[{"data":1,"prerenderedAt":568},["ShallowReactive",2],{"project-49898778":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":28,"sentiment":29,"stance_mix":30,"scored_comments":35,"aspects":36,"strip":43,"post_text":46,"what":47,"said":81,"maker_in_thread":221,"shape":230,"grid":233,"attempts":531,"same_week":532,"maker_shows":33,"maker_hidden":560,"reader_version":561,"card":562},"49898778","Real-time Solar System (space.bl2.net)","Real-time Solar System with 526k asteroids and all tracked satellites","title","Show HN: Real-time Solar System with 526k asteroids and all tracked satellites","https:\u002F\u002Fspace.bl2.net\u002F","space.bl2.net","wanick",1790708881,2026,408,109,81,4366,2,"legend","creative","space visualisation","web_app",[24,25,26,27],"solar system simulator","satellite tracker","asteroid visualisation","orbit viewer","mixed",0.291,{"positive":31,"neutral":32,"mixed":33,"critical":34},20,26,1,6,53,{"design":37,"idea":38,"execution":39,"performance":41},{"positive":18,"critical":18},{"positive":34,"critical":18},{"positive":40,"critical":33},0,{"positive":42,"critical":40},3,[42,42,18,44,42,42,40,42,44,44,45,40,33,40,40,40,44,44,33,42,42,44,44,40,44,42,42,42,42,40,44,42,44,42,45,42,42,44,33,44],5,4,null,{"problem":48,"audience":46,"pricing":46,"motivation":46,"time_to_build":55,"stack":61,"openness":78,"stage":79,"team_size":80},{"value":49,"source":50,"evidence":51},"Shows the current state of the Solar System and objects around Earth in one view","maker",[52],{"id":53,"by":11,"text":54},"49899187","Author here. It's a browser view of the Solar System at real scale, with its current state, plus the objects around Earth from the CelesTrak catalog. Data: CelesTrak TLEs (SGP4),…",{"value":56,"source":50,"evidence":57},"A few evenings",[58],{"id":59,"by":11,"text":60},"49901856","Thanks! It's a byproduct of another project, so hard to say exactly. A few evenings.",[62,66,70,74],{"value":63,"source":50,"evidence":64},"WebGL2",[65],{"id":53,"by":11,"text":54},{"value":67,"source":50,"evidence":68},"Web workers for orbit propagation",[69],{"id":53,"by":11,"text":54},{"value":71,"source":50,"evidence":72},"CelesTrak TLE data (SGP4)",[73],{"id":53,"by":11,"text":54},{"value":75,"source":50,"evidence":76},"JPL SBDB and Horizons data",[77],{"id":53,"by":11,"text":54},"unknown","launched","solo",{"praise":82,"objections":114,"requests":146,"questions":179,"alternatives":205},[83,99],{"value":84,"source":85,"evidence":86},"Smooth performance with 526k asteroids","commenter",[87,91,95],{"id":88,"by":89,"text":90},"49905285","FlowingRiver","Brilliant project and very well done. That aside, it is just astounding that even a moderate laptop just plows through this as thought it is nothing. I remember doing orbital…",{"id":92,"by":93,"text":94},"49904842","rtmkrptn","I love how smooth it is! Amazing work",{"id":96,"by":97,"text":98},"49906538","GnosiWorks","526k objects and it still feels smooth. are you culling by distance or doing something smarter on the gpu side?",{"value":100,"source":85,"evidence":101},"Beautiful and informative view of satellites and asteroids",[102,106,110],{"id":103,"by":104,"text":105},"49902174","karim79","Beautiful site. I love how tranquil the scene becomes when satellites and spacecraft is unchecked. Thanks for that SpaceX (and others).",{"id":107,"by":108,"text":109},"49906668","dunlin","Always wanted to see