We offer you the astronomy calendar for June 2020. Astronomy is the foundation upon which astrology can operate. Actually, astrology and astronomy were treated together, under the Latin name of astrologia, being separated only by the Western 17th century philosophy. One thing is sure: a good astrologer needs to study astronomy.
Thursday, June 4th: Mercury at Greatest Eastern Elongation
In astronomy, a planet’s elongation is the angular separation between the Sun and the planet, with Earth as the reference point. The greatest elongation of a given inferior planet (Mercury or Venus) occurs when this planet’s position, in its orbital path around the Sun, is at tangent to the observer on Earth. The planet Mercury reaches greatest eastern elongation of 23,6 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the evening sky.
Friday, June 5th: Full Moon
The full moon is the lunar phase when the Moon appears fully illuminated from Earth’s perspective. This occurs when Earth is located directly between the Sun and the Moon (more exactly, when the ecliptic longitudes of the Sun and Moon differ by 180°). This means that the lunar hemisphere facing Earth – the near side – is completely sunlit and appears as a circular disk, while the far side is dark.
June full moon was known by early Native American tribes as the Full Strawberry Moon, because it signalled the time of year to gather ripening fruit. It also coincides with the peak of the strawberry harvesting season. This moon has also been known as the Full Rose Moon, the Full Honey Moon, the Corn-Planting Moon, the Mead Moon and the Thunder Moon.
Friday, June 5th: Penumbral Lunar Eclipse
A penumbral lunar eclipse occurs when the Moon passes through the Earth’s partial shadow, or penumbra. During this type of eclipse, the Moon will darken slightly, but not completely. This penumbral lunar eclipse will be visible throughout most of Europe, Africa, Asia, Australia, the Indian Ocean, and Australia.
This is the second lunar eclipse in 2020. The first one occurred on January 10th. The third and the fourth will occur on 4th/5th July and on 29th/30th November.
Sunday, June 21st: New Moon
The New Moon occurs when the Sun and Moon are aligned, with the Sun and Earth on opposite sides of the Moon. The new moon is the first lunar phase, when the Moon and Sun have the same ecliptic longitude. At this phase, the lunar disk is not visible to the unaided eye, except when silhouetted during a solar eclipse. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere.
Sunday, June 21st: Annular Solar Eclipse
An annular solar eclipse occurs when the Moon is too far away from the Earth to completely cover the Sun. This results in a ring of light around the darkened Moon. The Sun’s corona is not visible during an annular eclipse.
The path of the eclipse will begin in central Africa and travel through Saudi Arabia, northern India, and southern China before ending in the Pacific Ocean. A partial eclipse will be visible throughout most of eastern Africa, the Middle East, and southern Asia.
Monday, June 22nd: June Solstice
This is the first day of summer (summer solstice) in the Northern Hemisphere and the first day of winter (winter solstice) in the Southern Hemisphere. The June solstice marks the first day of astronomical summer in the Northern Hemisphere and the first day of astronomical winter in Southern Hemisphere. The North Pole of the Earth will be tilted toward the Sun, which will have reached its northernmost position in the sky and will be directly over the Tropic of Cancer at 23.44 degrees north latitude. This is also known as the northern solstice.