lahan grah

aantarrashtriy khagolshastriy sangh (aay. aii. yuu.) nusar, eka lahan grah hii suryabhovati thet kakshet asaleli khagolshastriy vastoo aahe jee keval grah kinwa dhoomketu mhanoon vargikrut keleli nahee. 2006 purvi, aay. aii. yuu. neey adhikrutpane 'laghu grah' haah shabd vaparla hota, parantu tyaa varshichya baithakit lahan grah aanee dhoomketuche baune grah aanee saurmaletil lahan vastunmadhye (ess. ess. ess. bii. ess.) punarvargikaran karnyat aale.
chhotya grahanmadhye laghugrah (pruthvijavalachya vastoo, mangal-crossers, mukhya-pattyavaril laghugrah aanee jupiter trojan), tasech durchya chhotya grahancha (centaurs aanee trans-neptunion vastoo) samavesh aahe, jyapaiki bahutek quiper pattyat aanee vikhuralelya pattyamadhye rahatat. dnyat vastoo aahet, jyaa 611,678 kramankachya (surakshit shodh) aanee 519,523 sankhyechya nasalelya lahan grahanmadhye vibhagalya aahet, tyapaiki keval paach adhikrutpane butka grah mhanoon manyataprapt aahet.
1801 madhye shodhala gelela pahila lahan grah seres hota. yaa vastunche varnan karnyasathi 19 vya shatkapasoon 'lahan grah' haah shabd vaparla jaat aahe. planetoid haah shabd dekhil vaparla jaat aahe, visheshtah mothya grahansathi, jase qee aay. aii. yuu. neey 2006 pasoon butke grah mhatale aahet. aitihasikdrushtya, 'laghugrah', 'laghu grah' aanee 'planetoid' yaa sandnya qamee-adhik pramanat samanarthi aahet. jupiterchya kakshechya palikade asankhya lahan grahancha shodh lagalyane, visheshtah samanyatah laghugrah naan manalya manalya trans-neptunion vastooncha shodh lagalyane hii shabdavali adhik klisht jhaali aahe. vayoo sodatana sodatana chhotya grahache done prakare dhoomketu mhanoon vargikaran kele jaau shakate.
jarr tyanche swatache gurutvakarshan hydrostatic santulan sadhya karnyasathi aanee lambvartulakar aakar tayar karnyasathi purese asel tarr vastoonna butke grah mhanatat. itar serve lahan grah aanee dhoomketoona 'lahan saur mandal vastoo' mhanatat. aay. aii. yuu. neey mhatale aahe qee 'laghu grah' haah shabd ajunahi vaparla jaau shakato, parantu 'laghu saur mandal shareer' yaa shabdala pradhanya dile jaeel. tathapi, sankhya aanee namkaran karnyachya uddeshane, lahan grah aanee dhoomketu yanchyatil paramparik farak ajunahi vaparla jaato.
loksankhya.
saur mandalat lakho lahan grah sapadale aahet aanee darr mahinyala aanakhi hajaro grah sapadale aahet. laghu grahachya kendrane 21.3 kotee nirikshananchi aanee 794,832 laghu grahanchi nond kelee aahe, jyapaiki 541,128 kakshanna kayamswarupi adhikrut sankhya niyukt karnyasathi purese changle dnyat aahe. yapaiki 21,922 nave adhikrut aahet. sarvat qamee kramankacha anamik laghu grah aahe aanee sarvadhik kramankacha laghu grah 594913 aahe.
vividh vyapak laghu-grahanchi loksankhya aaheh
namnirdeshit parampara.
saur mandalatil serve khagoliy vastoonna eka vegale naav aavashyak aahe. chhotya grahanchi nave teen tappyanchya prakriyetoon jaatat. pratham, shodhalyavar tatpurte naav dile jaate-kaaran tee vastoo ajunahi chukichi sakaratmak tharoo shakate kinwa nantar harvoo shakate-jyala "tatpurata niyukt kelela lahan grah" mhanatat. nirikshan kamani tyachya bhavishyatil sthanacha andaj lavnyaitaki achook jhalyanantar, eka lahan grah aupcharikpane niyukt keela jaato aanee tyala eka sankhya prapt hote. tyanantar too eka 'kramankit laghu grah' aahe. shevati, shevati tappyat, tyache shodhak tyala naav deu shakatat. tathapi, serve lahan grahanpaiki keval eka chhotya bhagala nave denyat aalee aahet. bahusankhya ektar kramankit aahet kinwa ajunahi keval tatpurte padnam aahet. namkaran prakriyeche udaharaneh
tatpurte padnam.