the asteroid belt's true density visualized; this really puts it into perspective. Impressive work keeping everything performant.",{"id":111,"by":112,"text":113},"49903021","blindflag","I love this; also runs surprisingly smoothly (at least in browser; didn't check mobile). Also beautiful and hypnotic in motion. What's the next step that you want to take to…",[115,129,139],{"value":116,"source":85,"evidence":117},"Satellites and objects are not drawn to scale",[118,122,126],{"id":119,"by":120,"text":121},"49901484","____tom____","> It's a browser view of the Solar System at real scale Is it really? I don't think you could see the satellites, if they weren't drawn at 1000x scale. I am wrong? At real scale,…",{"id":123,"by":124,"text":125},"49901804","jsphweid","I think it's pretty obvious the satellites aren't drawn to scale, given they don't change in size when zooming in\u002Fout.",{"id":127,"by":11,"text":128},"49910805","Good point, the page now says it: distances are to scale, the dots are not.",{"value":130,"source":85,"evidence":131},"Missing some asteroids",[132,136],{"id":133,"by":134,"text":135},"49909904","sebmellen","This asteroid is missing FWIW https:\u002F\u002Fssd.jpl.nasa.gov\u002Ftools\u002Fsbdb_lookup.html#\u002F?sstr=20031689",{"id":137,"by":134,"text":138},"49903331","Oh man, it seems like my asteroid (Minor Planet 31689 - Sebmellen [0]) is missing. [0]: https:\u002F\u002Fwww.wikidata.org\u002Fwiki\u002FQ6711174 [1]:…",{"value":140,"source":85,"evidence":141},"Hard to select or center on a planet",[142],{"id":143,"by":144,"text":145},"49899081","java-man","Super! Not easy to select or center on a planet though.",[147,158,165,172],{"value":148,"source":85,"evidence":149},"Faster zoom and mobile zoom support",[150,154],{"id":151,"by":152,"text":153},"49901287","boxed","A way to zoom that is faster than mouse wheel would be nice. Takes forever to zoom out a long way!",{"id":155,"by":156,"text":157},"49901321","Oarch","Being able to zoom on mobile at all would be great. And a way to close all of the overlay panels!",{"value":159,"source":85,"evidence":160},"Filter asteroids by approach to a target body",[161],{"id":162,"by":163,"text":164},"49925614","fouc","I would love to filter for asteroids that have orbits that bring them into within a certain range of a target body like earth.",{"value":166,"source":85,"evidence":167},"Keyboard pause and a Now button",[168],{"id":169,"by":170,"text":171},"49903171","mncharity","Fun: 116 d\u002Fs with Earth\u002Fetc selected, gives a Sun \"orbiting\" the Earth\u002Fetc effect. Bug: ISO DEB at 17 min\u002Fs looked normal, but at 2.8 h\u002Fs it became a solid-ish (lots of crossing…",{"value":173,"source":85,"evidence":174},"Source code on GitHub",[175],{"id":176,"by":177,"text":178},"49906692","jurakovic","No github repo? :(",[180,187,194],{"value":181,"source":85,"evidence":182},"How are spacecraft positions sourced from JPL",[183],{"id":184,"by":185,"text":186},"49903043","ddahlen","How are you sourcing the spacecraft positions from JPL? Are you just grabbing a huge list of state vectors? My old day job was to compute asteroid positions for NASA telescopes,…",{"value":188,"source":85,"evidence":189},"How are satellites shown when launched dates are in the future or past",[190],{"id":191,"by":192,"text":193},"49906045","schiffern","``` >satellites appear and disappear by launch date ``` This