Pulsando o RS Puppis, a estrela mais brilhante no centro da imagem, é dez vezes mais massivo que o nosso Sol e, em média, 15.000 vezes mais luminoso.
De fato, o RS Pup é uma estrela variável Cefeida, uma classe de estrelas cujo brilho é usado para estimar as distâncias de galáxias próximas como um dos primeiros passos no estabelecimento da escala de distância cósmica. Como RS Pup pulsa ao longo de um período de cerca de 40 dias, suas mudanças regulares no brilho também são vistas ao longo de sua nebulosa em torno atrasado no tempo, efetivamente um eco de luz.
Usando medições do tempo de atraso e tamanho angular da nebulosa, a velocidade conhecida da luz permite que os astrônomos determinem geometricamente a distância do filhote RS a 6.500 anos-luz, com um erro notavelmente pequeno de mais ou menos 90 anos-luz.
Uma conquista impressionante para a astronomia estelar, a distância medida pelo eco também estabelece com mais precisão o verdadeiro brilho do RS Pup e, por extensão, outras estrelas Cefeidas, melhorando o conhecimento das distâncias das galáxias além da Via Láctea.
Imagem Direitos autorais: NASA
Telescópio Espacial Hubble
(NASA)
Texto: Júlia Machado
Pingback: Google
Pingback: best online casino for money
Pingback: golden nugget online casino
Pingback: online casino usa
Pingback: best casino online
Pingback: casino games win real money
Pingback: auto car insurance quotes
Pingback: car insurance quotes online
Pingback: car insurance quotes in nj
Pingback: pfister viagra
Pingback: insurance quotes online comparison
Pingback: car insurance florida
Pingback: best car insurance
Pingback: gap insurance quotes
Pingback: car insurance quotes renewal
Pingback: accurate automotive
Pingback: direct general car insurance quotes
Pingback: personal loans knoxville tn
Pingback: emergency payday loans
Pingback: bad credit payday loans
Pingback: quick loans nj
Pingback: bad credit loans with bad credit
Pingback: payday loans payday loans
Pingback: online personal loans florida
Pingback: cbd oil benefits bloods
Pingback: where can you buy cbd oil
Pingback: can cbd oil help with pain?
Pingback: cbd oil for sale in colorado springs
Pingback: generic viagra me uk
Pingback: cbd oil for sale georgia
Pingback: cbd oil vs hemp oil comparison
Pingback: how to make cbd oil
Pingback: pure cbd oil for pain relief
Pingback: cbd oil 300mg
Pingback: free research paper writer
Pingback: buy viagra in chicago
Pingback: essay writing services reviews
Pingback: assignment of benefit
Pingback: argumentative essay writer
Pingback: buy nothing day essay
Pingback: essay paper writing service
Pingback: how to write an essays
Pingback: college paper writers
Pingback: write essays online
Pingback: good essay writing service
Pingback: cleocin purchase
Pingback: clomid generic
Pingback: clonidine 0,1mg purchase
Pingback: clozaril united kingdom
Pingback: cheap colchicine 0,5 mg
Pingback: symbicort inhaler otc
Pingback: how to purchase combivent
Pingback: coreg pills
Pingback: compazine 5 mg for sale
Pingback: coumadin generic
Pingback: cozaar 50mg without prescription
Pingback: viagra in singapore clinic
Pingback: crestor without a doctor prescription
Pingback: cymbalta without prescription
Pingback: dapsone 1000caps nz
Pingback: ddavp usa
Pingback: buy depakote
Pingback: diamox usa
Pingback: differin 15g otc
Pingback: diltiazem 30 mg price
Pingback: doxycycline 100 mg medication
Pingback: cheap dramamine 50 mg
Pingback: elavil without prescription
Pingback: cost of erythromycin 250 mg
Pingback: etodolac 400 mg united states
Pingback: flomax 0,4 mg over the counter
Pingback: flonase nasal spray without a doctor prescription
Pingback: garcinia cambogia 100caps pills
Pingback: geodon 20mg cost
Pingback: buy hyzaar 12,5 mg
Pingback: imdur 20mg prices
Pingback: imitrex 50 mg generic
Pingback: cheap imodium 2mg
Pingback: go to my site
Pingback: imuran without a prescription
Pingback: c4rasr4as4cae
Pingback: indocin cost
Pingback: lamisil without a prescription
Pingback: levaquin 750 mg pharmacy
Pingback: lopid usa
Pingback: lopressor prices
Pingback: luvox 50 mg no prescription
Pingback: macrobid 100mg cheap
Pingback: buy meclizine 25 mg
Pingback: mestinon pills
Pingback: how to buy micardis 40 mg
Pingback: mobic purchase
Pingback: motrin 400 mg online
Pingback: nortriptyline 25mg australia
Pingback: pfizer viagra coupon
Pingback: cheapest periactin 4mg
Pingback: phenergan 25 mg uk
Pingback: plaquenil coupon
Pingback: prednisolone 20 mg price
Pingback: prevacid 30 mg tablets
Pingback: prilosec without prescription
Pingback: proair inhaler generic
Pingback: procardia cheap
Pingback: protonix medication
Pingback: viagra or cilis
Pingback: provigil 100 mg without prescription
Pingback: pulmicort no prescription
