it is beacause it is a ball of fire
No, Jupiter is typically the 4th brightest object in the sky after the Sun, Moon, and Venus. It can vary in brightness depending on its position in its orbit and its alignment with Earth.
yes
No. The Sun is
"Sky-fire" could be considered a metaphor for the word "sun" because it conveys the sun's intense brightness and fiery appearance in the sky. The term evokes a sense of power and energy associated with the sun's light and heat.
Um, Wouldn't that be the sun?!?!
Venus
The position of the sun relates to the length of the shadow cast by an object because, when the sun is above the object there is no shadow yet, when the sun is say to the east of the object a shadow is cast towards the west, the farther the sun for example east the longer the shadow will be towards the west.
The simile "hung like a nickel in the sky" compares the dim sun to the way a nickel would appear if it were suspended in the sky. It implies that the sun is small, feeble, and lacking its usual brightness.
This is because it is the center of our solar system. Many items orbit around the sun. Also, it is unmistakable and almost always visible from some point on the Earth. There are no other objects in the sky with such a large impact on the Earth.... unless an object from the sky impacts the Earth (like an asteroid).
Magnitude is almost Always used when referring to Brightness of celestial object, although similar in term it can also be used in describing the brightness of the sky in the area viewing.
The Moon is illuminated by the Sun. At full moon, we see the bright part - the illuminated part. At new moon, we see mostly the dark part. (This part is also slightly visible, due to light reflected from the Earth.)
Gemini is a constellation, not a specific object in the sky.