Super Moon December 3rd, 2017

Super Moon

The closest approach that the moon will make on its monthly orbit around the Earth coupled with a Full Moon. The December 3rd Super Moon is here!

Here is an image showing how the arrangement of the Moon’s “Perigee” with the Full Moon results in the Super Moon.

Supermoon arrangement of moon's orbit around the Earth
Schematic showing how the “Super Moon” happens and the change in apparent size of the moon. The Moon appears about 14% larger during a Super Moon event.

The Full Moon + Orbit at Perigee = Super Moon.

The Moon is Upside Down

The Moon is Upside Down

The moon is upside down (as seen from the Southern Hemisphere)
The moon as seen from the Southern Hemisphere. source: Wikipedia.

When you are in the southern hemisphere, the moon looks upside down.

When I came back to the US from living in Australia for 4 years, I published a poster with a picture of the moon on in and I placed it “upside down” – someone pointed it out and I looked at the moon and said “the moon is upside down.” This was true – in the Northern Hemisphere – but to people living in the Southern Hemisphere the moon appears “upside down.”

I was shocked, but the claim was true – in the Northern Hemisphere! But to Australians and other people living in places in the Southern Hemisphere the moon appears “upside down.”

 

Train your Brain – See the shape of the solar system

Physical Astronomy by Daniel Cummings.

Train your Brain - See the solar system disk

See the solar system from Earth

Most people, when they look up at the night sky can easily see stars and identify some familiar groups of stars (asterisms and constellations). Some people can even find and name some planets – Venus, Jupiter, and Mars are all bright and easy to see.

But, there are many invisible wonders in the sky – and some of them can be seen without a telescope. In fact they are so big that a telescope is not the right tool to use; we have to use something even more powerful… imagination!

Using visualization and imagination, I am going to show you how to find and “see” a very large structure in our sky: the solar system disk itself.

Continue reading “Train your Brain – See the shape of the solar system”