Marty McGuire. Have you noticed the moon in the blue skies the last few afternoons? Your notification has been saved. There was a problem saving your notification. Manage followed notifications. Close Followed notifications. Please log in to use this feature Log In. Don't have an account? Sign Up Today. Most Popular. This website is not intended for users located within the European Economic Area.
Even so, eclipses normally happen only one full moon out of every six; the other times the Earth's shadow is either too high or too low to touch the moon. Two things contribute to the moon being visible in daylight. First, it is bright enough that its light penetrates the scattered blue light of the sky. If you're looking at exactly the right spot with a telescope, you can also see the planets Mercury, Venus, and Jupiter in daylight, plus a few of the brightest stars though few casual observers can actually pull this off.
Secondly, the moon must be high enough in the sky to be visible. Because of the Earth's rotation, the moon is above the horizon roughly 12 hours out of every Over the course of the Moon completing an orbital period, it goes through eight phases — i. Essentially, the sun always illuminates only half of the moon, which we see from different angles as it rotates around the Earth. At the beginning of the cycle, we cannot see the Moon because none of its illuminated side is pointed towards Earth.
Over the course of the next The reason the moon is at its brightest during a Full Moon is simply because it is during this phase that it is exactly opposite the Sun. However, as it gets closer to the New Moon phase of its cycle, its distance from the Sun decreases. This means that while it is less visible at night, during the daytime, it is more luminous.
And there you have it. Using a pair of binoculars or a telescope, you will that it looks a bit different to the Moon we see at night. If you do choose to observe the Moon at daytime, do so with caution as sunlight could damage your eyesight. Craters, highlands and lunar maria will still be easy to identify but may not look as they do at night. There are a few spectacular effects to look out for however, which you can see with the naked eye or through binoculars.
Towards the end of the lunar month, another delightful phenomenon to see with your naked eye is earthshine. For more on this, read our guide Earthshine: what is is, how to see it.
Look to the eastern sky just before sunrise to see a rising crescent Moon. You may notice that you can see the rest of the moon glowing faintly.
0コメント