Hubble Asteroid Hunter

We would would like to thank the amazing work of our Zooniverse volunteers
The list below acknowledges the contributions of individual users who provided more than 100 classifications.

Abe-Hoekstra, Franz152, ssh, c_cld, twtunes, Dolorous_Edd, BLGoodwin, maksymw, Franzz152, Gunther_Roth, SearcherPG, Magda1ena, EEZuidema, KeithK, Sovanacharya, eperozzi, Nomad_Purple, sandorkruk, nilium, Domenico943, hermesp, Mr_Red, nerderello1957, Enceladusmoon, jdulak, azalucha, cstrauss31, amanjoe, aussiegoodstuff, Henri-Levich, ARTUROnunez, 7475, leonie_van_vliet, MGriffin19, voyager168, jacarah, canopus228, Heinz01199882, aceloustic, andsul, ElisabethB, allenout, planetari7, G.Roddenberry, Craigriach, graham_d, adam_derdzikowski, dennispattensr, USSR_Mike, astronomicom1, SaraGR, highc51239, DavidMitchell, eagleeyes1953, fayemduncan, maheitk, libad, southstar33, GPR, Chriscav, agbenson, butterosborne, AUK, goldenskates, Alicegem, MDahmani, SlickString, mat_sch, iJoshuaTree, ShyBay, jjarabek71, sailorshaw, twisdom31, nmontez55, mitch, Turan9510, Sullivan-Shaw, mf-nigreen, CynicalStranger, jf0000, konakid, Meanjean4321, Enzo_F, giodon, rachelhelper, Mala61, arianna99, dga, Emmental, ktitos, Fauxwise, Zagger10, mpc952, Seregedhel, Tmit2, Dezza7, storres95, Lachie_D, ashley.pillay2, m.franco, Cat12, Taylorhose, FraPla, qcservice_runweiwang, Bonebiddy, hologramix, Siddharth1, jeremym0101, SegaOX, Khoolwhip26, ntime60, R_Ryan, Dieguinspdz, vjgp, Busterc48, rhumb, Edds, HopefulYeti, Cosmic_Jerk, dramlee, thorsteinn, Stinger3000, Brietterick, Pochero, ruprechtludwig, Missybee35, PhillipaHazel, allisonn92, densi, Kingskerswell, Beardmanjug12, THOMAS70, OneTexan, lenka_cizkova, marius_aga, villi, Betelgeuse54, LEGI8N, Sagittarius48, Macne, AxelGablier, AsteroidfinderfromOrel, GAL1LE0, Mww_03, LeeYumw, Melina_t, michaelkwon, eamic, FilipExplorer, Bootlegger, BeLeal15, Winter-M, soulful67, cmirites, fatpossum, EricGill, lekshmy, KSparx, AlanNeedham, Uppotukki, Mariod.dbf, jjossy, rosemarybillington, MIIBII, KKFitrakis, PhenixFeather, marijoostric, cepheidz, gorelayaz, HaroldL, cheradi, YvesClement, SeanMcV, BrunoB, dabusch, UserSteve, aKobold, elmurcis3, rdlustri, Jmcallister57, Mendeleiev, Travaglino, akimble68, Alexandraroxana08, fouriertenn, 20acreteau, deanjackson, HarveyDavies, Keanan21, cdp363, enjoy86, Hemiunu74, Niebieska, Alisonrodger, SimpsonM, petyerakne, Aneuploid53, sykesbb516, GLavender, Afterburner1962, J.wu, Yoshihiro, liliana.salgadoc, Lepii, meowinghard, scmorris99, thetpaiva, K0S, Ezor, Oldmoe15, suemcdh, steeve, Jeremy_Langley, dabiggreenbus, janestephens, PlainSkeptic, fkrumrie, JKD, TanyaKup, kovic-1, RedMons, dalquizaleth, Mauro75, CarmenMartins, externus, aboyd7745, kenyandall, curious_dv, Stevel54, Alexanderrt, Pacerman, Gina_, Prothon, PraneilBisesar, Jose_Campos, Jungl3Jim, Tessafranco, locodave, jiipee, TonyRamis, Jaydentor, birdbrain47, smokyfox, LifeSVR, Greeting, Sonjadup, Soltere11, Marcin0, mlfernandes1562, agfer, Thomasda26, headcleaver, Polaris74FR, germanolira, Lillianagates, mendocinosunrise, HawkMedic, jsrchrt, anikavirmani, DesseFrem, paLLadium2, russell.slaymaker, VDNKh, MaddKatt, lloyd123, Bethany65000, simateix, Cassiopee13, danstjohn, Mtfd2222, kbrown499, Teniom, rafal66, fabianatis, Fredosaurus3000, Snazzybag7, cj_stewart, xKabaLx, ellisbl, Untyx, taychan, Katahol, Particle37, jhonny_esquivel, pinkat, JaneGrylls, swzp, bert_willard, JuliaBrazolim, Rot, cameron.zagami, JeanNimes, Mal64, mdydasco1220, Rkstar, IanHanby, Ed-gar, olmarriage, analia, dianasgoncalves, WEBs_in_space, VVixen, Batteux, Evening_y, dlegend-d, modica1, jacrypto, pascual_pedy_louie, shootingjr, FantomSky, BRutherford, MariuszTarkawian, jamesbigears, Tatsunori, Grafova, deana_gee, Elena_Butenko, radek45, jerome.jh, Dana.Dhaen, missmonkey, insert_name, KYGalaxyGuy, Lacadie, UNUM, thiotes, OlEnglish, Amadera28, NitayA, MilindoX, jdt59, Vladilen, Huntress28, BjuneJ, quez, sombrero31, barrett.anna, Crumplebee, Oppy, Theguyyousaw, Wounded_Knee, scottjdunn, Lithium7, cefenwick, franjo03, MaudScientist, 11th_dimension, BTCamden, sciencepeter, spceoddity, yancy16, Quarkgc, Woody59, Mimomu, Flix_ERNEST, djohnson, polanski, Mebovic, RogerOne, OhErni, den40, Kellybird82, drogerstx, carleemarkle, cszuter, moonjxnnie, tcm56, Franjo_Josip, Corentin.Debacker, Liquid-state, Willitte, mflowers28, Hill_Boys, Specify_jai, metsys, aaniss, bneste, LaurentC, thcc, Pvolcan, alyssaswan19, Ind, Welsh_McKenzie_Arthur, PaSmith, morticia365, robertmartin, Cautator, Kalrodik, bradley51, shotguna, Tabitha-Anne, Enkitol, Astronut7821, beccapanda, lexi.reno, islandert, katrinapoly, jvo1, WernerLombaard, jetjet, dannyquist, danielcollado75, Martin_Sch, williamaskew, x-o, MelFresh, Dinosson, spsam, xplaner5, Laurie.76, Marty_wise, RobKnight, DrDanEdgcumbe, LesleyDL, AlphaOphiuchi, ULISSE2020, trendsta, fpailler, Lidiakh, Smegnar, fha53, smfarrell, hwerner29, wclatham, juum, keeps2013, atmega8, Ehoward3, salmamohamud, GioMa, Ewander, lsalcido, Radek923, MaxImilianH, mamahite, asdfghiw, starbug15, CSmith1520, HakanBakan, JordanS, bouzouk, Rienzi, aw1492, Billyvanilla496, Alex_Dsm, Xaeque, BlaineU, Binho, Arcadia1, markhero, cici-a, goulda7, pierrecroizet, MelvinoBianco, justalan, ine, summergirl492, maddy5640, NitroJC, CarolynBr, Mozgonus, VyacheslavErmakov, mitchell1963, petran217, xopek, Nu-z-Gliwic, astedman143, Deneb2020, ChrisEgnot, student69, riyapatel471, KSeleny, satis_ignotus, stpierre1950, tonyh0905, Ausdennis, Tigertigerburningbright, BurstCEO, T118, angelabcomics, gedeline1997, TModesto, Ady87, dwa123, Jpatermo55, iyonel, Theresacaven, Oaksl, Cevize, heidi_marie, hossein.chalaki, SavageCritter, Babelayala, AlexandreLamothe, dromeo, sadieriv, jpmullen, Jaredsullivan46, Dr_Wayne, ALEXANDERDYE, Dannemarie, daniel.awar, MickyVancurly, Nata04, brycejame8, AK_Gesith, kimzzooo, Awachowicz, SESNRETS, ZCCZe, AlexisMC1, alien00785, QuantumSymphonic, iceni2, Orlaav, Denny2507, AdityaJagdale, vena, RyanQuist, SESdranoel, velthove, Abril.Nataly.Calatayud, Br4dbr, tanya.ovramenko, archives, Paul-at-Monbulk, Randomandy947, ArjavJ, aspringer, bjewel6, MartinMcG, qcservice_Sandragil, Nikik67, stellarjay, alinefornear