Free_Astronomy_-_SeptemberOctober_2019

THE FREE MULTIMEDIA MAGAZINE THAT KEEPS YOU UPDATED ON WHAT IS HAPPENING IN SPACE Bi-monthly magazine of scientific and technica ...

Dall Kirkham 350 mm f/ 20 23 % obstruction Supremax 33 precision optics from Schott Carbon structure - 18 - point floating cell ...

Editor in chief Michele Ferrara Scientific advisor Prof. Enrico Maria Corsini Publisher Astro Publishing di Pirlo L. Via Bonomel ...

4 ASTROBIOLOGY K dwarfs, the besttarget for biosignatures by Michele Ferrara revised by Damian G. Allis NASA Solar System Ambass ...

J ust over 10 , 000 days have passed since the discovery of the first exoplanet, and the 4 , 000 so far confirmed among the 3 , ...

6 With all the research programs focused on identifying potentially habitable or inhab- ited planets, the overall goal was to se ...

ASTROBIOLOGY 7 numberof “candidate Earths” have been discovered around this type of dwarf. Among the 18 Earth-size exoplanets kn ...

planets destined to permanently orbit in the habitable zone of M dwarfs when the stars reach the main sequence. In fact, even be ...

ASTROBIOLOGY 9 Not being able to realistically imagine life other than as we know it on our planet, as- tronomers will look for ...

10 ASTROBIOLOGY than today. Instead, there was still no trace of biogenic oxygen, whose production would have started about a ha ...

ASTROBIOLOGY 11 notice an abnormal abundance of oxygen and methane compared to atmospheric models for planets like ours in syste ...

with the results recently appearing in The Astrophysical Journal Letters. The first rea- son for preferring K dwarfs is because ...

13 a computer model to simulate the chem- istry and temperature of planetary atmos- pheres and to figure out how they respond to ...

14 SPACE CHRONICLES La Silla 50 th anniversary culminates with total solar eclipse by ESO A t 16 : 40 CLT, the Moon covered the ...

15 SPACE CHRONICLES the Chilean Ministry of Education. The students had to write a letter where they explained their interest in ...

16 SPACE^ CHRONICLES A mong the visitors who came to ESO’s La Silla Observatory to view a total solar eclipse on 2 July 2019 wer ...

SPACE CHRONICLES 17 T he visitors ranged from local school chil- dren to international tourists, brought together to view the un ...

18 SPACE^ CHRONICLES most of the world’s current large tel- escopes. The ESO 3. 6 - metre tele- scope is now home to the world’s ...

SPACE CHRONICLES 19 As the eclipse itself only occurred during the late afternoon, for the rest of the day visitors enjoyed a wi ...

20 SPACE CHRONICLES by IAC The early days of the Milky Way revealed by Gaia E arly days of the Milky Way, artist impression. [Ga ...