The astronomical magnitude system, initially developed by Hipparchus and refined by Ptolemy, quantifies the brightness of celestial objects, with brighter objects having lower magnitudes. Norman R.
Astronomy on MSN
Why do brighter astronomical objects have negative magnitudes?
What is the baseline for determining the magnitude scale of celestial objects? Why do brighter objects have negative numbers? Dean TreadwayKnoxville, Tennessee The first observer to catalog ...
Much as we measure the intensity of natural phenomena such as earthquakes or tornadoes with a “magnitude,” we also use the term to refer to a star’s brightness. Unfortunately, many beginning ...
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World's oldest star chart may be 2,300 years old and from China — but not everyone agrees
The oldest star chart in the world was made in China more than 2,300 years ago, a hotly debated preprint study finds. Researchers at the Chinese National Astronomical Observatories analyzed the "Star ...
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