Can color blindness be an astronomer? In fact, most of the photos analyzed by astronomers in daily life are black and white. The colorful astronomical photos we see in magazines and other color prints are actually synthesized by processing black and white photos of different bands taken by multiple telescopes. And these bands are not necessarily in the range of human visible light, so even for people with normal vision, these pictures are not the true colors of celestial bodies. The following statements are in line with the text:. ['Astronomers need to identify the color of visible light.', 'The scientific value of colored astronomical photos is relatively low.', 'Astronomical pictures are synthesized from color photos in different bands.', 'People with normal vision cannot fully recognize the original color of the celestial body.']