Sky and telescope magazine subscription11/13/2023 ![]() ![]() Tomorrow: naming the planets in other star systems. It’s been burning through the hydrogen for four and a half billion years, and it’ll keep doing so for at least five billion years longer - powered by its own giant nuclear reactor. Please note that this registration provides full access to the website, but will not give you access to your subscription account. The other five million tons are converted to energy - and that’s what makes the Sun shine.Įven at that rate of consumption, the Sun has so much hydrogen in its core that it won’t run out any time soon. The core of the Sun, for example, “fuses” 700 million tons of hydrogen every second, producing 695 million tons of helium. The process releases energy - a lot of it. Nuclear fusion combines lighter elements to make heavier ones. The world’s best-selling astronomy magazine Subscribe Today Each issue includes expert science reporting, vivid color photography, complete sky coverage, spot-on observing tips, informative. Subscribe to Sky & Telescope Gift Subscription Renew Subscription. Eventually, it’ll get so hot that fusion reactions will fire up in the helium, making the star even bigger and brighter. Outreach & Youth Programs Outreach and Education Volunteering Dark Sky. Devoted amateurs, professionals, and academics would all find a subscription to Sky & Telescope magazine of interest. At the same time, the core is getting smaller and hotter. Membership Membership Info for New Members General Meeting Videos Special Interest Groups RCA Book Library Telescope Library Discount Magazine. Now, it’s burning the hydrogen in a thin shell around the core. Through nuclear fusion, each has burned through the original hydrogen fuel in its core, converting it to helium. And it’ll stand even closer to the Moon at first light.Īldebaran and El Nath are in the same stage of life - they’re giants. The second-brightest star, El Nath, is closer to the left or lower left of the Moon. The brighter of the two, Aldebaran, is off to the right of the Moon as they climb into good view, about 1 a.m. The two brightest stars of Taurus, the bull, flank the Moon late tonight. ![]()
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