🌙 今晚是新月，部分地区可见日食：对于新西兰、南极和南太平洋等地的观测者来说，今晚的天象尤为特别，将能目睹一场新月伴随的日食。届时，月球将部分遮挡太阳，形成独特的月牙状景象。日食发生的条件是月球恰好运行到地球和太阳之间，这一天文学现象仅发生在农历的新月阶段。

🌑 新月期间月相的特点：新月，又称朔月，是指月球处于地球和太阳之间，此时我们从地球上看到的月球被太阳照亮的部分是其背面，因此肉眼无法看到月球，其可见度为0%。从新月开始，月球将逐渐显现，并在接下来的几天里开始重新出现在夜空中。

🌕 月相变化的科学原理：月相的变化是由月球绕地球公转引起的，这是一个大约29.5天的周期。在这个周期中，太阳、月球和地球之间的相对角度不断变化，导致我们从地球上看到的月球被太阳照亮的部分也随之改变。月相的八个主要阶段依次为：新月、峨眉月、上弦月、盈凸月、满月、亏凸月、下弦月和残月，它们构成了一个循环往复的天象过程。

It's the New Moon tonight, and a partial solar eclipse in parts of the world. Skygazers in New Zealand, Antarctica, and the South Pacific will see part of the Sun covered, lit up in a crescent shape. 

Solar eclipses only occur at the New Moon phase of the lunar cycle (a series of eight unique phases of the moon's visibility), because that’s the only time the Moon is positioned directly between the Earth and the Sun, allowing it to cast a shadow on Earth.

So, what else is happening with tonight's New Moon?

What is today’s moon phase?

As of Sunday, Sept. 21, the moon phase is New Moon, meaning it is not visible at all to us on Earth. NASA's Daily Moon Observation confirms this, saying there is officially 0% visibility tonight. With this in mind, you won't be shocked to hear that there won't be anything for you to see on its surface tonight. But from tomorrow, the moon will start to reappear again.

When is the next full moon?

The next full moon will be on Oct. 6. The last full moon was on Sept. 7.

What are moon phases?

According to NASA, moon phases are caused by the 29.5-day cycle of the moon’s orbit, which changes the angles between the Sun, Moon, and Earth. Moon phases are how the moon looks from Earth as it goes around us. We always see the same side of the moon, but how much of it is lit up by the Sun changes depending on where it is in its orbit. This is how we get full moons, half moons, and moons that appear completely invisible. There are eight main moon phases, and they follow a repeating cycle:

New Moon - The moon is between Earth and the sun, so the side we see is dark (in other words, it's invisible to the eye).

Waxing Crescent - A small sliver of light appears on the right side (Northern Hemisphere).

First Quarter - Half of the moon is lit on the right side. It looks like a half-moon.

Waxing Gibbous - More than half is lit up, but it’s not quite full yet.

Full Moon - The whole face of the moon is illuminated and fully visible.

Waning Gibbous - The moon starts losing light on the right side.

Last Quarter (or Third Quarter) - Another half-moon, but now the left side is lit.

Waning Crescent - A thin sliver of light remains on the left side before going dark again.