Astar has a brightness 10,000 times less than vega. what is the apparent magnitude of the star?

their crystal patterns have been disrupted by stress

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr