ASTRONOMY PLEASE ANSWER THESE 22) What does the \"G stand for in NGC represent A
ID: 294920 • Letter: A
Question
ASTRONOMY PLEASE ANSWER THESE
22) What does the "G stand for in NGC represent A) Great B) Gemeral C) Galaxy Gravity 23) What is the universal longuoge used by doctors and scientiss A) Spanish B) Chinese C) French 0) Latin 24) Which of the following wavelengths does not fall within the color range of visible spectral classes? A) 490nm B) 1,260nm C650nmD) 549nm A) red B) orange C) yellow D) blue the spectrum of a supernova? 25) What color is most intense in the Angstrom range 26) Which of the following was not a parameter used to help analyze A) temperature B) absorption C) Fe D) uranium 27) Which of the following is most helpful in analyzing the chemical content of supernova? A) magmetosphere B) microscope C) micrometer D) spectrometer 28) Optical: not detectable except for a very few young examples of A) QSO's B) normal galaxies C) asteroids D) pulsars 29) Optical point source, moves with respect to stellar background Radio: short duration, periodic bursts Radio: not detectable: A) normal galaxies B) asteroids C) radio galaxy D) pulsar 30) What are photometers used to measure? A) photons B) sounds C) densities D) weights 31) If you know the absolute magnitude of a star, what observation is usually sufficient to provide a distance estimate for that star? A) Mass B) color C) age D) apparent magnitude 32) Which of the following is another name for a neutron star? A) Galaxy B) pulsar C) nebula D) planetExplanation / Answer
22)B.General:NGC stands for new general catalogue.
23)D. Latin
24)B.1260nm: visible range spectrum is roughly between 400 to 700nm
25)D. Blue
26)
27)D. Spectrometer is used to analyze spectra of different nuclei
28)
29)
30)A. Photons
31)B. Color
32)B. Pulsar