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Sastanak astronoma 1.3.2009. - izvješće
Slobodan Danko Bosanac   
Srijeda, 04 Ožujak 2009
had-sastanak010309.jpgSastanka hrvatskih astronoma
1.3.2009.
Zvjezdarnica Zagreb
Opširnije...
 
Opća teorija relativnosti - pomrčina 1919
Slobodan Danko Bosanac   
Srijeda, 04 Ožujak 2009
bending_light.jpg

Testing relativity from the 1919 eclipse— a question of bias

When interpreting experimental results, context is everything. The researchers who took and analyzed the most important eclipse data had good reasons for judging the experiment a victory for Albert Einstein.

Više

 
Nakupine galaksija i širenje Svemira
Slobodan Danko Bosanac   
Srijeda, 04 Ožujak 2009
sm_14_1fig1.jpg

Galaxy clusters tighten constraints on the cosmic accelerator

Evidence from clusters and elsewhere suggests that the universe’s accelerated expansion is driven by something that behaves like Einstein’s cosmological constant.

Više

 
Asteroidni pojas o migraciji planeta
Slobodan Danko Bosanac   
Petak, 27 Veljača 2009
asteroid_belt.jpg

Nature 457, 1109-1111 (26 February 2009)

A record of planet migration in the main asteroid belt

David A. Minton & Renu Malhotra

  1. Lunar and Planetary Laboratory, University of Arizona, 1629 East University Boulevard, Tucson, Arizona 85716, USA
Opširnije...
 
Otvorena zvjezdarnica Tičan
Slobodan Danko Bosanac   
Petak, 27 Veljača 2009
thumb_tican.jpgZapisi jednog snimatelja-amatera. Ulaz u Kampus Tičan. Panorama budućeg kampusa sa zvjezdarnicom. Kontrolna soba teleskopa. Montirani teleskop.
 
Manifestacija nevidljive materije
Slobodan Danko Bosanac   
Ponedjeljak, 23 Veljača 2009
nevidljiva_materija.jpgDa li je stvaranje antičestica još jedna manifestacija nevidljive materije? Istraživanja njenog svojstva ide i u tom smjeru. Sažetak
 
Projekt Kepler
Slobodan Danko Bosanac   
Ponedjeljak, 23 Veljača 2009
binarni.jpgPočelo odbrojavanje za lansiranje teleskopa u zemljinu orbitu za otkrivanje planeta sličnih Zemlji izvan sustava Sunca. Više o projektu i dodatnih informacija na stranici NASA-e
 
Eksplozija astronomije
Slobodan Danko Bosanac   
Srijeda, 11 Veljača 2009
digital_sky.jpgAmateri u astronomiji.

Astronomy Hits the Big Time

Adrian Cho and Daniel Clery

Science 16 January 2009
Vol. 323.  pp. 332

Slika: APACHE POINT OBSERVATORY, (INSET) GALAXY ZOO PROJECT, ING
(Courtesy of Sloan Digital Sky Survey)

The Sloan Digital Sky Survey's 2.5-meter telescope catalogs all it can see. An amateur found the strange "light echo" known as Hanny's Voorwerp (inset, green) in the mounds of data.

Više...
 
Potraga za životom u Svemiru
Slobodan Danko Bosanac   
Utorak, 10 Veljača 2009
arecibo_naic_big.gifPotraga za životom u Svemiru stara je 150 godina.








                                             više
 
Time to turn off the lights
Slobodan Danko Bosanac   
Četvrtak, 05 Veljača 2009
lightpollution.jpgCities needlessly shine billions of dollars directly into the sky each year and, as a result; a fifth of the world's population cannot see the Milky Way. Malcolm Smith explains why a dark sky has much to offer everyone. Over the past six decades, professional and amateur astronomers have been pioneering efforts to curb light pollution to protect the viability of their observatories. During the 2009 International Year of Astronomy, particularly through the Dark Skies Awareness project1, astronomers can find allies in a common cause to convince authorities and the public that a dark sky is a valuable resource for everyone.

Malcolm Smith
Cerro Tololo Inter-American Observatory, Casilla 603, La Serena, Chile.
Email:  Ova email adresa je zaštićena od spam robota, nije vidljiva ako ste isključili Javascript
Nature 457, 27 (1 January 2009) (za cjeloviti tekst potrebna je pretplata)
 
Preparing high-school physics teachers
Jaša Čalogović   
Srijeda, 04 Veljača 2009

thumb_phy-teachers.jpgBy taking on a significant part of the education of high-school physics teachers, physics departments in the US can inspire their students and help ensure a scientifically educated population.

Read more...

 
Distant planet is an orbiting hell
Slobodan Danko Bosanac   
Petak, 30 Siječanj 2009
distant_planet.jpgAstronomers have observed a planet some 200 light years from Earth that, for a few hours, becomes 700 degrees Celsius (1,300 degrees Fahrenheit) hotter every time its elliptical orbit brings it close to its sun.
pdf Full article
 
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Astronomska slika dana

A Sagittarius Triplet

These three bright nebulae are often featured on telescopic tours of the These three bright nebulae are often featured...