#виски годный, советую

Driving to the Sun

How long would it take to drive to the Sun? Brittany age 7, and D.J. age 12, ponder this question over dinner one evening. James also age 7, suggests taking a really fast racing car while Christopher age 4, eagerly agrees. Jerry, a really old guy who is used to estimating driving time on family trips based on distance divided by speed, offers to do the numbers. "Let's see ... the Sun is 93 million miles away. If we drove 93 miles per hour the trip would only take us 1 million hours." How long is 1 million hours? One year is 365 days times 24 hours per day, or 8,760 hours. One hundred years would be 876,000 hours, but that's still a little short of the 1 million hour drive time. So the Sun is really quite far away. Christopher is not impressed, but as he grows older he will be. You've got to be impressed by something that's 93 million miles away and still hurts your eyes when you look at it!

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Orion Nebula in Oxygen, Hydrogen, and Sulfur    

Few astronomical sights excite the imagination like the nearby stellar nursery known as the Orion Nebula. The Nebula's glowing gas surrounds hot young stars at the edge of an immense interstellar molecular cloud. Many of the filamentary structures visible in the featured image are actually shock waves - fronts where fast moving material encounters slow moving gas. The Orion Nebula spans about 40 light years and is located about 1500 light years away in the same spiral arm of our Galaxy as the Sun. The Great Nebula in Orion can be found with the unaided eye just below and to the left of the easily identifiable belt of three stars in the popular constellation Orion. The image shows the nebula in three colors specifically emitted by hydrogen, oxygen, and sulfur gas. The whole Orion Nebula cloud complex, which includes the Horsehead Nebula, will slowly disperse over the next 100,000 years.

https://ift.tt/2GB0bRc  #apod

Сегодня был переворот у меня тут #железо

Теперь так #железо

Давно пора было вертикально поставить мониторы. Правда поменять их придётся всё-таки.  Как минимум левый, ибо там угол обзора никакой. Ну или купить влево новый фуллхд а ленвый повесить вверх, на старое место. #железо

NGC 5643: Nearby Spiral Galaxy from Hubble    

What's happening at the center of spiral galaxy NGC 5643? A swirling disk of stars and gas, NGC 5643's appearance is dominated by blue spiral arms and brown dust, as shown in the featured image taken by the Hubble Space Telescope. The core of this active galaxy glows brightly in radio waves and X-rays where twin jets have been found. An unusual central glow makes M106 one of the closest examples of the Seyfert class of galaxies, where vast amounts of glowing gas are thought to be falling into a central massive black hole. NGC 5643, is a relatively close 55 million light years away, spans about 100 thousand light years across, and can be seen with a small telescope towards the constellation of the Wolf (Lupus).

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Mars Approach 2020    

Look to the east just after sunset tonight and you'll see a most impressive Mars. Tonight, Mars will appear its biggest and brightest of the year, as Earth passes closer to the red planet than it has in over two years -- and will be again for another two years. In a week, Mars will be almost as bright -- but at opposition, meaning that it will be directly opposite the Sun. Due to the slightly oval shape of the orbits of Mars and Earth, closest approach and opposition occur on slightly different days. The featured image sequence shows how the angular size of Mars has grown during its approach over the past few months. Noticeably orange, Mars is now visible nearly all night long, reflecting more sunlight toward Earth than either Saturn or Jupiter. Even at its closest and largest, though, Mars will still appear over 100 times smaller, in diameter, than a full moon.

https://ift.tt/33yN8cn  #apod

# ls -l `which java`
lrwxrwxrwx 1 root root 22 Oct  6 15:04 /usr/bin/java -> /etc/alternatives/java
# ls -l /etc/alternatives/java
lrwxrwxrwx 1 root root 46 Oct  6 15:04 /etc/alternatives/java -> /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
# ls -l /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
lrwxrwxrwx 1 root root 46 Jun 20  2018 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java -> /usr/lib/jvm/java-8-openjdk-amd64/bin/fakejava
# ls -l /usr/lib/jvm/java-8-openjdk-amd64/bin/fakejava
lrwxrwxrwx 1 root root 9 Jun 20  2018 /usr/lib/jvm/java-8-openjdk-amd64/bin/fakejava -> /bin/true

#astralinux #astralinuxsmolensk #жесть

Mare Frigoris

Lighter than typically dark, smooth, mare the Mare Frigoris lies in the far lunar north. Also known as the Sea of Cold, it stretches across the familiar lunar nearside in this close up of the waxing gibbous Moon's north polar region. Dark-floored, 95 kilometer wide crater Plato is just left of the center. Sunlit peaks of the lunar Alps (Montes Alpes) are highlighted below and right of Plato, between the more southern Mare Imbrium (Sea of Rains) and Mare Frigoris. The prominent straight feature cutting through the mountains is the lunar Alpine Valley (Vallis Alpes). Joining the Mare Imbrium and Mare Frigoris, the lunar valley is about 160 kilometers long and up to 10 kilometers wide.

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#мастерская