Skip to content
RichseenAtlasSign in

Atlas — the interactive world

M 4.7 - 116 km WSW of Alianza Cristiana, Peru — coordinate stated by United States Geological SurveyM 5.0 - 45 km SSE of Quepos, Costa Rica — coordinate stated by United States Geological SurveyM 5.3 - 126 km WSW of Alianza Cristiana, Peru — coordinate stated by United States Geological SurveyM 4.8 - Mid-Indian Ridge — coordinate stated by United States Geological SurveyM 4.7 - 164 km SSE of Isangel, Vanuatu — coordinate stated by United States Geological SurveyM 4.6 - 24 km E of Rasht, Tajikistan — coordinate stated by United States Geological SurveyM 4.8 - 86 km ESE of Isangel, Vanuatu — coordinate stated by United States Geological SurveyM 4.6 - 295 km WNW of Houma, Tonga — coordinate stated by United States Geological SurveyM 5.1 - 81 km ESE of Isangel, Vanuatu — coordinate stated by United States Geological SurveyM 5.2 - 76 km ESE of Isangel, Vanuatu — coordinate stated by United States Geological SurveyM 4.7 - 139 km NNE of Hihifo, Tonga — coordinate stated by United States Geological SurveyM 4.9 - 97 km NNE of Chitre, Nepal — coordinate stated by United States Geological SurveyM 4.9 - 54 km E of Hihifo, Tonga — coordinate stated by United States Geological SurveyM 5.2 - 123 km NNE of Ruteng, Indonesia — coordinate stated by United States Geological SurveyM 4.5 - 95 km SSW of Severo-Kuril’sk, Russia — coordinate stated by United States Geological SurveyM 4.7 - 62 km WSW of Ollagüe, Chile — coordinate stated by United States Geological SurveyM 5.3 - 26 km NW of Neiafu, Tonga — coordinate stated by United States Geological SurveyM 4.6 - 1 km NNW of Katochí, Greece — coordinate stated by United States Geological SurveyM 5.1 - South Sandwich Islands region — coordinate stated by United States Geological SurveyM 4.7 - 43 km NW of Aroa, Venezuela — coordinate stated by United States Geological SurveyM 5.3 - 51 km NNE of Ruteng, Indonesia — coordinate stated by United States Geological SurveyM 4.6 - 176 km SSE of Vilyuchinsk, Russia — coordinate stated by United States Geological SurveyM 4.5 - south of the Fiji Islands — coordinate stated by United States Geological SurveyM 5.1 - 92 km ESE of Isangel, Vanuatu — coordinate stated by United States Geological SurveyM 4.5 - 129 km ENE of Taltal, Chile — coordinate stated by United States Geological SurveyM 5.5 - southeast of the Loyalty Islands — coordinate stated by United States Geological SurveyM 4.7 - Kermadec Islands region — coordinate stated by United States Geological SurveyM 4.5 - south of the Fiji Islands — coordinate stated by United States Geological SurveyM 5.3 - off the coast of Oregon — coordinate stated by United States Geological SurveyXi'an Stele (Jingjiao / 'Nestorian' Stele)The Luzon StraitThe Strait of MalaccaAhmedabadAksumAlexandriaAntioch on the OrontesBerlinBirminghamBostonBrasíliaBukharaCanberraCanton (historical) — modern GuangzhouCarthageChang'anChicagoConstantinopleCórdobaCuritibaDunhuangGoaHavanaIstanbulJerusalem (Old City)KashgarLisbonLiverpoolLondiniumLondonMalacca (Melaka)ManchesterManilaMarka (Merca), SomaliaMecca (Makkah)MedellínMervMoscowNew OrleansNew York CityParisPotosíRio de JaneiroRomeSamarkandSevilleShanghaiSingaporeTenochtitlanTokyoVladivostokXi'anAmboseli–Tsavo–Kilimanjaro dispersal corridorGulf StreamHumboldt (Peru–Chile) CurrentKuroshioBerlin MarathonBoston MarathonNew York City MarathonTokyo MarathonMetrocable Line K, MedellínBasque (Euskara)MalagasyAustralian Institute of Marine ScienceGreat Barrier Reef Marine Park AuthorityICOMOS (International Council on Monuments and Sites)INPE (Instituto Nacional de Pesquisas Espaciais)International Telecommunication UnionIUCN (International Union for Conservation of Nature)UNESCO (United Nations Educational, Scientific and Cultural Organization)World Health OrganizationAmboseli National ParkChobe National ParkEtosha National ParkHwange National ParkKruger National ParkMaasai Mara National ReserveOkavango DeltaAcapulcoCherbourg — transatlantic roadsteadNew York — Chelsea Piers (Piers 54 and 59)Queenstown (Cobh) — Roche's Point anchorageSouthampton — White Star Dock (Berth 44)Arctic OceanAssamCubaDarjeelingThe Fulda GapWestern Corridor and Grumeti ReservesLabrador SeaThe Moluccas (Maluku Islands)Ngorongoro Conservation Area — Western PlainsNorthern Virginia data-centre corridorOgliastra and the Nuoro highlands, SardiniaOkinawaThe Pontic–Caspian steppeSouthern Serengeti Short-Grass PlainsSouth GeorgiaTaiwanYunnanZambezi RiverThe Mediterranean Sea (Mare Nostrum)Abu Simbel temples (Nubian Monuments from Abu Simbel to Philae)Atacama Large Millimeter/submillimeter ArrayAngkorArabian Oryx Sanctuary, Oman (delisted 2007)Amazon Tall Tower Observatory (ATTO)Baikonur CosmodromeBhadla Solar ParkThe Bornholmer Strasse crossingBorobudurBottaccione Gorge, GubbioThe Broad Street pump, SohoBurgess Shale, Yoho National ParkBurj KhalifaLaunch Complex 41, Cape CanaveralCape Canaveral Space Force StationCape of Good HopeChallenger DeepChartres CathedralCheckpoint CharlieChengjiang fossil site, YunnanChichen ItzaChicxulub impact crater, YucatánChrist the Redeemer, Rio de JaneiroColosseum (Flavian Amphitheatre), RomeCongo Square, New OrleansCosta Rica Thermal DomeCromford MillDenmark Strait SillDrake PassageDresden Elbe Valley (delisted 2009)Dresser Formation, North Pole Dome, PilbaraDSS-43, Canberra Deep Space Communication ComplexDurham CathedralEdiacara Hills, Flinders RangesEko AtlanticEnewetak AtollFairview Lawn Cemetery, HalifaxFortune Head GSSP, NewfoundlandFrancevillian Basin, GabonGalápagos IslandsGalapagos RiftGare de l'Est, ParisGoldstone Deep Space Communications ComplexLaboratori Nazionali del Gran SassoGreat Pyramid of Giza (Pyramid of Khufu)Great Wall of ChinaGrytviken Whaling StationGuiana Space Centre, KourouHadrian's WallHagia Sophia, Constantinople / IstanbulHarland and Wolff shipyard, Queen's Island, BelfastHattusa (Boğazkale)The Heart's Content cable stationHome Insurance Building, ChicagoThe Iron Bridge, CoalbrookdaleIsua supracrustal belt, southwest GreenlandKamioka Observatory, Mozumi mineJohn F. Kennedy Space CenterKilwa KisiwaniKennedy Space Center Launch Complex 39ALanding Zone 1, Cape CanaveralLeptis MagnaLighthouse of Alexandria (the Pharos)LIGO Hanford ObservatoryLIGO Livingston ObservatoryBahia de Loreto National ParkMachu PicchuMadrid Deep Space Communications ComplexMarathon and the Tumulus of the AtheniansMariana TrenchMausoleum at HalicarnassusMcMurdo StationMeeting of the Waters (Encontro das Aguas)Meishan GSSP, Changxing, ZhejiangMogao CavesMoss Landing battery storage complexNevado MismiNuvvuagittuq greenstone belt, NunavikOstia AnticaSite of PalmyraThe Pantheon, RomePetraPhilae temple complex (relocated to Agilkia Island)Pikialasorsuaq (the North Water Polynya)Point ConceptionPont du GardPorthcurno cable stationRaja AmpatBasilica of Saint-DenisSalar de AtacamaSiberian Traps large igneous provinceSimplon TunnelSirkeci Terminal, IstanbulStatue of Zeus at OlympiaStegra green steel plant, BodenTaj MahalTempelhof AirportTemple of Artemis at Ephesus (the Artemision)TimbuktuTitanic wreck siteTreasury of Atreus, MycenaeTurfan oasisThe Valentia Island cable stationParanal Observatory and the GRAVITY interferometerVostok StationWaldschlösschen Bridge, DresdenWhite City StadiumWindsor CastleYaroslavsky Station, MoscowThe Red Sea cable corridorJakartaLagosManausMarseilleNusantaraSongdoKavango–Zambezi Transfrontier Conservation Area (KAZA)Chicago MarathonLondon MarathonAlphaFold Protein Structure DatabaseLagos Blue LineArctic CouncilJet Propulsion LaboratoryNgorongoro Conservation AreaSerengeti National ParkEl Niño–Southern Oscillation (ENSO)ITERJoint European Torus (JET)National Ignition FacilityAnatoliaAntarcticaWeddell SeaBayan Obo mining districtGemini North telescope, MaunakeaKennedy Space Center Launch Complex 39BLiverpool – Maritime Mercantile City (delisted 2021)MakokoNotre-Dame de ParisStonehengeVenice and its Lagoon

