Added by 8of5

Riat was a planet, at least part of which consisted of a snowy mountainous region. Riat's star suffered high levels of solar flare activity which effected sensors of ships near the planet and washed the world with radiation.

The planet was home to at least one Dracon monastery. In 2369 the monastery’s water supply had been infected by an algae which had been mutated by the solar flare radiation, when the monks consumed the water it induced a mutation in them, making them violent and possibly cannibalistic.

In that year the solar flare forced the shuttlecraft Goddard, containing Geordi La Forge, Worf, and Ro Laren, to drop out of warp and crash-land on Riat, near the monastery. The stranded crew made their way to the monastery where they soon came under attack by the monks. When the USS Enterprise arrived to retrieve the shuttle crew they also administered a cure to the monks infection. (TNG comic: "Light of the Day")

Planets visited by the USS Enterprise-D
2364	Earth • Deneb IV • Archaria III • Ligon II • Styris IV • Omicron Theta • Gamma Tauri IV • Delphi Ardu IV • Peacekeepers' World • Parliament • Rubicun III • Quadra Sigma III • Haven • Torona IV • Angel I • Starbase 74 planet • Bynaus • Tigan VII • Syntagus Theluv • Tarod IX • Faltos • Persephone V • Mordan IV • Aldea • Velara III • Relva VII • Minos • Treva • Vagra II • Ornara • Brekka • Vandor IV • Sarona VIII • Dytallix B
2365	'audet IX • Tenara • Epsilon Miranda V • DQN 1196 • Raimon • Feenix-Denn IV • Himalias V • Thiopa • Gravesworld • Ramatis III • Solais V • Gagarin IV • Elysia • Iconia • Pacifica • Bringloid V • Mariposa • Drema IV
2366	Kavis Alpha IV • Tau Cygna V • Galorndon Core • Acamar III • Orelious IX • Bre'el IV • Cassiopeia Delta VII • Archer IV • Betazed • Vulcan • Rutia IV • Jouret IV
2367	Saturn • Earth • Turkana IV • Camus II • Tagus III • Adelphous IV • Evadne IV • Qo'noS
2368	Qo'noS • El-Adrel IV • Valo I • Valo II • Qualor II • Vulcan • Galorndon Core • Hermeticus II • Votar VII • Sindar • Tessen III • Rajatha Prime • Earth
2369	Frigis • Hobson Delta II • Bajor • Eloh • Riat • Atrea IV • Nervala IV • Enoch VII • Earth
2370	Terrellian crashsite world • Marijne VII • K'Trall • Dessica II • Barradas III • Calder II • Vulcan • Kesprytt III • Enoch VII • Dyson Sphere • Hera • Atrea IV • Vacca VI • Dorvan V • Hera • Krantin • Syng II • Earth
2371	Sindikash • Thanet • Ntignano • Damiano • Veridian III