uses the modern TLE propagated backwards in time (vs using historical TLEs), correct?",{"value":195,"source":85,"evidence":196},"What share of tracked satellites is Starlink",[197,201],{"id":198,"by":199,"text":200},"49901415","1shooner","Almost 1 in 3 tracked spacecraft is Starlink, is that accurate?",{"id":202,"by":203,"text":204},"49901650","Sayrus","Even more than that. Of the 35k tracked \"Satellites and spacecraft\", more than 12k are debris bringing Starlink to 1 in 2. If you look only at Active known satellites, around 2…",[206,217],{"value":207,"source":85,"evidence":208},"Celestia",[209,213],{"id":210,"by":211,"text":212},"49902769","tintor","Celestia did all of this and more. 10+ years ago. https:\u002F\u002Fcelestiaproject.space\u002F",{"id":214,"by":215,"text":216},"49904297","defrost","> and the download page looks like this: https:\u002F\u002Fsourceforge.net\u002Fprojects\u002Fcelestia\u002F The page that states \"Please do not download Celestia from this repository. This repository…",{"value":218,"source":85,"evidence":219},"Stellarium",[220],{"id":214,"by":215,"text":216},{"comments":222,"answered":223,"key":224},21,16,[225,226,229],{"id":53,"text":54},{"id":227,"text":228},"49902433","Thanks, I've already fixed it.",{"id":127,"text":128},{"commenters":231,"max_depth":44,"maker_replies":222,"first_comment_mins":18,"lifespan_hours":232},75,96,[234,236,238,239,240,242,243,247,249,253,256,258,260,262,264,266,268,272,275,278,282,284,285,287,289,293,297,300,303,304,306,309,312,315,316,319,322,324,325,327,330,334,338,341,345,347,351,355,358,359,362,366,368,370,372,376,377,381,385,387,389,393,396,399,402,405,408,411,415,417,419,420,423,426,429,431,435,437,441,444,446,450,452,455,457,461,464,468,472,475,478,482,486,488,492,496,499,501,503,506,510,514,517,519,522,524,527],[53,40,40,235,11,33],"maker\u002Fneutral\u002Fnone",[151,40,42,237,152,40],"project\u002Fneutral\u002Fdesign",[155,40,42,237,156,40],[227,40,40,235,11,33],[119,40,42,241,120,40],"project\u002Fneutral\u002Fidea",[123,40,42,241,124,40],[244,40,33,245,246,40],"49906834","project\u002Fcritical\u002Fidea","philipwhiuk",[248,40,42,241,112,40],"49902996",[250,40,44,251,252,40],"49904222","project\u002Fpositive\u002Fidea","bbor",[254,40,40,255,246,40],"49906829","commenter\u002Fneutral\u002Fnone",[257,40,40,255,252,40],"49915349",[127,40,40,259,11,33],"maker\u002Fneutral\u002Fidea",[184,40,42,261,185,40],"maker\u002Fneutral\u002Fexecution",[263,40,40,261,11,33],"49906122",[191,40,42,265,192,40],"project\u002Fneutral\u002Fexecution",[267,40,40,265,11,33],"49907557",[269,40,40,270,271,40],"49906823","other\u002Fneutral\u002Fnone","laylower",[273,40,40,270,274,40],"49907808","gridmap",[276,40,40,270,277,40],"49910454","dmbche",[279,40,44,280,281,40],"49908919","project\u002Fpositive\u002Fdesign","joshspankit",[133,40,33,283,134,40],"project\u002Fcritical\u002Fexecution",[162,40,42,241,163,40],[286,40,40,235,11,33],"49932877",[88,33,44,288,89,40],"project\u002Fpositive\u002Fperformance",[290,18,44,291,292,40],"49902730","project\u002Fpositive\u002Fnone","climech",[294,42,42,295,296,40],"49900584","project\u002Fneutral\u002Fnone","einpoklum",[298,42,42,241,299,40],"49901514","dylan604",[301,42,42,241,302,40],"49903170","zamadatix",[103,45,44,280,104,40],[305,45,40,270,192,40],"49904072",[307,45,40,270,308,40],"49904993","dddw",[310,45,40,270,311,40],"49910657","idbnstra",[313,45,