prakasha vakram

jyothishaasthrathil, oru aakasha vasthuvinteyo pradeshathinteyo prakasha theevrathayude oru graafaanu prakasha vakram, saadhaaranayaayi "y"-akshatthil labhikkuna prakaashatthinte vyapthiyum "x"-akshatthil samayavum. prakasham saadhaaranayaayi oru prathyeka aavruthi edavelayilo bandilo aanu.
prakasha vakrangal aavarthanangalaayirikkaam, grahanam, varnnavivechana variableukal, mattu aavarthana variableukal, sourayoodhathinu purathulla grahangal ennivayil; allengil aperiodic, novayude prakasha vakram, cataclismic variable staar, supernova, micro lensing ivant allengil nigooda sambhavangalkkidayil nireekshikkunna bainari. prakasha vakrathekkurichulla patanam, mattu nireekshanangalkoppam, athu uthppaadippikkunna bhauthika prakriyayekkurichu ganyamaaya vivarangal nalkano athinekkurichulla bhauthika sidhaanthangale parimithappedutthaano kazhiyum.
variable nakshathrangal.
kaalakramena oru variable nakshathratthinte prathyaksha vyaapthiyude graafukal saadhaaranayaayi avayude swabhaavam drishyavalkkarikkaanum vishakalanam cheyyaanum upayogikkunnu. variable nakshatra tharangalude vargeekaranam avayude spectral gunangalil ninnaan kooduthalaayi nadakkunnathenkilum, avayude thelicha maattangalude aamplityoodukal, kaalayalavukal, kramam enniva ippozhum pradhana gadakangalaanu. sepheedukal polulla chila tharangalkk oro chakratthilum ore kaalayalav, amplitude, aakruthi ennivayulla valare saadhaaranamaaya prakasha vakrangalundu. miraa variableukal polulla mattullavaykku niravadhi maagnityoodukalude valia aamplityoodukalulla kurachu kuranja pathiv prakasha vakrangalundu, athesamayam semiregular variableukal sthiramallaathathum cheria aamplityoodukalullathu.
variable staar laitt karvukalude aakruthikal thelicha mattangal srishtikkunna adisthaana bhauthika prakriyakalekkurichulla vilapetta vivarangal nalkunnu. grahana variabilukalkku, prakasha vakrathinte aakruthi mothatthinte alavu, nakshathrangalude aapekshika valuppangal, avayude aapekshika uparithala prakasham ennivaye soochippikkunnu. bhramanapathatthinte vikendrathayum rund nakshathrangalude aakruthiyilulla valachodikkalukalum ithu kaanichekkaam. pulsating nakshathrangale sambandhichidatholam, pulsationukalude amplitude allengil kaalayalav nakshathratthinte prakashavumaayi bandhappettirikkam, koodaathe prakasha vakra aakruthi pulsation modile oru soochakamaakaam.
supernova.
soopparnovakalil ninnulla prakasha vakrangal supernovayude tharatthe soochippikkaam. supernova tharangale avayude spectrayude adisthaanathil nirvachikkunnundenkilum, oronninum saadhaarana prakasha vakra aakruthikalundu. type I sooparnovakalkku moorchayulla paramavadhi prakasha vakrangalundu, kramena kurayunnu, athesamayam type II sooparnovakalkku moorchayulla paramavadhi kuravaanu. mangiya supernovayude vargeekaranathinum upa-tharangal nirnnayikkunnathinum prakasha vakrangal sahaayakaramaan. udaaharanathinu, type II-p (peedabhoomiye sambandhichidatholam) type II-l (leanier)-nuu samanamaaya spectra undengilum mangal punaraarambhikkunnathin munbu niravadhi aazhchakalo maasangalo vare idivu parannupokunna oru prakasha vakrathaal verthirichariyappedunnu.
grahangalude jyothishaasthram.