Pingback: pyridium 200 mg usa
Pingback: reglan 10 mg price
Pingback: remeron 15mg price
Pingback: retin-a cream purchase
Pingback: how to purchase revatio 20 mg
Pingback: risperdal usa
Pingback: robaxin 500mg canada
Pingback: order rogaine 5%
Pingback: cheap seroquel
Pingback: singulair tablet
Pingback: skelaxin 400mg without a prescription
Pingback: spiriva 9 mcg without a prescription
Pingback: tenormin without prescription
Pingback: cost of thorazine
Pingback: how to purchase toprol
Pingback: tricor 160 mg without a prescription
Pingback: valtrex medication
Pingback: vantin 100mg tablet
Pingback: verapamil nz
Pingback: voltaren 50 mg price
Pingback: wellbutrin 150 mg cost
Pingback: zanaflex 2mg no prescription
Pingback: should i buy cialis from canada
Pingback: go to website
Pingback: zocor coupon
Pingback: zovirax prices
Pingback: order zyloprim
Pingback: viagra quiz
Pingback: zyprexa without a doctor prescription
Pingback: zyvox 600 mg canada
Pingback: sildenafil over the counter
Pingback: tadalafil over the counter
Pingback: furosemide 100 mg canada
Pingback: escitalopram united kingdom
Pingback: aripiprazole tablet
Pingback: pioglitazone online pharmacy
Pingback: spironolactone cost
Pingback: fexofenadine 180mg purchase
Pingback: glimepiride cheap
Pingback: meclizine nz
Pingback: leflunomide 20 mg tablets
Pingback: atomoxetine 18mg without a prescription
Pingback: order donepezil 10mg
Pingback: anastrozole 1 mg over the counter
Pingback: irbesartan 300mg nz
Pingback: dutasteride australia
Pingback: 34cr4rxq3crq34rq3r4
Pingback: olmesartan otc
Pingback: buspirone 10mg generic
Pingback: clonidine 0.1mg medication
Pingback: cefuroxime for sale
Pingback: citalopram 10 mg nz
Pingback: cephalexin without a doctor prescription
Pingback: ciprofloxacin purchase
Pingback: clozapine 100mg usa
Pingback: does viagra make you last longer
Pingback: prochlorperazine 5mg otc
Pingback: carvedilol 25 mg prices
Pingback: warfarin pills
Pingback: stray kids merch
Pingback: rosuvastatin pills
Pingback: cost of divalproex 250mg
Pingback: tolterodine pills
Pingback: buy acetazolamide 250 mg
Pingback: c34r54wxw4r34c3
Pingback: how to purchase fluconazole 50 mg
Pingback: phenytoin online
Pingback: oxybutynin 2.5mg tablets
Pingback: buy doxycycline
Pingback: bisacodyl 5 mg uk
Pingback: viagra generic availability
Pingback: venlafaxine price
Pingback: galaforex
Pingback: offerweightloss.com lose weight fast
Pingback: amitriptyline 50mg online
Pingback: twitter login on chrome
Pingback: permethrin 30g medication
Pingback: buy bulk cialis from canada online
Pingback: erythromycin price
Pingback: where can i buy estradiol
Pingback: 인싸포커
Pingback: buy etodolac
Pingback: kienthucfx
Pingback: vuhxowoy
Pingback: buy fluticasone mcg
Pingback: silencil medical reviews
Pingback: texas poker
Pingback: alendronate 35 mg online pharmacy
Pingback: bare knuckle
Pingback: how long does it take cialis to start working
Pingback: nitrofurantoin 100mg online
Pingback: wat doet een viagra pil
Pingback: what is azithromycin 500 mg used for
Pingback: glipizide australia
Pingback: Dresses in the usa
Pingback: platformes ecommerce
Pingback: kako deluje viagra
Pingback: best car battery
Pingback: elevated dog beds
Pingback: https://www.vvip96.net
Pingback: home of the year
Pingback: t-shirts men
Pingback: cut files
Pingback: isosorbide for sale
Pingback: appartement
Pingback: romanticnight.eu
Pingback: romantic night at home
Pingback: cbd for dogs
Pingback: https://www.juneauempire.com/marketplace/best-cbd-for-dogs-with-pain-top-3-picks-2020/ best cbd for dogs
Pingback: cbd oil
Pingback: cbd for dogs
Pingback: inspirational quotes
Pingback: generic cialis canada
Pingback: viagra
Pingback: cheapest azathioprine
Pingback: best cbd gummies
Pingback: cbd oil for dogs
Pingback: best cbd gummies
Pingback: best cbd for dogs
Pingback: best cbd oil
Pingback: propranolol 40mg online pharmacy
Pingback: he said
Pingback: billing software
Pingback: astronomy 365
Pingback: gene-vihodsef
Pingback: precio de viagra en farmacia
Pingback: hills dog treats
Pingback: next day viagra delivery
Pingback: afrocentrism
Pingback: waterproofers near baltimore
Pingback: best cbd
Pingback: essay writing service canada
Pingback: cbd dog treats
Pingback: cbd for dogs
Pingback: cbd gummies for sale
Pingback: how to write a research introduction
Pingback: cbd gummies for pain
Pingback: buy instagram followers
Pingback: what should i write about for my college essay
Pingback: can someone help me write an essay
Pingback: best cbd dog treats
Pingback: dog
Pingback: business ethics and sustainability essay
Pingback: best cbd gummies for sleep
Pingback: withdraw online casino malaysia
Pingback: best cbd gummies
Pingback: 토토사이트
Pingback: IPTV Smarters roku tv