aThe relationships among a star’s color, temperature, and brightness are shown in this H-R diagram. Stars in the upper left are hot, bright stars, and stars in the lower right are cool, dim stars. Classify Which type of star shown in the diagram is the hottest, dimmest star? 关系在...
KATHLEEN RIZZO YOUNG
PITTSBURGH – Yasmani Grandal has been swinging one of the hottest bats on the Pirates over the last month or so, something he credits to getting hitting advice from a new source: His son, Rhyatt. “My 3-year-old keeps telling me to hit homers,” Grandal said. “Every time he’s sai...
acquire high skills in needlecraft, as well as hoping to find satisfactory husbands. In the evening, people sit outdoors to observe the stars. Chinese grannies would say that, if you stand under a grapevine, you can probably overhear what the weaving maiden and her husband are talking about....
New research using data from ESO’s Very Large Telescope has revealed that the hottest and brightest stars, which are known as O stars, are often found in close pairs. Many of such binaries transfer mass from one star to another, a kind of stellar vampirism depicted in this artist’s impr...
It is hard to imagine a place that’s more dangerous than Death Valley. Death Valley is the hottest and the driest place in North America. Death Valley isn’t an easy place to live in. It gets less than two feet of rain year and it’s hot, too. In July, the temperature often rea...
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glows yellow, and the hottest part near the fuel glows blue. Starswork the same way. Their temperatures determine what color theywill be. Thus we can determine how hot a star is just by looking atits color. Like the Sun, these medium(中等的) -sized stars are yellowbecause they have a...
Irish people are on the side of the sky and water Under the blue sky, the water of Guifeng Lake is as clear as a mirror, showing a brilliant blue color. In the distance, surrounded by mountains, lush forests, mountains and mountains, such as picturesque poetry, everywhere, is full of ...