July 1 – July 7, 2021, the waning crescent appears in the eastern sky. Early in the viewing period, the moon is among the dim stars of Pisces. As the week progresses, the moon wanes and moves farther eastward, appearing near Taurus.
by Jeffrey L. Hunt
The morning moon appears in the eastern sky during July 1 to July 7. Look eastward at one hour before sunrise.
Each morning the moon is farther eastward and the phase is noticeably thinner.
At the season an hour before sunrise, the sky is brightening. A binocular is helpful to locate the starry background.
Here are the highlights for the seven days:
July 1: The moon (55% illuminated) is about 35° up in the southeast and over 30° to the left of bright Jupiter. The moon is at its Last Quarter phase later today.
July 2: The thick crescent (45%) is in front of the stars of Cetus, one-third of the way up in the east-southeast.
July 3: The waning crescent (36%) is one-third of the way up in the east-southeast, 30° to the east of the Pleiades star cluster.
July 4: The crescent (27%) is about 20° to the right of Pleaides. It between Menkar, the brightest star in Cetus, and Hamal, in Aries.
July 5: The crescent (19%) is about 10° to the right of Pleiades and 18° to the upper right of Aldebaran.
July 6: The lunar crescent (12%) is to the right of a line from the Pleiades to Aldebaran, 6.7° below the star cluster and 7.0° above the star.
July 7: The crescent moon (6%) is nearly 10° up in the east-northeast, 8.2° to the left of Aldebaran.
As the image from 2020 above shows, the night portion of the moon is gently illuminated by earthshine; sunlight reflected from Earth’s clouds, oceans, and land.
Earthshine can be photographed with a tripod mounted camera. Depending on the camera’s settings the exposure can take a few seconds. The photographic properties of the image, 300mm lens, f 5.6, ISO 400, 5 seconds.
Articles and Summaries
October 26, 2021: Mercury is at its greatest morning appearance for the year. Look low in the east-southeast before sunrise.
October 25, 2021: This morning the bright gibbous moon seems to be caught between the horns of Taurus. Mercury is making its best morning appearance. The planet pack – Venus, Jupiter, and Saturn are in the evening sky.
October 24, 2021: Saturn is at its closest to Jupiter as the Jovian Giant picks up eastward speed. The morning moon and Mercury are visible before sunrise. Brilliant Evening Star Venus, Saturn, and Jupiter are in the sky after sunset.
October 23, 2021: This morning the bright moon is near the Pleiades star cluster. Mercury is making its best morning appearance. In the evening sky, Venus, Jupiter and Saturn are easy to spot.
October 22. 2021: Speedy Mercury is low in the east before sunrise. It is putting on its best morning performance of the year. Arcturus, in the east-northeast, is about the same altitude as Mercury.