Blue Moon, Dark Moon, Nose Moon, Tail Moon

What is a Blue Moon?

The year 2018 is a Blue Moon bonanza! There was one in January and one on March 31st. The next one won’t arrive until October 2020. But, don’t worry… we’ve got 3 other types of moons lined up for you.

A blue moon tinted blue to make it look like the moon is actually blue. A blue moon means 2 full moons in a calendar month.
A Blue Moon. (This image was tinted to make it blue. No, a Blue Moon is not blue.)

The Basics

A Blue Moon happens when there is a Full Moon on the 1st* day of the month and a Full Moon on the last* day of the month. Two full moons in one month!

In other words, a Blue Moon is when there is a full moon twice in the same month. These two full moons always happen on the 1st or 2nd and the 30th and 31st of a month. “Blue Moon” is just a name for the second moon in that month – the moon does not turn the color blue.

Read on to learn about how the Blue Moon came to be and some suggestions for giving the other moon phases “Blue Moon” style names when they appear twice in a month. Suggestions are: Dark Moon, Nose Moon, and Tail Moon.Click here to continue reading…

Moon Phase Emojis – A Review

Moon Phase Emojis – and other space emojis

Emoji designers created a nice range of astronomy emojis and space emojis.  My favorite emojis are the Moon Phase Emojis. Here is a listing of all of the space emojis as seen on Apple’s Mac “High Sierra” OS.

All of the astronomy and space themed emojis in one image
All of the astronomy and space themed emojis in one image

Space emojis to copy (these look different on each browser)

Here are the same emojis as shown in the image above, but shown as real emojis that can be selected individually and copied.

Astronaut emojis

👩‍🚀 👨‍🚀

Earth globe emojis

🌎 🌍 🌏

Moon phases emojis

🌕 🌖 🌗 🌘 🌑 🌒 🌓 🌔

Moon, Sun, and Stars emojis

🌚 🌝 🌞 🌛 🌜 🌙 💫 ⭐ 🌟 ✨

Explosion emoji, Comet emoji, Sun emoji, Rainbow emoji

💥 ☄ ☀ 🌈

Spaceship emoji, Satellite emoji

🚀 🛰

Maps and images with the earth, moon, sun, and stars emoji

🗺 🎑 🌅 🌄 🌠 🌇 🌃 🌌

Astronomy tools emoji, Telescope emoji

📡 🔭

Religions with moon and stars emoji

☪ ✡ 🔯

Abstract sun, earth, galaxy, star, and full moon emojis

🔅 🔆 🌐 🌀 *️⃣ 🎴

Horoscope emojis, Zodiac emojis

♈ ♉ ♊ ♋ ♌ ♍ ♎ ♏ ♐ ♑ ♒ ♓

Miscellaneous space symbol emojis

✳ ✴ ☾ 〰 ➰ ➿

Emoji Variations

Did you know that Emojis look different depending on which type of device you are seeing them on?

Here is what the Full Moon Emoji looks like on Apple Macs

The Full Moon emoji as seen on Mac Computers - 3d, yellow, cratered, and glowing
The Full Moon emoji as seen on Mac Computers.

And here is what it looks like on Microsoft PCs

The Full Moon emoji as seen on Mac Computers - flat, orange, spotted, cartoon.
The Full Moon emoji as seen on Windows PCs.

References

Emojipedia has a catalog of all the variations of emojis including the Full Moon Emoji

 

 

Shapes with Shadows – astrosketching Moon features with Alex Massey

Shapes with Shadows – what they can tell us

This the first of two special guest posts by Australian astrosketch artist Alexander Massey 

Live View Sketch of Moon craters Azrachel, Alphonsus, and Ptolemaeus by Alex Massey

Ptolemaeus, Alphonsus, and Arzachel… the names of three massive, interlocking craters on the Moon. These three craters tell the story of the ancient Moon’s creation and evolution. It’s a story of violent bombardments and oceans of lava. We can use light and shadows to reveal the shapes and deep history of these features.

Most people think of astronomy a science of light. But, light creates shadows when it hits things. Those features that lie in the shadows, the dark parts and seemingly just-in-the-way-of-the-light parts, are just as important as those that shine brightly. These dark shadows form most of the mass of all galaxies, house stellar nurseries, reveal old lava rivers on the Moon, and create curious plays of light and dark. These can play tricks on our eyes and make patterns appear.

Click here to continue reading…

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 (rotated).

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.

Click here to continue reading…

The Moon Moves Toward the Dawn – a Mnemonic

The moon moves toward the dawn

Memorize this mnemonic: The moon moves toward the dawn. This phrase describes the day-by-day movement of the moon. With this simple phrase, you can understand the phases of the moon. You will actually begin to see the moon’s beautiful orbit traced out in the sky.

Repeat. The moon moves toward the dawn. The moon moves toward the dawn. 

The moon moves toward the dawn.
It rises higher in the dusky sky after each day. It sweeps over the hills.
It circles and rolls. It transits. It leaves the Sun, then chases the Sun.
The moon moves toward the dawn.
Look East! That’s where the moon wants to go.
Once arrived, it crosses the face of the Sun and once again moves toward the dawn.
The moon moves toward the dawn.