How long does it take an asteroid to get from the asteroid belt, to Earth? I know the asteroids don't go directly from the asteroid belt to Earth, but I know it's not quick, either. The time probably
Take a star of a given mass (say $1.0 mathrm{M_{odot}}$ or $1.1 mathrm{M_{odot}}$), what affects the star's luminosity as a function of time and how much? (metallicity?, rotation?) It seems…
This answer to Compute Planet's Apparent Visual Magnitude reports the new work on planetary magnitudes, and contains an intriguing blurb about Neptune: Neptune keeps getting brighter. No one knows…
This answer includes a stunning photo of the Moon and Jupiter "Trails of the Shifting Moon" by photographer Jin Lu. The caption reads: From the photographer: "I spent 4 days capturing the trail…
علم الفلك العلمي من القرن الخامس عشر ، توقظ أوروبا من خمول العصور الوسطى. العصر الذي نعرفه باسم "النهضة" يبدأ. في علم الفلك ، رفض نيكولاس كوبرنيكوس الكون مركز الأرض واقترح نظرية مركز الشمس ، مع الشمس في مركز النظام الشمسي والأرض ، تماما مثل بقية الكواكب ، تدور حوله.
Given that Jupiter is roughly 3x as massive compared to Saturn and is located right next to the asteroid belt, it feels that Jupiter should easily have a larger amount of captured moons. ومع ذلك