When you buy through links on our articles, Future and its syndication partners may earn a commission.A slender crescent moon, Mars and Aldebaran and two sparkling star clusters will create a beautiful predawn scene for early risers on July 11. . | Credit: ascg Photography via Getty ImagesBefore dawn on July 11, early risers will be treated to a striking celestial scene low in the east-northeast sky.A slender waning crescent moon, softly glowing with earthshine, will appear to align with the orange light of Mars, the orange-red star Aldebaran, with the sparkling Pleiades and Hyades star clusters close by. Together, they will form a beautiful morning tableau in Taurus — one well worth setting an alarm to see.First: the moonMost obvious is, of course, the moon, appearing as a lovely waning crescent, 14% illuminated. It rises around 2:00 a.m. local daylight time and will likely appear as a thin arc of light enclosing a ghostly ball. Here is one of nature’s beautiful sights and fits the old saying, “the old moon in the new moon’s arms.” Leonardo da Vinci (1452-1519) was the first to recognize it as earthshine. That faint bluish-gray light is light from Earth reflected toward the moon. Earth’s light, of course, reflects sunlight, so earthshine is really sunlight that is reflected off Earth to the moon and reflected toward Earth.Next: MarsThe second object is a planet: Mars. It will appear as an orange-yellow star roughly five degrees below and slightly to the right of the moon. Your clenched fist held at arm’s length measures roughly 10 degrees in width, so Mars will hover roughly ‘half a fist-width” below the lunar disk.AdvertisementAdvertisementMars rises around 2:40 a.m. local time and is about 15 degrees above the east-northeast horizon by dawn. So as the eastern sky begins to lighten up, Mars will be about “one and a half fist-widths” above the horizon.It currently resides within the boundaries of the zodiacal constellation of Taurus the Bull. Mars remains rather inconspicuous, but its luminosity continues to increase as we gain on it in our smaller, faster orbit, though it is a very slow process. The planet moves from 17.5 light minutes away on July 1 to 15.4 light minutes by Sept. 1, brightening ever-so-slightly from magnitude +1.3 to +1.2. At its closest approach this coming February, Mars will be only 5.6 light minutes from Earth and will appear to shine fully 10 times brighter than it does now.On July 11, looking low toward the east about 90 minutes before sunrise, skywatchers will see an eye-catching alignment of the crescent moon, Mars and the bright orange star Aldebaran, accompanied by the beautiful Pleiades and Hyades star clusters. | Credit: Joe Rao using Sta …
