Assumption of the Blessed Virgin Mary
The Assumption of the Blessed Virgin Mary is, according to the beliefs of numerous Churches, the bodily taking up of Mary, the mother of Jesus, into Heaven at the end of her earthly life. The analogous feast […]
Calendar
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First Quarter Moon
The Moon is at First quarter on this date -it will be visible high in the southern sky in early evening.
Moon at Perigee
Every month, the Moon’s eccentric orbit carries it to perigee, the Moon’s closest point to Earth in its orbit – then 2 weeks later, to apogee, its most distant point from Earth.
Conjunction of Mercury and Mars
Mars and Mercury will be less than a degree apart in the sky - this may be VERY difficult to view with the naked eye due to their proximity to […]
Jupiter at Opposition
Jupiter will be in opposition to the Sun on this date; this is when the Earth is positioned between the Sun and Jupiter.
Hermann von Helmholtz, polymath, b.1821
Hermann Ludwig Ferdinand von Helmholtz (31 August 1821 – 8 September 1894) was a German physicist and physician who made significant contributions in several scientific fields. The largest German association of research institutions, the Helmholtz Association, is […]
John H. Chapman, Canadian space scientist, b. 1921
John Herbert Chapman (August 28, 1921 – September 28, 1979) was a Canadian space researcher. He started his career with his work on radio propagation and the ionosphere. Chapman was a member of the Royal Society of […]
Moon at Apogee
The Moon’s distance from Earth varies throughout its monthly orbit because the Moon’s orbit isn’t perfectly circular. Every month, the Moon’s eccentric orbit carries it to apogee – its most distant point from […]
Lord Ernest Rutherford, Nobel Prize for nuclear physics, b. 1871
Ernest Rutherford, 1st Baron Rutherford of Nelson, OM, FRS, HonFRSE (30 August 1871 – 19 October 1937) was a New Zealand-born British physicist who came to be known as the father of nuclear physics. Encyclopædia Britannica considers him to be […]
Mercury at Aphelion
Mercury's 88-day orbit around the Sun will carry it to its furthest point to the Sun – its aphelion – at a distance of 0.47 AU.
Conjunction of the Moon and Spica
The planet Venus will appear 1° 30' from the star Spica at sunset on this date.
Labor Day (USA)
Labor Day is a federal holiday in the United States celebrated on the first Monday in September in any given year (i.e. a single day from September 1 through September 7) to honor and recognize […]