navyane sapadalelya chhotya grahala tatpurte naav dile jaate. udaharanarth, tatpuratya padnamamadhye shodh varsh (2002) aanee shodh lagnyachya ardhya mahinyacha aanee tyaa ardhya mahinyatil kram darshavinara eka alphanumeric code asato. ekada laghugrahanchya kakshechi pushti jhaali qee, tyala eka sankhya dilee jaate aanee nantar tyala eka naav dekhil dile jaau shakate (udaa.jee. 433 eros). aupcharik namkaran parampara sankhyechya bhovati bandhane vaparte, parantu bandhane sodane heey agadi samanya aahe. anaupacharikpane, chaloo majkurat jevha navachi punaravrutti hote tevha kramank purnapane kadhoon takane kinwa pahilya ullekhanantar too kadhoon takane samanya aahe.
jyaa chhotya grahanna sankhya denyat aalee aahe parantu naav denyat aalele nahee, teey tyanche tatpurte naav thevatat, udaa.jee. (29075) 1950 dii. aii. aadhunik shodh tantranmadhye mothya sankhyene naveen laghugrah sapadat asalyane, teey adhikadhik anamik kele jaat aahet. sarvat aadhi adnyat thevalele sapadale teey teey kalapasoon (3360) 1981 vaa, aata 3360 syrincs. november 2006 madhye sarvat qamee sankhyecha anamik laghugrah mhanoon tyache sthan (aata 3708 socus) aanee meey 2021 madhye teey pudhe gele. durmil prasangi, ekhadya chhotya vastuche tatpurte padnam swatach eka naav mhanoon vaparale jaau shakateh tatkalin naav nasalelya vastoone tyache 'naav' tyaa vastoonchya gatala dile jeey janewari 2018 madhye shevati 15760 albian asey naav denyapurvi shastriy quiper belt objects ('cubevanos') mhanoon olakhale gele.
kahee vastoo dhoomketu aanee laghugrah mhanoon cross-listed aahet, jase qee 4015 willson-harrington, jeey 107p/willson-harrington mhanoon dekhil soochibaddha aahe.
sankhya.
chhotya grahanchya kakshanchi pushti jhalyanantar tyanna adhikrut kramank deela jaato. shodhanchya vadhatya vegane, aata yaa sahaa aakadyanchya sankhya aahet. 19 aktoobar 2005 roji laghu grah vartulachya (emm. pii. see.) prakashanasah paach aakadyanvarun sahaa aakadyanparyantche badal jhaale, jyat sarvadhik sankhyecha laghu grah 99947 varoon 118161 paryant zepavala.
naav.
pahilya kahee laghugrahanna greek aanee roman pauranik kathanmadhil aakrutyanvarun nave denyat aalee hotee, parantu asha navanmule prasiddha lokanchi nave qamee houu lagali, sahityik patre, shodhak jodidar, mule, sahkari aanee agadi durchitravani patre dekhil vaparali gelee.
dhoomketu aanee lahan grahanche bhautik gunadharm.
aantarrashtriy khagolshastriy sangharajyacha 15 vaa aayog dhoomketu aanee lahan grahanchya bhautik abhyasasathi samarpit aahe.
dhoomketu aanee lahan grahanchya bhautik gunadharmanvaril abhilekheey mahitee pii. dii. ess. laghugrah/dhool sangrahamadhye aadhalate.<riif naav = "pii. dii. ess. laghugrah/dhool sangrah"> </ref> yaat dvisangi pranalinche gunadharm, gupt vel aanee vyas, vastuman, ghanata, paribhraman kalavadhi, prushthbhagache tapman, albido, firki vahak, vargikaran aanee paripoorn pariman aanee utaar yasarkhya manak laghugrah bhautik vaishishtyancha samavesh aahe. yavyatirikt, european laghugrah sanshodhan node (udaa.aaa.aar.aine.), laghugrah sanshodhan gatanchi eka sanghatana, pruthvijavalachya laghugrahanchya bhautik aanee gatishil gunadharmancha deta bases rakhate.
