这次的日全食不知大家看了没？我在北京，一大早就阴天，云层巨厚，根本啥也看不见。更何况预报的日食时间我正在公交车上，根本没可能。但是，但是！！我到了办公室，看见同事正在看网上直播，当时都已经九点半了，还有呢！！我就赶紧扑到窗户跟前——外面还是看不见 ：（，真羡慕能看到的朋友~~据说22
日的这次日食是本世纪最长的日全食。最早看见日全食的是印度坎贝湾。日食带穿过印度次大陆、尼泊尔、孟加拉国、不丹和缅甸，从中印边境进入中国，是500年一遇的大日食奇观。此后，我国将在2034年3月20日才能再次目睹日食，但仅西藏、青海等地区能看到全食。无论是可观测城市的数量，还是全食持续时间，都无法与今年即将发生的日全食相比。这么多年我好像只看到过一次日食，那时候是用棕色的啤酒瓶底儿看得好象。可能也有好多朋友没看到日食吧？我秦苏珊认识的朋友的博客上转贴了一篇英文文章，写的是这次看日全食的全程纪录。我转录过来，让大伙重温一下~
The Eclipse Chaser: We Have an Eclipse!
Jay M. Pasachoff
Two stages of a total solar eclipse, seen from the mountains of China.
By Jay M.Pasachoff
Thelongest total solar eclipse this century started in India, sweepingeast across China and into the Pacific Ocean. Blogging about the eventfor TierneyLab is Jay M. Pasachoff, a Williams College astronomer whois chasing the eclipse from a mountain outside Hangzhou, China.
9:49 a.m. Wednesday (9:49 p.m. Tuesday, E.D.T.)
Wesaw it! The clouds kept getting thinner, and we even had a prettygood-sized hole in the clouds for the five minutes of totality. Soeveryone saw all the coronal phenomena. The diamond rings werespectacular. Just before totality, the clouds were just the rightthickness that allowed us to see partial phases without filters.
Allour equipment and those collaborating on our terrace here inTianhuangping seems to have worked, so now we still have an hour or soof partial eclipse to image, and then we will download photos and startlooking at them. The oscillation experiment has a lot of data throughtwo filters, and we will assess later whether comparison of the twochannels allow us to account for the cloud cover.
It was wonderful.
9:07 a.m. (9:07 p.m. Tuesday, E.D.T.)
Inhalf an hour, we’ll be in the midst of totality. The sun has come andgone a bit, through clouds and behind clouds, but we mostly have sun.We remain hopeful that we can see and photograph the corona. When wehave lost view of the sun, it has been for a couple of minutes only,and this is, after all, a 5 1/2 minute eclipse.
8:05 a.m. (8:05 p.m. E.D.T.)
Wehave an eclipse! It is four minutes past first contact, and we can allclearly see a bite out of the top of the Sun, at about 11 o’clockorientation. The sky is hazy, but we can see the shape of the Sun veryclearly through the haze. We should see the corona very well, if thissky condition continues.
7:33 a.m. (7:33 p.m. E.D.T.)
Just two hours before totality, and the Sun is out! It is still through clouds, but the sky is definitely improving.
7:00 a.m. (7 p.m. Tuesday, E.D.T.)
Thesky is a little brighter, but there are still two layers of clouds. Atleast we can see structure in the clouds, and we hear that there issome clearing behind the front that is now passing through. We have 21/2 hours to go.
Thoughwe can’t see the eclipse visually if the sky is completely cloudy, wedo have one meteorological experiment that will work anyway. We will bemeasuring the temperature falloff that results from the eclipse.Michael Thomas Roman, a grad student from Cornell, and Marcos Peñaloza,a professor from Universidad de los Andes in Mérida, Venezuela, arehere with us, and Michael as brought some devices to follow thetemperature. At last year’s eclipse, Joe Ciotti, a college student fromHawaii, measured the temperature just under the ground and at a fewcentimeters above the ground. The temperature in the part of theeclipse path in China where they were dropped by about 10 degreesFahrenheit over what it would have declined to in the late afternoonfor that eclipse, reaching a low point about 10 minutes after the endof totality (the expected thermal lag), and then rising again. Marcosand Michael spent a lot of time walking around a few days ago to findthe right place for their sensors. 
