20260409
20260408
20260331
Astr 210: Week 11 slide deck
Find the squares for each of these numbers: 1, 5, 20, and 0.1.
Find the square root for each of these numbers: 1, 5, 20, and 0.1. Round non-integer results to one decimal place.
A star has an apparent magnitude of +4 and a luminosity of 100,000 L sun. What is its distance, in light years?
Create three fictitious stars, with plausible numbering based on existing star catalogs, with a spectral type and luminosity class randomly selected from one of the following (supergiant (B0 to M5), giant (A5 to M5), main-sequence (B0 to M5), or white dwarf (B3 to K0)), a luminosity in the range between 1e-5 to 1e5 solar units (with the scientific notation coefficient being whole numbers 1, 2, or 5), a temperature between 2,000 K to 50,000 K (with the scientific notation coefficient being an integer or half-integer value) apparent magnitude between -2 and +11, distance between 1 and 10,000 light years. Report today's date and time. Cite the following statistics about this star: (a) Name. (b) Luminosity, solar units. (c) Temperature, in Kelvin. (d) Apparent magnitude. (e) Distance, in light years. Don't use scientific notation. Don't report the spectral type. Don't report the luminosity class. Don't report the size.
Subscribe to:
Comments (Atom)