Earth · Watch · All time · 60 of 198 subjects drawn · editorial corpus and accepted observations · official source connected

Earththe Moonthe Solar System

Watch

Close ✕
← Everything in this window

The orbit of S2 is shown to precess as general relativity predicts

2020 · Recorded · space

The source states this happened, and its date is not in the future. The word the source used for it is observed.

The GRAVITY collaboration reported that the orbit of S2 does not close: its pericentre advances from orbit to orbit by the amount general relativity predicts for the Schwarzschild geometry. It is the same class of effect as the anomalous precession of Mercury that supported general relativity in 1915, measured in a field vastly stronger, around an object four million times the mass of the Sun. The measurement also constrains any extended mass distribution inside the orbit.

Source
Astronomy and Astrophysics (GRAVITY Collaboration) · GRAVITY Collaboration, Astronomy and Astrophysics 636, L5 (2020)
Standing
This record: partially verified · publisher: partially verified
How it arrived
Editorial — A dated record from the Richseen Atlas editorial corpus, written and cited by a curator. Not captured from anywhere, and not live.
Where
At a canonical Atlas object, placed and checked by a curator.
Subject
OBJECT_S2_STAR · OBJECT_SAGITTARIUS_A_STAR · Paranal Observatory and the GRAVITY interferometer
Read this in Signals ↗

Sources polled — usgs: newest 2026-09-10 · nws: newest 2026-09-10 · jpl-cneos: states no publication time, last reached 2026-09-10 · Official source connected · Basemap: Natural Earth (public domain) — marks are drawn only from sourced coordinates