, laurensong1234, hmsteinbach, Varun_shankar_04, dcook168, aivilrosstr, AkiraKamiya, rbr98, tbandy72, ema333, DChrisZ, SayNoToKoolaide, jeppe1996, anatomyofasmile, lahr9619, jimer02, SES_Nottirb, MarionNegus, manstanmore, DaveSidaway, katbaran, NiuNiu_3BB, Tane, Tyler_Le, Durant231, Arhitektor, Sabinus, Gachassin, madhavkvekm, MarieangeG, Stubbik, Pauloche, AshbyBirdman, Stitch26, RahWo, zeevr, Technohell, cellbiol, Sydney159, evan.thompson, Spacevine, lanietisbe, vanrock70, ali.mourtada01, penagored, TaxiCab1729, meleont, Taal65, Shqipe, prisciaatin, cda83, Thomas11, AshleyTan, rnairn, CommanderShepard2154, VictorGBurmistrov, lisa.shaw85, wolfpaw1972, Leilaggibson, Sumerky, peterpossum, stardust2357, ctowl, PigishPops, Jackhedge, Jude2005, Fredman, StoleYoBike, OzFox, chunkyfellow, sirfitz, JulieMontoya, alinab.stefanescu, photomark, ecashel, TiaGabbott, QuarknTowel, Mateuszdziki, lysandra, rafael_moro_aguilar, Peppe87, clearassmud, Ngl28, jsilv24, Joysingha85, NAGALKA, JadMounayer, ghf20, bmill, Burakakgun, victor80, Galactic_Wanderer, Gromit256, Bosh, patercla, Hawlaska, TheScrud, neerajkns, Jared_Stege, Cracker351, Aniaya23, kelly77, searover98, kbulusu, ElcoVlag, JonathanF, lindsayf22, brendlingerw, AtomicHeart, yeslyv, fdu22, astro0909, jg1026771, eskendoes, Fiorellify, katyannj1329, MM58484, Fladdy, fanou51, WillEGee, Diracstein, Eaglewingfws, Etil, planetaryscience, Olliepetch_, ModibQadir, Mickp18, KarenEllis, THIRTYFATHOMGRAVE, SofiaV, Wedgeaub, Unser_Kosmos, ory123, nsaraiva, Najlaabdallah, Gistar, Henrod, cheki, SESkcidrub, Simranjit13, Hoser, Altrmike, MrsTrainkiln, IvanAlegria, Pierre-Thomas, Ischa_Van_Reusel, Athomp16, PhilippeCouche, MatteBike, SirStixxy, JMLad, DanielTaylor, hoddy, KeplersThirdLaw, szervo77, Liverpooldave, briandotnet, sara.rahmoun, OstadA, Zizzuz, agavey, Maryambabaki, Terra-Luna, khaled.abouelnaja, mattjensen, owyx, dreaming.s, Mike_Snell, Gaudie, Perceo, kirti02, WTR25, tommy.scherer, Chrisjohndj, Howkes, kaseyburton87, sam.simpson117, dodo2401, shio6520, elisad, NeveA, Liset, MelvinG, Long0, spaceball1, argeens, Thorfine74, riiibu, BGiacomo, kate.parker, virluxor, ayplugwalk, SeveOxbotty, Mshall7722, Krova, mgemici2015, rakefetnitzani, ransonmsa, jschulz99, Ionepositivo, Aleksandr0652, charliev01, fnogal, AneeP, GalacticRaven, baotic, alphamoonbase, belac, Munchco, Bluecomet18, KianM, ianthemac, Frenchspacefan, russ1, katiejw, silviudr, Stancer81, daniellamanicone, Sunpriat, Santanu_basu, Elmoroz, Pizzacutter12, nimis, annalisag, cory.jones, iliyanz, Vica_, sarah_jk, Pernodi, hameer, anthony.landolfi, Semajy, hvance5506, mynightmare1, cjrussell, WolfLvef05, GrahamGFree, baltejas, ClementS, usbek, Reece13, Jedijoe10, Michael_B, chumakov, katkra, Emilhyann, kumofly, Ethan_Woo, B.W., Koyomin, karleng, bmerin, daysarah, samtarani, CristiCrive, fifiritka, djokara, OpaDon, Jell56, RuralTechie, Torsten_O, connorpiper, Merlin_Enfumeur, aaelkins, Julien59, Val186, jennifermarydaws, elimax, Yayounette, SergB, AuRora7283, kmurphy81, superakoko, iSci123, Roundspear, ThomasVI, Dettweiler42, Schnuffeline, Mars-Man, Juanfe, OutWardPluto, MahmoudNakib, Yaroshchuk, MichaelCfffg, Wiktorz, Alainne, juantxo, justjennifer, wiffen, Baptiste77910, nstumpf, Timmy_Harvey, Eduardoschabarum, Xfusion201, BarabasSz, j.hood, Tyk_Tok, linearitysf1, fuzznutz101, Will.martin26, Peter.G, Colwynne, EnacheLucian, markderudder, ljo83, doriaaa123, aldude52, astronat, CAN1958, MNMetman, JPKamin, chaumier, Cyanash, rjaj83, Jelke, hannah.Atchison, scr80, shinobi.kitty, Juliof23, mrpsb, beardiepaw, mtburry, Agatao, Papa-Joe, tomburgerpie, SunRiseAlbedo, gpwomack, t.junker, JerryRocs, Sargy, Yuval_Amit, Y2D2, m.giesbergen, Therealhectorsoto, Murray_Astronomy, towthelion, ferlin1998, Lichtecho, Theo_M, Nyra166, dc4461, HASHER, bigdinosaur, renikun, sarahjstage, Leahnurse, maddendd, Legoteenb, zeepzanfloorp, SolarSloth, Dom_, gacossey, FadiSrour, tarekshammaa, aliskayneh, hier-bin-ich, CDust, antoniszervas, eliasafy, xerthel, WearsClaw, mikeerys, xiansho, Gerardino, orits, JoeM79, C-hadley, Aneek85, LibbieThayne, flora_wang, Sonjas, Petzy, andradadobre, kdo55, Yon_abril, Cevelyn, RobertBuckalew, tl082710, fluffycheeseball, Ozzi8, Philippe001, march, NodalChilblain, mitsuch, jekaskalpel, CreekObse, MorganGellert, Al82, seseloot, itshardtoread, unajmi, ceebee27, gmiellipsis, jwhoag, TessaWeiss, MaxJj1, BalsamGH, chatcher99, himanshujoshi, blackholes4096, Curious28, EVdovin, cwilker, DylanDenteh, crodr03, pmoskal, Rachel_Dye, Angel_V, grantology, SpookyJM, Gagenavyseal82, Ralright, lindsey5656_, MaksimovK, NathanAmbrogio, Ismaeltr, klanders99, Maddalena, Ash6003516, cedricb91, j.ferrell, Bangers_n_Mash, gmb119, skautist, Django123, Raunaquin, Tarinne, adather, Lobstah, citlalin, Tazius, jess77, alexandras1, ndstr, aleeciasy, NateSchmidt, Foxy_Raccoon, justin13, Patafouette, explor3r, bristolfh, FatimaZapata, Xenomorph_Gary, BriceL, bbr56, PlatinumDream, Pat_Roque, hevLeb, BYM, ConorHenderson, TheTacticalL, renastro, OooortCloud, phlextro, Samoha, eligh, Wbwaf, rezoloot, saulsebrook, carolinad, tiffanyho, Robertknight, Golem-xiv, Potatosandmece, mcconnor82, Suse13, Til_W, robertini, Jokerdu13, john_murrell, Marshall23, lexyt, WTRSTO, raprinslow, jbattle0510, venatrix, AKStarGazer, roxfar, Lportante, kleppine, ishikagoyal, John1066, tcblackwell, mshann24, astro_meg, Amarytha, GF2017, Callysta, Robb-e, dzejkob, fulon, PhatBaguette, 23MARTA, astronomermike, nonia22, schaefja, blobvispis, Borvo, rcockrill, Vlades_Gorbynko, Catalyst.Juno, Farsider, DylanRab, GregorSchnix, Vaelia, macewene, Pukislav, amoreho3, eeva_k, Noharrr, sharqua, z-bob, ghadyzeghondy, Alamandian, Markjd_uk, AggressiveBadger, clevenab, cmanu, Swiveleyes, wildlifegrannie, Sanduleak, CooperRbts, Adamowski, al5464, ojaywilliams, AjayK, Bozkurt, Bradshaw15r, YuKar, nathancbell, I_Maggot_Brain_I, Rinse, kasup92, astrutter27, johnrfd, AgentQ, dblancoSF, GuaranteedIrish, Dradigk, feldaycave, Haraldmerck, ThomasP44, Bern1, LRobienczak, jsmci, icelightning777, juliejo, Ernie0318, ellieoban, Ssunpreetsingh9181, Momi_, tsollowen, AstroMisha, chris_murkin, arlanmcjr, Jardy57, JHak54, coolbob74, Helix9, Stefan209, glherring, PLANEThunter_12