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Paranal Observatory nights. [3] The concept of noctcaelador tackles the aesthetic perception of the night sky. [4]Depending on local sky cloud cover, pollution, humidity, and light pollution levels, the stars visible to the unaided naked eye appear as hundreds, thousands or tens of thousands of white pinpoints of light in an otherwise near black sky together with some faint nebulae or clouds ...
Historical brightest stars, the brightest star in Earth's night sky at each period within the last or next 5 million years; Limiting magnitude; List of variable stars; List of semiregular variable stars; List of stars that have unusual dimming periods; List of brightest natural objects in the sky; List of largest stars; List of most massive stars
The horned “devil comet,” notable for a recent series of explosive outbursts, is visible in the night sky now and will appear during April’s total solar eclipse.
The closest encounter to the Sun so far predicted is the low-mass orange dwarf star Gliese 710 / HIP 89825 with roughly 60% the mass of the Sun. [4] It is currently predicted to pass 0.1696 ± 0.0065 ly (10 635 ± 500 au) from the Sun in 1.290 ± 0.04 million years from the present, close enough to significantly disturb the Solar System's Oort ...
Light pollution, the term for the brightening of the night sky by unnatural lights, is increasing worldwide. On average, skies are getting 10% brighter each year globally, with the fastest rate of ...
If you’re in the northern U.S. and haven’t yet planned out your Valentine’s Day date, you’re in luck. Mother Nature is putting on a show, and you won’t have to pay a cent. The aurora ...