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宇宙

6 件の記事

Deneb is the brighest star in the constellation of Cygnus (top)

デネブ白鳥座を彩る青色超巨星の謎と魅力

デネブ白鳥座青色超巨星夏の大三角
Probable lunar occultations of Venus, 2020 to 2060. These are calculated by a simple method that may include some near occultations. The blue points represent occultations closer to the moon's ascending node while the red are closer to the descending node. Note the series of five in 2054, which have been checked.

金星の掩蔽月が金星を隠す天体現象のメカニズムと歴史

金星掩蔽天文学
In this schematic diagram, time passes from left to right, with the universe represented by a disk-shaped "slice" at any given time. Time and size are not to scale. To make the early stages visible, the time to the afterglow stage (really the first 0.003%) is stretched and the subsequent expansion (really by 1,100 times to the present) is largely suppressed.

宇宙の構造と進化ビッグバンからダークエネルギーまで

宇宙ビッグバンダークマターダークエネルギー
"Astronomy"Richard Proctor as caricatured by Spy in Vanity Fair, 3 March 1883

リチャード・アンソニー・プロクター天文学の普及に捧げた生涯と火星研究

リチャード・アンソニー・プロクター天文学火星地図科学普及
The night side of the Moon, illuminated by earthshine, becomes visible next to the narrow crescent (11 percent, age of the Moon = 3.3 days) with ash-grey moonlight.

アースシャイン(地球照)が照らす月の神秘的な夜

アースシャイン地球照天文学
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