paryavaraniy malmatta.
paryavaraniy vaishishtyanche teen pailu aaheth antaral vatavaran, prushthbhagavaril vatavaran aanee bhoogarbhiy, prakashik, aushnik aanee kiranotsargi paryavaraniy gunadharm ityadinsah antargat vatavaran.jeey lahan grahanche moolbhut gunadharm samajoon ghenyasathi, vaidnyanik sanshodhan karnyasathi aadhar aahet aanee shodh mohimanchya pelodchi rachana karnyasathi dekhil eka mahattvacha sandarbh aadhar aahet
kiranotsargache vatavaran.
vatavaran aanee tyachya swatachya majboot chumbakeey kshetrachya sanrakshanashivay, chhotya grahacha prushthbhag thet sabhovatalachya kiranotsargachya vatavaranachya samparkat yeto. grahanchya prushthbhagavaril kiranotsarg tyanchya strotannusar done prakaranmadhye vibhagala jaau shakatoh eka suryakadoon yete, jyamadhye suryakadoon vidyutchumbakiy kiranotsarg aanee saur pawan aanee saur urjechya kananmadhun aayanikaran karnare kiranotsarg samavisht aahe; dusare saurmalechya baher suryakadoon yete, mhanje aakashgangetil vaishvik kirane ii.
optical vatavaran.
samanyatah chhotya grahachya eka firanyachya kalavadhit, tyachya aniyamit aakaramule aanee bhautik rachanechya asman vitaranamule chhotya grahache albido kinchit badalel. haah chhotasa badal grahachya prakash vakrareshechya niyatkalik badalamadhye pratibimbit hoil, jeey jaminivaril upkarnandware pahile jaau shakate, jenekarun grahache pariman, paribhraman kalavadhi, paribhraman aksh abhimukhata, aakar, albedo vitaran aanee vikhuranyache gunadharm prapt karata yeteel. sarvasadharanpane sangayache tarr, lahan grahanche albido samanyatah qamee asatat aanee see-prakar (sarasari 0.035) aanee ess-prakar (sarasari 0.15) lahan grahanshi sambandhit ekoon sankhyikeey vitaran dvi-pratirup asate. laghu grah anveshan mohimemadhye, grahachya prushthbhagachya albedo aanee rung badalanche mojmap karane hii dekhil grahachya prushthbhagachya bhautik rachneteel farak thet jaanun ghenyachi sarvat moolbhut paddhat aahe.
bhoogarbhiy vatavaran.
chhotya grahanchya prushthbhagavaril bhoogarbhiy vatavaran itar asurakshit khagoliy vastunsarkhech aahe, sarvat vyapak bhurupshastriy vaishishtya mhanje impact craterh tathapi, bahutek lahan grah dhigaonyakhalilakhaaalawiilaw dhigaonyakhalil aahet, jeey sail aanee sachchidra aahet, hii vastusthiti lahan grahanchya prushthbhagavaril impact actionla tyachi adviteey vaishishtye dete. atyant sachchidra chhotya grahanvar, chhotya prabhavachya ghatananmule samanya prabhavachya ghatananpramanech vikhuralelya kambale tayar hotatah tarr mothya prabhavachya ghatananmadhye sankuchan asate aanee vikhuralelya kambale tayar karane katheen asate aanee grahanna jitka jaast kaal itake mothe parinam midatat, titakich ekoon ghanata jaast asate. yavyatirikt, grahachya prushthbhagachya vayachi mahitee midvanyache eka mahattvache sadhan mhanje prabhav khadde yanche sankhyikeey vishleshan. jaree chhotya grahachya prushthbhagavar samanyatah vaparlya jaanarya crater size-frequency distribution (see. ess. eff. dii.) paddhatimule paripoorn vay midavata yet nasale taree, tulana karnyasathi vegvegalya bhoogarbhiy sansthanche sapeksh vay nirdharit karnyasathi tyacha vapar keela jaau shakato. prabhavavyatirikt, chhotya grahanchya prushthbhagavar itar vividh prakarche samruddha bhoogarbhiy parinam aahet, jase qee utaar aanee prabhav khandak bhintinvar mothya pramanat apavyay, grabonshee sambandhit mothya pramanat resheey vaishishtye aanee dhool sthir vidyut vahtook. chhotya grahanchya