Besides distance from Earth, what two primary inherent properties of the comet itself determine its apparent brightness?
Answer
Its actual size and its reflective properties
The apparent brightness of the comet depends on a combination of its actual size, how reflective its surface materials are, and its distance from both the Earth and the Sun.
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Interstellar Comet 3I/ATLAS Passes Close to Earth. Here's Why it ...
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What does the Roman numeral 'I' in the designation 3I/ATLAS indicate?On what specific date did Comet 3I/ATLAS reach its nearest point to Earth?Where did Comet 3I/ATLAS originate?Which NASA probe was actively observing 3I/ATLAS on the day of its closest approach?What is the characteristic of Comet 3I/ATLAS's trajectory that defines its singular viewing opportunity relative to Earth?According to general viewing advice, what environmental factor is considered paramount for seeing a comet's diffuse glow?What specific equipment is frequently recommended to help observers resolve faint details or the coma of a comet like 3I/ATLAS?How does the visibility window of 3I/ATLAS compare to that of a typical long-period Oort Cloud comet?Besides distance from Earth, what two primary inherent properties of the comet itself determine its apparent brightness?What factor causes the specific recommended viewing time (e.g., pre-dawn east vs. post-sunset west) to vary regionally for Comet 3I/ATLAS?