Symbol for Pluto

The symbols of the planets, Moon and Sun are used in both astronomy and astrology. The symbol for Pluto is made from a monograph of the first two letters in the word PLuto. It’s also from the initials of the astronomer Percival Lowell, who predicted that the planet would be found through its gravitational influence on Neptune and Uranus. Of course, Pluto is not a planet anymore.

Fraser Cain

Fraser Cain is the publisher of Universe Today. He's also the co-host of Astronomy Cast with Dr. Pamela Gay. Here's a link to my Mastodon account.

Recent Posts

Antarctica Has Gotten 10 Times Greener in 35 Years

Our satellites are dispassionate observers of Earth's climate change. From their vantage point they watch…

18 minutes ago

White Dwarfs Could Have Habitable Planets, Detectable by JWST

White dwarfs are dead stars like our Sun. Although they're no longer performing fusion in…

1 hour ago

Catch Jupiter at Opposition 2024 This Coming Weekend

Now is the time to catch Jupiter at its best. The King of the Planets…

2 hours ago

Dragonfly is Going to Titan on a Falcon Heavy

NASA has given SpaceX the contract to launch the Dragonfly mission to Saturn's moon Titan.…

18 hours ago

A New Reconfigurable Structure Could Be Used to Make Space Habitats

Even some fields that seem fully settled will occasionally have breakthrough ideas that have reverberated…

1 day ago

What's Inside Uranus and Neptune? A New Way to Find Out

Uranus and Neptune are "ice giants," containing chemicals like methane and ammonia, but compressed under…

1 day ago