345, MMadeira, jumpy26, mario_ivan, manonvanzyl, Robinbh, Ravipulle, mkulueke, Ausmedic80, jacobsamuels1, Jean-Noel, dgiorda, Palepa, Warren_BC, DHammy, yves.elhachem, AlexandraD16000, Kscanlan, mattkw97, Stevibaby, triccare, carol_tye, RobbieA, Elenola, brooke.hoese, Victoria.Wilkie, hasmodius, hannes2409, DragonflyAPL, FoxNerdSaysMoo, Nick_Jordan, MikeFarm, LMHopkins, ccha331, Blacklow, Gab_gllm, Angel233, Mrs_Wyllie, OrenJY, Baffies, tamaragiblon, ProximaCentauri_B, R1chardTM, MERENS, Rideout1234567891011121314151617181920, robbel, Cole_Ford43, TrinityQ, NaiSaade, Benswayzemsu, zjenkins24, KistM, gregger7, velezl18, clearitahaddad, Riker-966, scubado, smgs, CP84, ally_campbell, Zueljin, ImanGangeh, geosmin_, nir174ind, cyrah, asm200, Murph42, Artemis_PKU, Tooshada, Chaotic.Behaviour, JTucker314, Davidyang, Danny252, ugodepayens, jnl0008, muras, Baeza34, TheNickEvans, CrazyNine, LeMelon, AlbericM, jacey_fulks, julien.abifadel, bhumphr3, khambali, bmuschlitz07, ericacain, kakriainen, lhawkins6, TimB7, gdb1, Xizes333, pkletti, brookeclaus, Rille54, arca9, b3rn, HannahS., Calottina, Vulcan99, trevor_lin3, AuroraBorealis13, Jimmy88, Chaaru, FalaHomma, subsonicdan, Flickz, eliaspratt, Trailblazer58, danismag, NovakinSsj, anis.elzbeidy, SRVerwey, CarterWalpe, kovacks20, caroline_raymond, Mike_Tunstall, danie349, aniedzialek, mjacqu7, egaytan01, miltontheguy, YukiKaplan, ChaiTea88, zackpow, caitlinnewton, sophiaiorio1, mrfreon, Fredy09, Skollakh, nautilan, NEWMAGICWAND, ajv205, maxwell.cotter, Pdor, Nariosyra, nrobinson, Coven370, Mario.R.Araujo, Heidi123, RedDragnLady, serafin88, Cadman9, Hopperr, marekjk, MiaV, andrewlloyd23, Hgilbert3954, marvinmars63, sandman1342, EYumurta, agelodipetta, ryand00, IAmJackWill, Nuthatch85, KatKacix, kingbo37, FarazH, Jwalia4965, Gregwilkins, teddywroblewski, bmesnard, dk812, El-Hassan_ahmed, cbaccino, merkosh, christopher.maybury, lauren.duffy4, Fjorg, Mjbustos, YentzReynolds56, VicS99, Astromarchi, rosi_k, Jameyensef, norena, richardives818sfv, rachelt, fabianfierro, Brads247, carlee.jones, aqu28, jennyjuniper, STinoco, sylviahung, jkpeter, OllieCD, LehmannPeggy, shadowmaster21, mat93, IvanaAST200, H3lly, dzoana, MarcEG, EveWalter, Dawn261, Texalot, yoel561, WangKejun, EthanGados, amethystbarnes, Eudoric, deadalus95, 06r2d206, drewbola, LPalmer123, Nickyg7, analogue, mcbridep, iliagharios, Waloorts, Massaraksch, hrichart, marydaf, esw38, coledeluca, Shouldve_Gone_2_Specsavers, Atfennelly, HappySpleen, Rudyj, lynn2704, oakfan641, mchipley, Samtheman06, DrCarmel, AIDANCHANDLEE, aliyevalola, Keith100, Eleanordyson, CXKNMSL, Layil, MvMendonca, MarcTawk, HarpiaLC, bensnyder, JGonzalez21, Allielorraine, Sonia_B, cpeveto, AJuicyOne, Lennaft, jcoykendall, DzikiAlonzo, drajmin, majormajor33, domlebarde, BohemianRhapsody4931, i_anna, andres.cespedes, lillian27, dsong68, karlkoch, bbirman, StephenRadice, Starhunter1967, ryenne.bishop, LeonBian, Wyatt1212, dominiccarrera, Jeremie.C, BlackViking442, ARClov, karar, Waterfall, MarKij, Brianna_Liz, elmitch, JoeNelson, TimothyCatron, brightoner, balexan, CS0607, McPlaid, modEus.

