update readme

README.md

@@ -12,12 +12,13 @@ from 1901 to 2100. It is the most trustworthy Lunar Calendar I can find on the
 web so far.
 
 Lunar calendar beyond 1901-2100 range is generated by finding solar terms and
-moon phases uses [VSOP87](ftp://ftp.imcce.fr/pub/ephem/planets/vsop87) planetary theory and [LEA-406][] lunar theory.
+moon phases uses [VSOP87](ftp://ftp.imcce.fr/pub/ephem/planets/vsop87) planetary
+theory and [LEA-406][] lunar theory.
 
 The full version of LEA-406 and VSOP87 are used by default. A truncated version
-, aa.py, also included. The full version is slightly slower than the truncated
-version. Their accuracy of finding apparent Sun and Moon longitude compare to
-the DE431 based JPL Horizon are showed in following figures.
+, aa.py, is also included. The full version is slightly slower than the
+truncated version. Their accuracy of finding apparent Sun and Moon longitude
+compare to the DE431 based JPL Horizon are showed in following figures.
 
 ![aa_full][]
 ![aa_trunc][]
@@ -85,7 +86,6 @@ calendar, thunderbird + lightning插件, iphone/ipad, 安卓都支持。
 账户的ios设备。
 
 
-
 ### 生成更长时段农历
 
 如果需要更长时段的农历，可以下载`lunar_ical.py`
@@ -97,6 +97,15 @@ calendar, thunderbird + lightning插件, iphone/ipad, 安卓都支持。
 
     ./lunar_ical.py --start=2010-05-01 --end=2021-12-31
 
+超出1901-2100的农历数据使用VSOP87行星理论和LEA-406月球理论生成. 以香港天文台的
+数据为标准，用此法生成的1949到2100年间农历有两处不一致：
+
+ 1）1979-01-20 大寒
+
+ 2）2057-09-29 农历九月全部日期错位一天
+
+上面两处节气及新月正好在午夜时分，数秒的计算误差就能决定该节气或新月属于前日深
+夜还是次日凌晨。
 
 ### 版权
 

lunar_ical.py

@@ -406,7 +406,7 @@ def verify_lunarcalendar():
             for x in aalc:
                 print x[0], x[1]
         for i in xrange(len(aalc)):
-            aaday, aaldate = aalc[i]
+            aaday, aaldate = aalc[i]['date'], aalc[i]['lunardate']
             hkoday, hkoldate = hko[i]
             #print aaday, aaldate
             if aaday != hkoday or aaldate != hkoldate: