Planets That Start With M

There are currently 13 planets that start with M. Two of them are Mercury and Mars in our Solar system and the other 11 are exoplanets found in other star systems. The organization in charge of naming these planets is the International Astronomical Union.

Unlike stars and constellations whose names come mostly from Greek mythology or Arabic words, planets get their names from many different cultures.

Here’s what each of the columns in the table means:

Planet: Name of the planet or exoplanet. Exoplanets are outside the Solar system and only a few of them receive proper names. Every few years the International Astronomical Union opens a contest to suggest names for newly discovered ones.

Star: The proper name and/or scientific designation of the star the planet orbits. Most of the stars with planets that receive proper names also get one.

Distance: Approximate distance from our Solar system to the star that hosts the planet. It is given in light-years.

Discovery: Year of discovery of the planet.

Meaning: Origin of the name of the planet.

MadalitsoNatasha (HD 85390)1112009“blessings” in the Nyanja language (Zambia, Mozambique)
MadriuArcalís (HD 131496)3592011Madriu-Perafita-Claror Valley UNESCO World Heritage Site
MaepingChaophraya (WASP-50)7502011Ping River in Thailand
MagorHunor (HAT-P-2)3852007Ancestor of the Magyars in Hungarian mythology
MajritiTitawin (Upsilon Andromedae)441999Muslim astronomer
MakropulosAbsolutno (XO-5)8322008Character in the works of Czech playwright Karel Čapek
MarsSun0Roman equivalent of the Greek god Ares
MastikaGumala (HD 179949)882000“gem/jewel” in Malay (Indonesia, Malasya, Singapore)
MelquíadesMacondo (HD 93083)942005Character from the novel Cien años de soledad by Colombian author Gabriel García Márquez
MercurySun0Roman equivalent of the Greek god Hermes
MeztliTonatiuh (HD 104985)3332003Aztec god of the moon and the night
MintomeItonda (HD 208487)1472004Fang word for a mythical land where a brotherhood of brave men live (Ecuatorial Guinea, Gabon)
MulchatnaNushagak (HD 17156)2552007Mulchatna River in southwestern Alaska
List of planet names that start with M

This list does not include minor planets and planetoids as those are generally just named by using the last name of the person who discovered them.

Find more planet names with the letter:

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