We would also like to thank the users who contributed specifically to satellite classifications:

-Ricky-, -sylvia-, 005QuaKs, 08581245480, 20072319, 2013jkfan, 20aosbor, 7475, ACTkatylerg, AMorFM, AUK, Abe-Hoekstra, ActionPeafowl, Adamowski, Adamtyler, Ady87, AggressiveBadger, Ahlir, AmateurScientist10, AmayaRose, AnishaB1, AnnaPla, AnnabellaH200, Ari_Night, ArisM, Arka_813, Astro_maa, Astronomy., BLGoodwin, Bawan004, Bear921, Beena, Begariteja, Big_Papi_Clint, Binho, Booiemonster, Boowoanu, CAN1958, Cadaver_07, Cameron-Griffith, Caspastro, Ceci645, Cephid, Clarsen, Comet-X-Wing-Destroyer, Coralbell, Cosmic_Jerk, Crafedog2, CynthiaPaulino, DChrisZ, DJ_StL, DM2016, DanPalzz, Dansky1, DaringD5, David372, David_Bloomberg_GDDM, Davidrfloyd, Deab, Demonartis, Denny2507, DeweyGoo, Donfp1rockland, Doodlebob1, Dr_Draig, EEZuidema, Ebazzo, Edeno, EgullEyes, ElcoVlag, Elijee, ElisabethB, EllenDoyle, Elohist144000, Elyne, Emma.Boland, EmmaKPrice, Enceladusmoon, EntWyfe, Eremaddo, Ernest2008, F11ksx, FATIMA_ITABORAI, Falconet, Felipe100, Filippoo, Fladdy, ForzaBattlefiel, FraPla, FrancisLG, Gabriellynsc, GammaCygni, GeorgeAlexakis97, Get2david, Gnash, GrungleTV, H.W.E., Hansjo, Hawking44, HemantKoti, Henri-Levich, Hhazel09, Hollsss, Isabell.Sabo, JLDAD, JakeBailey1981, JamieSC, Jaqueline65, Jose_Campos, JuliaBrazolim, Julia_Williamson, KEP, KLIMCAK-62, KSparx, Kanilamppu, KatKacix, Kayanw, Kirtimayee21, KrisGutmane, L.Chloe, Larsson7, Lehar24, Leon_Garcia, Lepii, LesleyDL, LiamChadwick, LifeSVR, MaMu_AbJetzt, MaXoN, MagdaSz, MarionNegus, Massaraksch, Matejasoccer, Mateocapman, MathsKid, MatiasUA, MatusMosny, Mebovic, Melanol, MerylPG, Mesmerising, Migley68, MikeyMeals, Mikusan, MilindoX, MorganGellert, Mrinalinixav, MyaNichole, NFaz, NZCMeow, NamelessGuardian, NanoCanales, Nejeff, Nessie89, Nick.Piano, Nickdpoul, NinjaMuffinMan42, Ninjaboyblue, Nishant_Bloomberg_ETCIndia, Nomad_Purple, NordicDogma, Numan, Obexium, ObsoleteBot, OneMorePelican, OregonHiker, OruuKen, OuterWorlds, Peppe87, Prakshal, Pvolcan, RBiros, RVCC-Zach, Rebekah27, ReninK, RichScheller, RichardMaher, RickVleugels, Robesyn, Rubru, Sabik, Sageberry, SalahElekiaby, Samkynhneigd, SeamusOpea, SegaOX, Shaul_L, Shubham_Srivastav, Shweta_M, ShyBay, Siddharth1, Slayz, Soltere11, Sonrosie, Sovanacharya, Spazial, Stephjayne, Stinafisher, Tacosek, TalkativeOldFart, Tamina_, Terri-ann, Tirthankar, Tiwen, Tom2132, TripleNine, TurboDuck, USSDISCOVEREY, Utahraptor3, VRtico, Veda_Price, Videira, Vladaya, Voyager_1, VyacheslavErmakov, W7300987, WEBs_in_space, WILLNOVO, Wacy, Walmer, WiardS, Wihaan, WilliamFord, Wmorris26, Wokingirl, Xande_espacial, XxRytisxX, Yobi, priya, abaumann, abdulazizshire46, acgibbons, adiazhernandez47, adios000, agarro, agbenson, akku99, alchemistjijo, aldude52, allenism, amit.raka, amolikakkar, analia, andrea778, andsul, andynoax, annakhm, annekidd11, apalac99, apena36, archives, ariana0312, aroaceautistic, ashley.pillay2, ashleyb4285, asko_oksa, aspringer, assodicuori, astroguy12349, athenaleigh, atmega8, aussiegoodstuff, ayalagist, bakundi, baussel, beyondcommunication, 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winddancing, yippee-Aye-Kay, zbermudez23, zephcat, zjuleke.