grahashaasthrathil, oru cheria grahatthinteyo chandranteyo vaalnakshatram kendrathinteyo bhramanakalam nirnnayikkaan oru prakasha vakram upayogikkaam. bhoomiyil ninnu sourayoodhathile oru cheria vasthuvine pariharikkan palappozhum margamilla, ettavum sakthamaaya dooradarshinikalil polum, kaaranam vasthuvinte prathyaksha koneeya valuppam dittaktarile oru pixalinekkaal cheruthaanu. athinaal, jyothishaasthranjar oru vasthu ulppaadippikkunna prakaashatthinte alavu samayathinte pravartthanamaayi (prakasha vakram) alakkunnu. prakasha vakrathile kodumudikalude samaya verthiriv vasthuvinte bhramana kaalayalavinte oru kanakk nalkunnu. paramavadhi, kuranja thelicham (prakasha vakrathinte amplitude) thammilulla vyathyasam vasthuvinte aakruthiyo athinte uparithalathile thilakkamullathum irundathumaaya pradeshangalo aakam. udaaharanathinu, oru asamamaya chhinnagrahathinte prakasha vakrathinu saadhaaranayaayi kooduthal uchathilulla kodumudikalundengilum kooduthal golaakrithiyilulla vasthuvinte prakasha vakram parannathayirikkum. chhinnagrahangalude aakruthiyeyum bhramanatheyum (pakshe valippamalla) kurichulla vivarangal anumanikkaan ithu jyothishaasthranjare anuvadikkunnu.
chhinnagraha laitt karvu daattaabes.
laitt karvu kwaalitti coode.
sahakarana chhinnagraha laitt karvu linkinte (kooll) "chhinnagraha laitt karvu daattaabes" (ell. sii. dii. bii) cheria graha prakasha vakrangalkkulla oru kaalayalavile parihaaratthinte gunanilavaaram vilayiruthaan oru samkhyaa coode upayogikkunnu (ithu yadhaartha adisthaana daatta vilayiruthanamennilla). athinte gunanilavaara coode paaraameettar "yuu" 0 (thettayi) muthal 3 (nannayi nirvachikkapetta) vareyaanu
oppitta moolyathekkaal alpam mechappettatho moshamaayatho aaya gunanilavaaram soochippikkaan oru trailing plus chihnam (+) allengil mainus chihnam (−) upayogikkunnu.
nigoodatha prakasha vakrangal.
nigooda prakasha vakrathe palappozhum bainari ennu visheshippikkunnu, avide nakshathrathil ninnulla prakasham thalkshanam avasaanikkukayum aaa kaalayalavil sthiratha kaivarikkukayum thalkshanam punasthaapikkukayum cheiyunnu. eee dairkhyam nigooda shareerathiludaneelamulla oru cordinte neelathinu thulyamaanu.
parivartthanangal thalkshanamallaatha saahacharyangal;
nireekshanangal saadhaaranayaayi viidiyoo upakaranangal upayogichaanu record cheiyunnathu, koodaathe gps achadakka viidiyoo time inserter (vidiai) upayogichu aprathyakshamaakunnathum veendum prathyakshappedunnathum samayabandhithamaan.
nigoodatha prakasha vakrangal visiyar sarveesil archive cheythittundu.
exoplanet kandethal.
oru nakshathratthinte prakasha vakra graphile aanukaalika idivu athu parikramanam cheiyunna nakshathrathinu munnil oru exoplanet kadannupokunnathaanu. oru exoplanet athinte nakshathrathinu munnil kadannupokumbol, aaa nakshathrathil ninnulla prakasham thaalkkaalikamaayi thadayappedunnu, athinte falamaayi nakshathratthinte prakasha vakrathil oru mungal sambhavikkunnu. grahangal idaykkide oru nakshathrathe parikramanam cheiyunnathinaal eee mungalukal aanukaalikamaanu. jyothishaasthraparamaaya sanjaara reethi ennariyappedunna eee reethiyiloode niravadhi exoplaanattukal kandethiyittundu. 
laitt karvu inversion.
karangunna vasthukkalude uparithalangale avayude thelicha vyathiyanangalil ninnu maathrkayaakkaan upayogikkunna oru ganithashaasthra saankethikathayaanu laitt karvu inversion. staarspottukaleyo chhinnagraha uparithala albidosukaleyo phalapradamaayi chithreekarikkaan ithu upayogikkaam.
micro lensing.
thaarathamyena cheruthum pindam kuranjathumaaya jyotishaasthra vasthukkal kooduthal akaleyulla oru vasthuvinte thelichathil cheria vardhanavinu kaaranamakunna oru prakriyayaan micro lensing. valia guruthwaakarshana lensukalaayi cheria aapekshika prabhavam moolamaanu ithu sambhavikkunnath, ennaal adrishyamaaya nakshatra, graha pinda vasthukkale kandethaanum vishakalanam cheyyaanum ithu anuvadikkunnu. lensing laitt karvinte aakruthiyil ninnu eee vasthukkalude gunangal oohikkaan kazhiyum. udaaharanathinu, andromeda galaxyile oru nakshatram kaaranam oru exoplanet ulla oru micro lensing sambhavamaan pii. eiii-99-enn. 2.