40,270,314,40],"49912881","BrokenCogs",[210,44,33,245,211,40],[317,44,40,255,318,40],"49904097","euler2100",[320,44,40,255,321,40],"49906900","Vivek-KY",[323,44,40,255,252,40],"49904251",[214,44,40,255,215,40],[326,44,40,255,252,40],"49915326",[328,34,40,270,329,40],"49901785","nephihaha",[331,332,40,270,333,40],"49908599",7,"shagie",[335,336,40,270,337,40],"49909238",8,"ev0lv",[339,336,40,270,340,40],"49910576","AustinDev",[342,343,40,270,344,40],"49912944",9,"waylandsmithers",[107,346,44,251,108,40],10,[348,349,40,270,350,40],"49909633",11,"smusamashah",[352,353,44,291,354,40],"49901311",12,"nugzbunny",[356,353,44,291,357,40],"49901489","fnordprefect",[59,353,40,235,11,33],[143,360,33,361,144,40],13,"project\u002Fcritical\u002Fdesign",[363,364,42,241,365,40],"49917755",14,"oxzidized",[367,364,40,235,11,33],"49935131",[369,364,40,235,11,33],"49943526",[371,364,40,235,11,33],"49946649",[373,374,33,361,375,40],"49903269",15,"subtlesoftware",[111,223,44,251,112,40],[378,379,42,241,380,40],"49905621",17,"ratox",[382,383,44,291,384,40],"49909702",18,"vibe42",[386,383,40,235,11,33],"49910468",[388,383,40,235,11,33],"49910799",[390,391,44,251,392,40],"49905551",19,"mentalgear",[394,391,40,255,395,40],"49906881","derpyzza",[397,391,40,255,398,40],"49907559","0x_rs",[400,391,40,270,401,40],"49911780","efromvt",[403,31,44,291,404,40],"49905249","ComodoHacker",[406,222,42,295,407,40],"49908650","ShinyLeftPad",[409,222,40,255,410,40],"49909237","bgolson",[412,413,42,237,414,40],"49909119",22,"boringg",[416,413,40,235,11,33],"49909526",[198,418,42,295,199,40],23,[202,418,42,295,203,40],[421,418,40,255,422,40],"49901679","gus_massa",[424,418,40,270,425,40],"49907876","totetsu",[427,428,42,237,425,40],"49907828",24,[430,428,40,235,11,33],"49908985",[432,433,42,241,434,40],"49901847",25,"mcv",[436,32,40,235,11,33],"49910831",[438,439,40,270,440,40],"49905704",27,"dmos62",[442,439,40,270,443,40],"49912774","mmooss",[445,439,40,270,440,40],"49913236",[447,448,44,288,449,40],"49912767",28,"marcd35",[451,448,40,235,11,33],"49913436",[96,453,42,454,97,40],29,"project\u002Fneutral\u002Fperformance",[456,453,40,454,11,33],"49906628",[458,459,42,295,460,40],"49900341",30,"eutropia",[462,459,40,270,463,40],"49900556","dvh",[465,466,44,251,467,40],"49906173",31,"BraamV",[469,470,44,251,471,40],"49904490",32,"r0b05",[169,473,42,474,170,40],33,"project\u002Fmixed\u002Fexecution",[476,473,40,477,11,33],"49910772","maker\u002Fpositive\u002Fexecution",[479,480,42,237,481,40],"49904950",34,"DylanMerigaud",[483,484,42,241,485,40],"49904033",35,"sans_souse",[92,487,44,288,93,40],36,[489,490,42,241,491,40],"49903243",37,"noosphr",[493,494,42,237,495,40],"49912564",38,"aaroninsf",[497,494,40,498,11,33],"49913427","maker\u002Fneutral\u002Fdocs",[176,500,42,295,177,40],39,[502,500,40,235,11,33],"49906920",[504,505,44,291,321,40],"49906846",40,[507,508,44,291,509,40],"49908522",41,"Yakobeen",[511,512,44,291,513,40],"49909696",42,"eksibir",[137,515,33,516,134,40],43,"project\u002Fcritical\u002Fnone",[518,515,40,255,308,40],"49904972",[520,515,40,255,521,40],"49905156","stavros",[523,515,40,235,11,33],"49910813",[525,515,40,526,134,40],"49912569","commenter\u002Fpositive\u002Fnone",[528,529,44,291,530,40],"49898803",44,"jairofdez",[],[533,538,542,546,551,556],{"id":534,"name":535,"points":536,"category":537},"49833867","Whiteboard 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