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There are generally a couple of planets visible every night of the year. Which planets will be visible and when depends on where each of the planets (and the Earth itself) are in their orbits. Here on August 28, 2009, for example, Jupiter rises about sunset and is brightly visible all night. Venus and Mars rise before dawn. Saturn and Mercury are not visible this month, because they are too close to the Sun to be seen.
the 5 most visible planets are the biggest planets such as jupiter saturn and mars pluto is to small and murcury isnt visible due to the suns rais.
Generally true, planets don't emit their own light, but are visible largely because of reflected light, the illumination provided by their star, in the case of our solar system, by the Sun. Some planets might produce trivial amounts of light by other means, for example from lightning, volcanism, mineral fluorescence, etc.
They are both visible and inside the solar system.
The answer is different for each hour of night, for each night of the month, for each month of the year, and for December of each year.
There is enough sunlight reflecting off them and reaching our eyes.
The planets most certainly ARE visible in the northern hemisphere.
There are generally a couple of planets visible every night of the year. Which planets will be visible and when depends on where each of the planets (and the Earth itself) are in their orbits. Here on August 28, 2009, for example, Jupiter rises about sunset and is brightly visible all night. Venus and Mars rise before dawn. Saturn and Mercury are not visible this month, because they are too close to the Sun to be seen.
the 5 most visible planets are the biggest planets such as jupiter saturn and mars pluto is to small and murcury isnt visible due to the suns rais.
Generally true, planets don't emit their own light, but are visible largely because of reflected light, the illumination provided by their star, in the case of our solar system, by the Sun. Some planets might produce trivial amounts of light by other means, for example from lightning, volcanism, mineral fluorescence, etc.
the naked eye determines if it is visible.
Venus Jupiter
They are both visible and inside the solar system.
The answer is different for each hour of night, for each night of the month, for each month of the year, and for December of each year.
the stars and some of our planets
Uranus
Mars, Jupiter & Venus. all of them visible if you know where to look, Venus being the easiest to find, because is the brightest start in the predawn sky. Carimbo Hanky