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3 votes
1 answer
220 views

Are the bright dots in this image individual stars?

I saw this picture of M51 (Whirlpool galaxy) and noticed many, many bright dots around and in the galaxy. I have freehand-circled a few as examples. Are these individual stars (probably supergiants) ...
slowerthanstopped's user avatar
31 votes
2 answers
38k views

How many stars and galaxies can be seen by the naked eye?

How many of the luminous dots that we see naked are galaxies and not stars from our galaxy? I imagine that the majority of the luminous points that we see naked eye during the night, are actually ...
Mario Stefanutti's user avatar