Fun Space Facts for Children: Neptune, the Bluest Planet

Neptune Image

The Planet Neptune

Name:   Neptune is named after the Roman God of the oceans, lakes and rivers. Poseidon is the Greek equivalent.   Neptune the God is often shown carrying a trident and riding sea horses.  In 1612 , the famous astronomer and scientist Galileo spotted the planet Neptune, whilst looking at the night sky, but mistook it for a star.  So Neptune had to wait until 1846, when it was officially discovered by both Urbain Le Verrier, (French) and Johann Galle, (German).

Diameter: 30,777 miles;  45930.78 kilometers

Temperature:  -353°F; -212.22°C

Fun Neptune Facts:  In keeping with tradition they decided to name the planet after a Roman God.  The planet being blue, how do you think they chose its name?  Of course,   it had to be Neptune, the Roman God of the seas!

Do you know where’s the coldest place in the entire Solar System?  If you’re guessing Neptune right now, you’re getting warmer (or should I say colder?).  Actually the chilliest place in our Solar System is on Triton; one of Neptune’s eight moons.  On Triton, the temperature is a bone shivering, bitter cold of -393°F (-263.1°C) !  And you thought the North Pole was freezing!

Neptune’s composition is similar to Uranus.  It’s mainly made up of hydrogen and helium.  Scientists think it also has an icy core of water, methane and ammonia.  It’s rich blue color comes from methane in Neptune’s atmosphere.

You need to use a telescope to see Neptune.  And even then it can be hard to spot.  The best time to look for Neptune is in the month of August.  In the summer of 1989, NASA’s Voyager 2 spacecraft took the first close ups of the planet.  You can see one of the images above.

Pluto is usually the furthest planet away in the Solar System.  But Pluto has a strange orbit, so occasionally it’s closer to the sun than Neptune.  Then Neptune becomes the furthest planet away and for up to twenty years at a time!

Next post: Fun facts about the dwarf planet Pluto.

Evonne Blanchard is the author of, ‘Amelia, the Moochins and the Sapphire Palace,’ and ‘Amelia, the Venutons and the Golden Cage.’ These are the first two books in, ‘Amelia’s Amazing Space Adventures,’ an exciting series of ten books set in outer space, (for children ages 5-9).

Ever wondered if aliens exist?  What if one needed your help?  Would you travel into outer space?  For the adventures…of a lifetime!

New – Book Two: Amelia, the Venutons and the Golden Cage

Amelia the Venutons cover with text

Uglesnoo needs Amelia’s help.  His sister is very sick.  The only cure is a repelling crystal from Neptune.  With his Earthling friend, Amelia, they must continue their quest.  More items are needed to buy the crystal.  But Venus is full of danger and angry aliens.  Are Uglesnoo and Amelia in over their heads?

Click below for a preview:


Read this book and over 1 million other books with Kindle Unlimited.

“A lively sequel offers a sure-handed blend of fantasy, humor, adventure, and an ingenious heroine.” Kirkus Reviews

5/5 star rating!  “Amelia, the Venutons and the Golden Cage is a wonderful children’s book that will allow your kids to get started in the Sci-Fi genre… The story is intriguing and well thought out. All in all, the author did a great job of creating an engaging story that kept my kids interested. We are definitely looking forward to the next book!”-

Book One: Amelia, the Moochins and the Sapphire Palace

When is a present not a present?  When it’s a friendly purple alien called Uglesnoo, from the planet Pluto!  Uglesnoo needs to leave right away for the Moon.  Uglesnoo also desperately needs Amelia’s help.  Should Amelia venture into outer Space?

kindle cover for upload

Click below for a preview:


Read this book and over 1 million other books with Kindle Unlimited.

 “Appealing Illustrations combine with lots of text to make this a great read for children transitioning from picture books to chapter books.” – Kirkus Reviews

The story is imaginative and fun…and a perfect book to stretch my oldest in his independent reading with something fun to keep his attention.”Beautiful Books for Children


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