, humans of Earth have come into contact with a large number of other Earth-like, populated planets. Whilst most planets are shown only once, and then revisited periodically in the background of the show, some planets become key locations in the plot. Examples include the planet
.
Some critics of the show point to the implausibility that 99% of planets encountered are habitable to humans, and are ultimately very similar to Earth. This is in fact an oversight: the Stargates were not scattered randomly, but rather were placed selectively
destinations reachable. In addition, the use of
means that episodes simply do not occur on non-Earthlike planets. Likewise, the reason that most planets are inhabited by humans is that the Stargates were used predominantly by the
for carting humans from Earth to other planets as slaves. Further, it has been stated that the Goa'uld terraformed many new planets over thousands of years to be more habitable for their human slaves.
Some of the planets listed were taken from the cartouche on Abydos, as this was originally the only planet that could be dialled from the earth stargate. However, after visiting the cartouche, the SGC were able to make the correct calculations compensating stellar drift.
The list of planets is separated by the galaxies in which planets are found, as travel tends to be restricted to within one galaxy - the
. Where available, the
designation are included.
designation of the form P0X-000 (M0X-000 is used for moons), where "0" is replaced by a letter or number. "It's based on a binary code the computer uses for extrapolation", according to
").
s without success. However, if the local name of a planet is known then that name is often used in place of the designation.
When dialling a gate, it is important that (within the Milky Way, for the most part) a seventh chevron be encoded - for the point of origin. There are instances where eight chevrons are required - such as dialing distant galaxies, such as
. Additionally, a ninth chevron exists on the Stargate, though its purpose is not yet known.
| Planet | SGC Designation | Stargate Address (Chevron) | Notes |
|---|
| Abydos | P8X-873 | | A planet once under the rule of Ra. The first planet modern humans travelled to via Stargate, it was liberated by Jack O'Neill's company and is the home of Skaara. From Stargate and "Children of the Gods". |
| Altair | P3X-989 | Harlan's homeworld. Seen in "Tin Man" and mentioned in "Double Jeopardy". |
| Alpha Site | 1st: P3X-984, 3rd: P4X-650 | 1st: | A designation for a previously uninhabited world (now a military base) set up in case Earth (or any other Tau'ri-controlled world) has to be evacuated. (SGC designations from "The Serpent's Lair" and "Covenant"). Coordinates for first Alpha Site same as alternate reality Beta Site. |
| Apophis' homeworld | |
| Ardena | New homeworld of the surviving Talthuns. |
| Argos | P3X-8596 | | Home to the Argosians. |
| Aschen | P4C-970 | Home to the Aschen. Locked out of the SGC's dialing computer at the end of "2010" and critical to the plot of its sequel, "2001". |
| Beta Site | P3X-984 | | Evacuation site for Earth in the alternate timeline visited by Daniel. |
| Black hole planet | P3W-451 | | Part of a binary system, life on the planet became recently extinct prior to SG-10's arrival due to one of its stars collapsing into a black hole. Seen in the episode "A Matter of Time" and a key component in "Exodus". |
| BP6-3Q1 | Planet of the giant bugs that infested Teal'c. |
| Camelot | PX1-767 | | Planet where the Ancient Merlin originally hid the Holy Grail. |
| Cartago | P3X-1279 | In "Cor-ai", Teal'c was made to stand trial by the Byrsa for previous crimes he had committed while serving Apophis. |
| Castiana / Taoth Vaclarush | | One of the two possible locations for Merlin's Ori weapon. |
| Cimmeria | P3X-974 | | A planet under the Asgard protected planets treaty. |
| Chulak | | The homeworld of the Jaffa, like Teal'c. |
| Dakara | Home of an Ancient superweapon. Capital of the new Jaffa Nation. |
| Delmak | Delmak was the homeworld of Sokar and, later, of Apophis. The few scenes on Delmak suggest that it is industrialized. The name literally means "Crystal" in Goa'uld, though why the planet has this name is uncertain. |
| Earth | None |
| Homeworld of the Tau'ri and location of |
| Edora | P5C-768 | | Homeworld of the Edorans. |
