an absolute ? al magnitude of is were located at the center of our galaxy, what
ID: 292057 • Letter: A
Question
an absolute ? al magnitude of is were located at the center of our galaxy, what uld its apparet magnitude bey (Hints Use the magnitude distance formula and the knowledge that a factor of 100 in intensity represents a magnitude difference of 5 and 2.5 in intensity one m be about 10 kpc.) Pick the closest answer from the numbers below with other factors mentioned if relevant. 0 +15:1t wil appear to be a bright star in the sky O o; It will appear to be one of the brightest stars in the sky O -15; It will appear to be a typicall bright star in the sky O It will probably not be bright or even visible due to dust absorption in the plane of our galaxy Submit Answer 2 question attempts remaining Back Autosaved at 10 51 AM Next o l 1052Explanation / Answer
All stars appears at a particular level of brightness in the sky is called apparent magnitude. The real level of brightness is called absolute magnitude.
Formula for Magnitude distance, mv -Mv=-5+ 5log d.
mv = apparent magnitude Mv = absolute magnitude d= distance, measrured in Parsecs.
Absolute magnitude= -15 and d=10000parsec.
mv=-15-5+5 log 10000
mv=-20+5 log 10000,mv =-20+20, Apparent magnitude mv=0, it will appear to be one of the brightest stars in the sky.
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