天文望遠鏡能讓我們看到月亮上的腳印嗎？

[peter]

天文望遠鏡能讓我們看到月亮上的腳印嗎？  https://kknews.cc/zh-tw/science/abvgl6v.html

天文望遠鏡的最小解析度單位是角秒，用數學來表示的話即：1°(度)= 60 '(角分)= 60 * 60 (角秒)，而哈伯望遠鏡的極限解析度是0.1角秒左右。如果想在地球上看月球上一個大小1米的物體，則需要大約0.0005角秒。

原文網址：https://kknews.cc/science/abvgl6v.html


 電波望遠鏡解析度

https://familystar.org.tw/forum/index.php?topic=6586.0;

[peter]

gmt
https://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=21710.0

巨型麥哲倫望遠鏡 GMT解析度將是哈伯太空望遠鏡的10倍

http://familystar.org.tw/index.php?option=com_smf&Itemid=3&topic=18093.0;



gmt
Angular resolution   0.01 arcsecond

vlt
Angular resolution   0.002 arcsecond

hubble  0.014 arc seconds  ?


30m  => https://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=20330.0
What is the resolution of a Thirty Metre telescope? -  
https://www.quora.com › What-is-the-resolution-of-a-Th...
The resolution is 0.004 arc-seconds and an arc-second is 1/3600 of a degree


ELT under ideal conditions has an angular resolution of 0.005 arcsecond
 which corresponds to separating two light sources 1 AU apart from 200 pc (650 ly) distance, or two light sources 30 cm apart from roughly 12,000 km distance.
https://en.wikipedia.org/wiki/Extremely_Large_Telescope


wiki
https://en.wikipedia.org/wiki/Angular_resolution