| Enkaran homeworld | none | no Stargate | A small group of Enkarans whose ancestors had been captured and relocated by the Goa'uld were returned here by the Gadmeer terraformer ship. |
| Erebus | | World where Ha'tak ships were built by captured Jaffa. |
| Euronda | | Euronda is home to the Eurondans and the Breeders. The Eurondans multiply by cloning, where as the breeders sexually reproduce. The Planet after many years of battles between the two races has become a barren land. The Eurondans hoping to kill the breeders, poisoned the atmosphere and went underground, and since then the two have fought for control of the planet and to eliminate each other. |
| Gadmeer homeworld | P53-381 | Intended as a permanent home for a group of Enkarans rescued by SG-1, |
| Hak'tyl | Homeworld of the female Jaffa led by Ishta. |
| Hanka | P8X-987 | | Cassandra's homeworld. |
| Hebridan | Not applicable; no Stargate; however, one may have been transported later. | Homeworld of the Hebridans. |
| Heliopolis | PB2-908 | | The planet where Dr. Ernest Littlefield was trapped for 50 years. Contains a database of knowledge from the Ancients, the Asgard, the Furlings, and the Nox. Currently inaccessible by Stargate. |
| Juna | P3X-729 | | Used to be under Heru-ur's control. Liberated by SG-1. Taken over again by Cronus and liberated by SG-1 and their robotic counterparts again in "Double Jeopardy". |
| K'Tau | P39-865 | | Asgard protected planet, protected by the Asgard Freyr. |
| Kheb | | Home to the Ancient Oma Desala. |
| Kresh'ta | A planet where Teal'c and Bra'tac were ambushed by the Goa'uld System Lords. |
| KS7-535 | Frozen planet where Col. Carter sent Anubis in Colonel Alexi Vaselov's body. |
| Land of Light | P3X-797 | | Planet which often took in refugees for the SGC. |
| Langara | P2S-4C3 | | Homeworld of Jonas Quinn. |
| M4C-862 | Off-world base in "Prodigy". |
| Madrona | Homeworld of the Madronans. |
| Martin's planet | B30-255 | |
| Nasya | Homeworld of the Nasyans; the planet where Jolinar of the Tok'ra was hiding from the Goa'uld when was forced to take Samantha Carter as a host to escape. |
| Oannes | P3X-866 | | Homeworld of an amphibious race known as the Oannes. It is a watery planet, with small valcanic pockets around. |
| Off-world base | | Was the off-world base for the NID agents whom stole alien technology and reverse-engineered it and sent the plans back to Col. Maybourne on Earth via a Goa'uld long range communications device. |
| Orban | | Homeworld of the Orbanians. |
| Pangar | Homeworld of the Pangarans. |
| P2A-347 | The planet a Talthusian spaceship crashed on "Lifeboat". |
| P2A-870 | World the Stargate jumped to after disconnecting from the black hole planet (P3W-451). Carter disconnected from that address without incident. |
| P2X-416 | | Home of the Bedrosians and the Optricans. |
| P2X-555 | | Intended destination of SG-1 in the episode "1969" |
| P3-575 | One of the first two planets (the other is P3A-577) mentioned by SGC designations, recommended by Captain Carter's team as possible destinations for SG-1 & SG-2's first mission, performed concurrently. Initially assigned as Major Kawalsky's first command, O'Neill's team gets it after the events of "The Enemy Within". |
| P3A-577 | Planet mentioned as a possible destination for SG-1's first mission. (See P3-575 and "The Enemy Within") |
| P3R-233 | | Also known as P3X-233, its inhabitants brought the Quantum Mirror home from their travels. Their civilization was destroyed by the Goa'uld, but not before they broadcast the warning "Beware the destroyers. They come from ", which turned out to be Klorel's ship. |
| P3S-452 | A Goa'uld controlled planet General Bauer ordered Naquadah extracted from. |
| P3X-116 | | planet where Teal'c got his revenge by killing Tanith who murdered his lover Shaun'ac. |
| P3X-118 | | Planet where the "Foothold" invasion originated from. Locked out of the SGC's dialing computer at episode's end. |
| P3X-439 | The planet where Col. Jack O'Neill got the Repository of the Ancients downloaded to his brain for a second time. |
| P3X-584 | | The planet on which SG-1 found a human clone of Anubis as well as a second DNA Resequencer. |
| P3X-888 | | Homeworld of the Goa'uld and the Unas. Archaeological survey by Dr. Daniel Jackson and SG-11. |
| P3Y-229 | Location of the Battle of P3Y-229, which was the first Ori incursion into the Milky Way Galaxy. |
| P4X-639 | The planet where the Ancient time device was located. |
| P5C-353 | Planet of the "Orb aliens". |