prushthbhagavaril vividh bhoogarbhiy prakriyanche vishleshan karoon, yaa tappyatil sambhavya antargat kriyakalap aanee bahya vatavaranashi dirghakalin parasparsanvadabaddal kahee pramukh utkranti mahitee jaanun ghene shakya aahe, jyamule mool sharirachya utpattiche swaroop kahee pramanat soochit houu shakate. anek mothe grah anekada adnyat jaadichya matichya tharane (regolith) jhakalele asatat. saur mandalatil itar vatavaran-mukt vastoonchya tulanet (udaa.jee. chandra), lahan grahanmadhye gurutvakarshan kshetra kamkuvat asate aanee bareek daane asaleli samagri tikavoon thevanyas qamee saksham asatat, parinami prushthbhagavaril maticha thurr kahisa motha hoto. matiche thurr apariharyapane tivra avkash havamanas adheen asatat jeey aaspaschya antaral vatavaranachya thet samparkat aalyane tyanche bhautik aanee rasayanik gunadharm badaltat. siliketyukt mateet, feche bahya thurr nanoe-fages phay (aine. pii.-phay) madhye qamee kele jaatat, jeey antaral havamanshastrache mukhya utpadan aahe. kahee lahan grahansathi, tyanche prushthbhag tyanchya kamkuvat gurutvakarshanachya odhamule, 100 meater vyasachya vegvegalya aakarachya dagadanchya rupat adhik ughad asatat. heey dagad uchch vaidnyanik swarasya asalele aahet, kaaran teey ektar prabhav krutidvare utkhanan kelele kholvar dadalele sahitya kinwa grahachya mool sharirache avashesh asoo shakatat jeey jiwant aahet. matichya tharapeksha khadak chhotya grahachya aateel samagribaddal aanee tyachya mool sharirachya swarupabaddal adhik thet aanee adim mahitee pradan karatat aanee khadakanche vividh rung aanee rupe chhotya grahachya prushthbhagavaril samagriche vividh srot kinwa vividh utkranti prakriya darshavtat.
chumbakeey vatavaran.
sahasa grahachya aateel bhagat, pravahakeey dravache sanvahan eka mothe aanee majboot chumbakeey kshetra nirman karel. tathapi, chhotya grahacha aakar samanyatah lahan asato aanee bahutek lahan grahanchi rachana 'chiralelya dagadi dhigaonyakhalil' chee asate aanee mulat aat konatihi 'dynamo' rachana nasate, tyamule teey pruthvisarkhe swayam-nirmit dvidhruviy chumbakeey kshetra nirman karnar nahee. parantu kahee lahan grahanmadhye chumbakeey kshetre asatat-ekikade, kahee lahan grahanmadhye kayamswarupi chumbakatva asateh jarr mool vastuche chumbakeey kshetra asel kinwa jawalchya grahanchya vastuche majboot chumbakeey kshetra asel tarr mool vastuvareel khadak thund prakriyedarmyan chumbakeey hotil aanee mool vastoochya vikhandanadvare tayar jhalela grah ajunahi punarsthapit raheel, joou lahan grahanmadhil bahya ulkanmadhye dekhil aadhalu shakato; dusarikade, jarr lahan grah vidyut pravahakeey samagreene banalele asateel aanee tyanchi antargat chalakata carbon kinwa loh-vahak ulkapindansarkhi asel tarr lahan grah aanee saur vaara yanchyatil parasparkriya ekdhruviy preran asanyachi shakyata aahe, parinami lahan grahasathi bahya chumbakeey kshetra nirman hoil. yavyatirikt, lahan grahanchi chumbakeey kshetre sthir nasatat; prabhavachya ghatana, antaralatil hawaman aanee aushnik vatavaranatil badal heey lahan grahanchya vidyaman chumbakeey kshetranmadhye badal karoo shakatat. sadhya, chhotya grahanchya chumbakeey kshetranchi pratyaksh nirikshane farshi naheet aanee vidyaman kahee grahancha shodh prakalp samanyatah magnetometer vahoon netat, jyat gaspra aanee brail yasarkhya kahee lakshyansah jawalach majboot chumbakeey kshetra asalyache mojale jaate, tarr leutasiasarkhya itaranmadhye chumbakeey kshetra nasate.

