The woman behind the famous astronomers of Hubble: hengliaita-Swan-loewith-IT information

According to foreign media reports, hengliaita-Swan-loewith was a Harvard University "Calculator" (in the early 1900 's, there were many women participated in the study through the photographic properties of stars, she is the one), in 1907 to 1921 (and death) discovered about 2400 years variable star, throughout the world. Loewith also found that some of these stars, which is now known as Cepheids, no matter where they are located, and brightness changes are very consistent, which is a pretty good day. It was her job to help United States astronomer aidewen·Habo in the 1920 's measurements of Galaxy distances, which made him realize that the universe is expanding.

Loewith was born on July 4, 1868, was educated at Oberlin College and Radcliffe College of Harvard University (then known as the "Association of women's University education"). First she serves as volunteer Assistant in Harvard College Observatory, then in 1907 employed by Director Edward Charles Pickering. Loewith work through to get a negative reply on the other card in order to make the comparison to analyze changes in the brightness of stars. She found some star regardless of location, period (the brightness of the star changed relationship between the cycle and the brightness itself) is very consistent, so you can easily calculate their distance from the Earth. No longer have to guess the distances of astronomical objects, we can more accurately measure them. With loewith stars of Miss qiaozhi·yuehanxun, author of the book as saying, loewith had become "the woman who discovered how to measure the universe."

But according to reports, loewith was almost not be honor for her work. Pickering published her findings, but using his own name, just say loewith finishing under information. A few years later, new Director of haluo·shapuli by loewith work to calculate the distances to the stars around the milky way, nor give loewith too much in return. "Almost no one knew anything about hengliaita·leweite itself to be ultra vires the feelings, she is a shy and unassuming man. And the women, even the highly educated, even talented, they are often willing to secondary roles, quietly grateful for anything. In a fairer world, they were on an equal footing with men. "The United States Association of variable stars observers says.

Loewith to an unknown astronomer who died in 1921. After her death, her findings quickly led to a new understanding of the universe. In addition to Shapley's work, another United States astronomer aidewen·Habo, loewith information is used to help understand the closest large Galaxy, the Andromeda Galaxy (M31) distance. In 1920 he was substitute Cepheid determines the distance between the Andromeda Galaxy 2.5 million light-years, the Galaxy is clearly far outside the boundaries of the milky way. In other words, Hubble's universe there are other galaxies like our Milky Way Galaxy. He then measured DS stars "red shift", found in the expansion of the universe.

Institute of aerospace history myitsone mentioned in an article: "loewith found that is so important in 1924, Sweden gesita-Teknik-liefule of the Academy of Sciences elected Nobel Prize had tried to appoint her. Unfortunately, hengliaita died of cancer three years ago, the Nobel Prize is not awarded to the deceased. "Cepheids are now being used to help us understand the object's distance. With the continuous improvement of celestial photography, these distances are constantly being improved. A famous example is the 2012 found North Star closer than originally expected about 100 light-years from Earth.

著名天文学家哈勃背后的女人：亨丽爱塔-斯万-勒维特 - IT资讯

据国外媒体报道，亨丽爱塔-斯万-勒维特是一名哈佛大学“计算器”（在1900年代早期，有许多女性参与了通过照相底片来研究恒星基本性质的工作，她便是其中之一），她在1907到1921（卒年）年间发现了约2400颗变星，因此而闻名于世。勒维特还发现其中有一些恒星，即如今称之为的造父变星，无论它们位于哪里，亮度变化关系都很一致，因而是一把相当好的量天尺。正是她的这个工作帮助美国天文学家爱德文·哈勃得以在1920年代测量星系的距离，从而使他意识到宇宙在膨胀。

勒维特出生于1868年7月4日，曾就读于欧柏林学院和哈佛大学附属的拉德克利夫学院（当时称为“女子大学教育协会”）。她先是在哈佛大学天文台担当志愿助理，随后在1907年受雇于台长爱德华·查尔斯·皮克林。勒维特当时的工作主要是通过把一张底片覆在另一张上，以做比较来分析得出恒星的亮度变化。她发现一些恒星无论位于何处，周光关系（恒星的亮度变化周期与亮度本身之间的关系）都很一致，这样就很容易能够算出它们到地球的距离。于是不用再胡乱猜测天体的距离，现在我们可以更精确地测量它们了。用《勒维特小姐的星星》一书的作者乔治·约翰逊的话说，勒维特已成为“发现如何测量宇宙的女人”。

然而据报道，勒维特在当时几乎并没有因她的工作而受到什么荣誉。皮克林发表了她的发现，但用的是他自己的名字，只是提了下说是勒维特整理的资料。几年后，新台长哈罗·沙普利利用勒维特的工作算出了银河系周围恒星的距离，也没有给勒维特太多回报。“几乎无人知道亨丽爱塔·勒维特自己对被越权这件事的感受，她是一个害羞且谦逊的人。并且当时的女性，即便是受过高等教育，即便是才华横溢，她们都常常自甘于次要角色，平静地感恩于所给予的任何事物。如果在一个更公平的世界里，她们便能够与男性平起平坐了。”美国变星观察者协会称。

勒维特以一个默默无闻的天文学家逝世于1921年。在她死后，她的发现很快引发了对宇宙的一个新的认识。除了沙普利的工作之外，另一个美国天文学家爱德文·哈勃，也用勒维特的资料来帮助了解离地球最近的大星系，仙女星系（M31）的距离。他在1920年代用造父变星确定了仙女星系的距离是250万光年，明确了该星系远在银河系边界之外。换句话说，哈勃认为宇宙中还有其它像我们银河系一样的星系。随后，他通过测量退行恒星的“红移”，发现了宇宙在膨胀。

航空航天史密松学会的一篇文章中提到：“勒维特的发现是如此重要，1924年瑞典科学院的哥斯塔-米塔-列夫勒曾试图提名她获选诺贝尔奖。不幸的是，亨丽爱塔三年前死于癌症，而诺贝尔奖是不追授给逝者的。”造父变星如今仍被用于帮助我们了解天体的距离。随着天体照相技术的持续改进，这些距离也在不断完善。一个著名的例子是，2012年发现北极星离地球比原先预想的要近大约100光年。