APOD240908 M31:仙女大星系
M31:仙女大星系
影像提供: Subaru[1] (NAOJ[2]), Hubble[3] (NASA[4]/ESA[5]), Mayall[6] (NSF[7]);
Processing & Copyright: R. Gendler[8] & R. Croman[9]
说明: 人类肉眼能轻易见到的最远天体是,M31[10] (仙女大星系[11]),离我们有2百多万光年[12]远。 不过,如果没借助于望远镜,这个跨幅超过[13]200,000 光年[14]的庞大螺旋星系[15],看起来只是仙女座的一团不起眼的暗淡弥漫云气。 在这幅集成了轨道哈伯[16]及地面昴宿[17]及梅奥望远镜[18]影像数据的精采影像[19]里,仙女大星系明亮的泛黄星系核、蜿蜒黝黑的尘埃带[20]、明亮的宽广泛蓝[21]螺旋臂、与泛红的发射星云[22]皆历历在目。 再过约50亿年,仙女大星系[23]或许会更加容易观测[24],因为在它与我们银河系合并[25]或穿过[26]银河系之前,它会占满整个夜空。
Teachers & Students: Ideas for using APOD in the classroom[27]
明日的图片: open space[28]
Authors & editors: Robert Nemiroff[29] (MTU[30]) & Jerry Bonnell[31] (UMCP[32])
NASA Official: Amber Straughn Specific rights apply[33].
NASA Web Privacy[34], Accessibility[35], Notices[36];
A service of: ASD[37] at NASA[38] / GSFC[39],
NASA Science Activation[40]
& Michigan Tech. U.[41]
翻译:苏汉宗 Su, Han-Tzong[42] (成功大学[43] 物理学系[44]
[1]https://www.naoj.org/en/about/
[3]http://hla.stsci.edu/hla_welcome.html
[6]https://noirlab.edu/public/programs/kitt-peak-national-observatory/nicholas-mayall-4m-telescope/
[8]http://robgendlerastropics.com/Biography2.html
[9]https://www.rc-astro.com/about.html
[10]https://en.wikipedia.org/wiki/Andromeda_Galaxy
[12]https://spaceplace.nasa.gov/light-year/en/
[13]http://apod.nasa.gov/apod/ap061228.html
[14]https://spaceplace.nasa.gov/light-year/en/
[15]http://www.hawastsoc.org/deepsky/and/index.html
[16]https://science.nasa.gov/mission/hubble/overview/about-hubble/
[17]https://subarutelescope.org/en/
[18]https://noirlab.edu/public/programs/kitt-peak-national-observatory/nicholas-mayall-4m-telescope/
[19]http://www.robgendlerastropics.com/M31-HST-Subaru-NOAO-RC.html
[20]http://apod.nasa.gov/apod/ap220117.html
[21]http://apod.nasa.gov/apod/ap211124.html
[22]http://apod.nasa.gov/apod/ap210214.html
[23]https://imagine.gsfc.nasa.gov/science/objects/milkyway1.html
[24]https://wallpaperaccess.com/full/621501.jpg
[25]http://apod.nasa.gov/apod/ap220606.html
[26]https://www.science.org/content/article/milky-way-may-escape-fated-collision-andromeda-galaxy
[27]https://apod.nasa.gov/apod/lib/apodclass.html
[28]http://apod.nasa.gov/apod/ap240909.html
[29]http://www.phy.mtu.edu/faculty/Nemiroff.html
[31]https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
[33]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[34]https://www.nasa.gov/about/highlights/HP_Privacy.html
[35]https://www.nasa.gov/general/accessibility/
[36]https://www.nasa.gov/privacy/
[37]https://astrophysics.gsfc.nasa.gov/
[39]https://www.nasa.gov/centers/goddard/
[40]https://science.nasa.gov/learners
[42]mailto: hantzong.su @at gmail dot com(去掉at及空格並把dot換成
[44]https://www.phys.ncku.edu.tw/
http://apod.nasa.gov/apod/ap240908.html
http://sprite.phys.ncku.edu.tw/astrolab/mirrors/apod/ap240908.html