Results

You provided nearly 2 million classifications for 150,000 images from the ESA HST archives. We have used the classifications you provided to train an automated machine learning classifier, based on Google Cloud, to further explore the Hubble archive for asteroids. We have now analyzed the dataset and can report on the results. In total, we recovered 2,400 trails in the HST archival images taken between 2002 and 2020. Some examples of asteroid trails in the HST images are shown below:

We further analysed the asteroid trails in order to obtain their brightnesses with a customised algorithm. We validated the trails, finding 1,700 trails presumably of Solar System objects. Their distribution in the sky is shown below.

We used the SkyBoT service provided by IMCCE/Paris Observatory and the JPL HORIZONS online solar system data and ephemeris for identifying the known objects. We computed the ephemerides taking into account the position of HST. Despite using the largest databases of asteroids, we only matched 670 trails with already known asteroids, taking into account the orbital uncertainties and their apparent motion. Therefore, our data contains 1,030 unknown objects or objects with very large orbital uncertainties. This is not surprising, since most of the apparent magnitudes of our trails are fainter than magnitude 22 (see a distribution of brightnesses below), which is the approximate limit for the asteroid discovery surveys performed with ground-based telescopes. Most of these objects will correspond to main-belt objects with sizes <1 km, thus will help us characterize the distribution of small size asteroids in the Main Belt, a population poorly explored by current studies.

Some of you also noticed this magnificent asteroid passing in front of the Crab Nebula, discussed here - https://www.zooniverse.org/projects/sandorkruk/hubble-asteroid-hunter/talk/2452/1038277?comment=1714978&amp;page=1.
@Melina_t created a beautiful colour image of it:

You also recovered a fabulous image of two asteroids crossing path in front of a dwarf galaxy:

We have presented results from this project at two conferences

We have presented the results from this project at the Astronomical Data Analysis Software and Systems conference (ADASS2020).

And at the EIROForum workshop on Big Data.

Media Reports of results from the project

ESA Image of the Week - http://www.esa.int/spaceinimages/Images/2019/10/Foreground_asteroid_passing_the_Crab_Nebula
Bad Astronomy - https://www.syfy.com/syfywire/citizen-scientists-find-asteroids-in-hubble-images
Hubble Space Telescope - https://www.spacetelescope.org/announcements/ann1907/
ESA Data Science Centre Newsletter - https://esdcnews.esac.esa.int/news/2019-07/#ASTRO-SURVEY