Who is Danxin Night Sky and who knows?

Since the moon itself does not emit light, the half of the sphere facing the sun is a bright area, and the other half of the sphere is a dark area. As the position of the Moon changes relative to the Earth and the Sun, the illuminated side of the Moon is sometimes facing the Earth and sometimes facing away from the Earth; Sometimes the part of the moon facing the Earth is larger, sometimes it is smaller, so that different phases of the moon appear. Whenever the moon orbits between the sun and the earth, and the hemisphere illuminated by the sun is facing away from the earth, people cannot see the moon on the earth, and this day is called the "new moon", also called the "new moon", which is the first day of the lunar calendar.

After the new moon, the moon follows the direction of the earth's rotation, and the bright area gradually turns to the earth, and the moon can be seen on the earth showing a trace of slender silver hooks, appearing in the western sky, bowing its back towards the sunset, this moon phase is called "moth eyebrow moon", which is the beginning of the lunar calendar.

Three, four. Subsequently, the moon moves away from the sun in the sky day by day, at the beginning of the lunar calendar.

On July and August, half of the bright area facing the Earth, one can see the half moon (convex facing west), and this phase of the moon is called the "first quarter moon". When the Moon moves in the direction of the Earth's back sun, the lunar calendar.

Ten. Five, ten.

On the sixth and seventeenth, the bright areas of the moon are all facing the earth, and we can see a full moon, and this phase of the moon is called the "full moon", also called "hope".

Internet writer Representative work "Blood-stained Rivers and Lakes" is not bad, I read it, hehe, and now I'm chasing the waves**.

Night, quietly fell. A thick black curtain covers the earth and the clear blue sky, casting a black veil over our beautiful home. The night sky is unfathomable and ever-changing, showing its most beautiful posture in front of our eyes.

The night sky in my eyes is wonderful. In the boundless blue silk cloth, a full moon hung high there, like a huge crystal pearl, set in the deep blue silk, and a few stars were like scattered diamonds, dotted with the silk cloth. I really don't know if it's the stars and the moon that make the sky so deep, or if the sky makes the stars and the moon so bright.

When the moon turned into a crooked crescent moon, I often imagined the sky as a vast ocean, and the thin teeth became a small boat in the sea, how small it looked. The dense stars were next to each other, like guiding lights, guiding the way for the ship. When the moon was about to become round, I felt that the sky was like a huge dark blue tablecloth, and the moon was a round jade that had been thrown on the table, missing a small piece, and the scattered stars, like fragments of a jade plate, shimmered with white ......lightThe night sky in my eyes is peaceful, and the night is deep and silent.

That moon, serenely spit out her clear light, like a goddess, illuminating the world. The stars on the side also tried to shine. Occasionally, a cloud floated softly over and obscured the moon, and after a while, floated away lightly.

The black sky gives people a sense of unfathomability. Hehe went to bed early.

Look up, look at the night sky, and be amazed.

Space expands, stars mostly go against each other, and the light emitted by the stars becomes longer and longer in wavelength as it travels, so that the light coming from afar actually looks very dim. The light that has been emitted is still being converted into other forms of energy and will not last forever.

I remember the landlord's question as a very famous question in the astronomical world back then, and the comprehensive answer was quite complicated, I only remember so much.

Just now, I opened the window and looked, and it turned out that the night sky was black!

The main zodiac signs of the spring starry sky are Ursa Major, Ursa Minor, Leo, Shepherd, Hound, Virgo, Raven, and Hydra.