Tag: Astronomy

The Moon in astrology

Astrology, the teaching of the interpretation and meaning of star constellations for human life, shows once again the sun’s dominance in our society and the insignificant role the Moon plays. Everyone knows »his/her« sign of the zodiac, meaning the position of the Sun at the time of their birth. If you say, for example, »I am an Aquarius«, you refer to the fact that the Sun was positioned in the astrological sign Aquarius when you were born. Also, some people are still aware of the ascendant, being the sign, which was on the eastern horizon at the time of birth (lat. ascendere = to rise). But which sign the Moon is in their birth horoscope, only very few people know. [read more]

Column: Worth reading, Worth seeing | 2 comments
Tags: , ,

When was the full moon in the night of New Year’s Eve?

Today is the last day of 2012 and we asked ourselves when there has been or will be a full moon in the past or the future at the turn of the year. What a fascinating picture, if you are imagining also the full moon next to the firework welcoming the New Year. The spectacle of humans meets the eternal beauty of the universe … [read more]

Column: Worth reading, Worth seeing, Worth smiling | 1 comment
Tags: ,

Adam Elsheimer paints the Moon like no one before

More than 400 years ago, the German artist Adam Elsheimer (1578–1610) painted the picture »Flight into Egypt« (1609), where he depicted the well-known biblical scene of the escape of Joseph and Maria with the Christ Child. The special feature of this painting is, that it shows the full moon and night sky with such a richness of detail on a scale not seen before. Scientists – like for example Dr. Christian Sicka of the ›Deutsche Museum‹ Munich – have examined this work and come to the conclusion that this is possibly the first correct astronomical true to life depiction of the night sky in paintings. One can easily recognise the lunar maria on the Moon’s surface and also the Milky Way, moreover a clear graduation of brightness with the individual stars. [read more]

Column: Worth reading, Worth seeing | 2 comments
Tags: , ,

Selenography – maps of the Moon

Looking at the Moon, you can recognise the spots on the surface with the naked eye, which are termed lunar maria and have always been inspiring people’s imagination. It is actually molten rock that rose to the surface during the origin of the Moon and then hardened. If looked at closer and using a telescope as an aid, you are able to make out mountains and valleys and a large amount of craters. In short: they are landscapes that give our Moon its face. [read more]

Column: Worth reading, Worth seeing | no comments
Tags: , ,

The libration of the Moon

Who believes to see a staggering Moon at night, has probably had a drop too much, although a staggering movement of the Moon actually exists in astronomy. This is called »libration«,  but happens very slowly and is therefore only visible by the naked eye in time-lapse photography.

The Moon orbits around the Earth in a so called synchronous rotation. This means that it always faces one hemisphere towards the Earth, while the reverse side of the Moon is not visible from Earth. Due to certain physical conditions (relating to orbits, angular velocity, centres of mass, among others), what happens is that the visible surface of the Moon varies slightly during the course of the moon cycle, and there is a gentle change of inclination of the Moon’s axis or it appears to turn a little. [read more]

Column: Worth reading, Worth seeing | 1 comment
Tags: , ,

Supermoon. Everything super, eh?

The Moon circles the Earth. But indeed, it is no circle, but an ellipse, which portrays itself in space like a kind of spiral, because the Earth, together with the Moon, circles the Sun. And thus, the distance between the Earth and the Moon does not remain the same, but continuously changes. The distance varies between approx. 363,400 km (called perigee) to approx. 405,500 km (called apogee). [read more]

Column: Worth reading, Worth seeing | no comments
Tags:

To the hairdresser at the full moon?

You always hear that certain things should be done or left undone at certain phases of the lunar cycle, also during a full moon. You can believe it or not. It surely cannot be proven and to be honest, we are quite skeptical with regards to the attribution of human activities and lunar events. However, we would not like to exclude it – after all neither the efficacy nor the inefficacy of such theses has been proven. As long as you don’t get caught in your own convictions, it is part of people’s liberty to create their lives freely. [read more]

Column: Worth reading, Worth seeing, Worth smiling | 2 comments
Tags: , ,

The full moon at daytime

One obviously has the night sky before one’s eyes when thinking of the full moon. In reality, however, the event »full moon« has nothing to do with the fact whether it is night or day for us. The full moon occurs when Sun – Earth – Moon form a line in space and exactly in this order. The Earth lies in fact between the Sun and the Moon. Depending on what time this happens, it is night on the hemisphere that is turned away from the Sun and you can see the Moon in the sky. But on the hemisphere that is turned towards the sun it is daytime at this point and the full moon cannot be seen, because when observed from this position it is actually behind the Earth. [read more]

Column: Worth reading, Worth seeing | no comments
Tags:

The lunar maria

When observing the Moon, you can see dark spots on its surface. In the old days, these were thought to be the seas and oceans just like on Earth, so they were called »mare« (plural: »maria«). Giovanni Riccioli (1598–1671), an Italian priest and astronomer was leading in this area and was responsible for giving many lunar maria their Latin or partially poetic names. We would like to single out a few that we consider to be worthwhile mentioning. [read more]

Column: Worth reading, Worth seeing | no comments
Tags:

Halo and corona

We would like to turn our attention to two interesting types of light apparitions around the Moon: halos and coronas. Both are optical phenomena in the atmosphere that, if looked at from a physical point of view, come about in different ways and also look dissimilar.

A halo (left picture) develops through refracting ice crystals and creates a clearly defined light ring around the Sun or the Moon, whereas the surface between the celestial body and the ring, almost appears to be empty. Light spots, light arches and pillars can also emerge. [read more]

Column: Worth reading, Worth seeing | no comments
Tags: ,