| P7X-377 | Homeworld of the Giant Aliens. |
| P8X-873 | The planet to which Amonet brought captured Abydonians. It was on this planet that she was killed. |
| P9C-372 | |
| P9X-391 | | A planet where a science outpost of the Ancients was located. SG-1 found a device there which allowed people to see creatures of another dimension. |
| PB5-926 | | Whilst waiting for the Tok'ra on the planet, SG-1 are shocked to see Apophis's deathglider crash land on the planet, where he asks for his help. |
| Proclarush Taonas | | Where SG-1 found its first Zero Point Module. |
| Retalia | Homeworld of the Re'tu. |
| Revanna | Primary base for the Tok'ra, attacked by Lord Zipacna unders orders from Anubis in "Summit"/"Last Stand". |
| Rogue base | |
| Sahal / Valos Cor | | One of the two possible locations for Merlin's Ori weapon. |
| Serita | | | A planet in the original Tollan solar system whose inhabitants destroyed themselves with Tollan techonology. (Never actually seen) |
| Tartarus | Homeworld of the Kull Warriors. |
| Desert Tok'ra base | P34-353J | |
| Talthus | Original homeworld of the Talthuns. |
| Tobin | Homeworld of the extinct Tobin. |
| Tollan | P3X-775 | The original homeworld of the Tollan. After the destruction of Serita, a neighboring inhabited planet, Tollan's orbital shift rendered it uninhabitable. Consequently, the Tollan people were forced to evacuate to a new homeworld, Tollana, while their homeworld suffered massive volcanic destruction. |
| Tollana | | The second homeworld of the Tollan until their destruction, it did not have a Stargate until the Tollan built one. |
| Unity's planet | P3X-562 | | The planet which SG-1 discovered a race of living crystals who could take the form of an individual but were destroyed by the Goa'uld |
| Urgo's Planet | P4X-884 | | Planet where SG-1 encountered the alien artificial intelligence named Urgo. |
| Velona | P3X-636 | Home to the Ancient Orlin. |
| Volia | P3A-194 | | Homeworld of the Volian Union. Most of their population was sterilized by the Aschen and the planet's surface converted to farmland. |
| Vorash | Previously the site of a Tok'ra base. It was destroyed when the Tok'ra used the Stargate, while connected to a black hole, to cause the nearby star to go supernova. ("The Tok'ra" through "Exodus", and various Tok'ra episodes in-between) |
| Vyus | Homeworld of the Vyans. |
| Planet | SGC Designation | Stargate Address | Notes |
|---|
| Athos | | | Homeworld of the Athosians, and the first planet visited by the Atlantis expedition. |
| Atlantis/Lantea | | pixelwidth=16|openbracket=|closebracket=}}
| > Transcript See conversation starting with "FORD: You know we still haven't named the planet yet..." ) Great City of the Ancients where an expedition led by Dr. Weir was sent. |
| Ballkan | | | A Middle Ages-level human civilization the Athosians trade with. |
| Barren wasteland | M4X-337 | | Planet where an energy creature was sent. |
| Belsa | | | A planet where some Satedan survivors went. |
| Dagan | | | An old Atlantis outpost, now inhabited by a group of religious zealots. |
| Genii planet | | pixelwidth=16|openbracket=|closebracket=}} | Homeworld of the Genii. |
| Hoff | | | Homeworld of the Hoffan. |
| Lucius' Planet | Homeworld of Lucius Luvin. |
| Manaria | | | A planet where some Satedan survivors went. |
| M3R-428 | | A planet Sheppard's team found an unused space Stargate orbitting around. |
| M6R-867 | | A planet used when the Genii captured Sheppard, McKay and several marines. |
| M7G-677 | | A planet inhabited by children. |
| M8R-1229 | | A planet with an ice-covered ocean. |
| Olesia | | | Homeworld of the Olesian. |
| P3M-736 | | The world where Ronon Dex first captured Sheppard and Teyla Emmagan. |
| Sateda | | | Homeworld of Ronon Dex. The Satedans had an advanced technological civilization with large cities and energy weapons. They met the fate of all advanced civilizations in the Pegasus Galaxy when they were attacked and apparently destroyed some time around 1998 by the Wraith. About 300 Satedans managed to make it to shelters west of the capital, and were later able to escape to planets such as Balkan and Manaria. Working name: Atteria. |
| Taranis | | | A world where the Stargate was located in the caldera of a volcano, along with an Ancient facility with a geothermal energy source powering its shield. Half a continent destroyed by said volcano's explosion. |
Stargates not situated on planets.
