mca 發表於 2010-8-6 00:03:32

黃道光 (圖解)

幾十年前我或者見過黃道光(?)，今見同好 鄧銳禎在澳洲天文聖地 Coonabarabran (31S, 149E) 的靚天拍到黄道光，難得!特為文記之。(原圖在 http://forum.hkas.org.hk/viewthread.php?tid=4415&extra=page%3D1)


      圖一
      http://forum.hkas.org.hk/web/Zodiacal_dust_disks.jpg


      圖二
      http://forum.hkas.org.hk/web/Zodiacal_light_Tang_1.jpg


      圖三
      http://forum.hkas.org.hk/web/Zodiacal_light_Tang_2.jpg

mca 發表於 2010-8-6 00:50:11

美麗黄道光照片:

Zodiacal light + the Milky Way
http://apod.nasa.gov/apod/ap100320.html

Zodiacal Light over La Silla, Chile
http://www.eso.org/public/images/zodiacal_beletsky_potw/

最新研究:

Virtually all the dusts come from short-period comets, with a little contribution from Oort Cloud comets. No more than 10% of it can be coming from the asteroid belt !
http://www.skyandtelescope.com/community/skyblog/newsblog/87336457.html
http://news.sciencemag.org/sciencenow/2010/04/researchers-solve-the-mystery-of.html

51 Ophiuchi is a protoplanetary system with a dust cloud that orbits extremely close to its parent star,
http://keckobservatory.org/index.php/news/KIN_2009/
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