a star. Define brightness (see text), apparent magnitude, absolute magnitude.

306 views • 17 slides