{"id":533,"date":"2021-06-21T00:00:00","date_gmt":"2021-06-20T16:00:00","guid":{"rendered":"http:\/\/192.168.0.100\/?p=533"},"modified":"2023-05-28T06:40:46","modified_gmt":"2023-05-27T22:40:46","slug":"2021%e5%b9%b4-%e9%a6%99%e6%b8%af%e5%85%83%e6%9c%97%e6%9c%88%e8%a1%8c%e8%b7%a1-lunar-analemma-in-yuen-long-hong-kong","status":"publish","type":"post","link":"https:\/\/cwchin.no-ip.com\/?p=533","title":{"rendered":"2021\u5e74 \u9999\u6e2f\u5143\u6717\u6708\u884c\u8de1 Lunar Analemma, in Yuen Long, Hong Kong"},"content":{"rendered":"

2021\u5e74 \u9999\u6e2f\u5143\u6717\u6708\u884c\u8de1 Lunar Analemma, in Yuen Long, Hong Kong<\/u><\/b><\/span>\u00a0<\/span><\/p>\n

Shooting Period \u62cd\u651d\u65e5\u671f: 2021\/5\/21 – 2021\/6\/17 (\u8f9b\u4e11\u5e74\u8fb2\u66c6 \u56db\u6708\u521d\u5341\u65e5 \u81f3 \u4e94\u6708\u521d\u516b\u65e5)<\/p>\n

<\/a><\/div>\n
<\/div>\n

Many years are passed, and finally I done that in 2021.\u00a0 Lunar analemma idea occurred actually when I shooted Sun analemma in 2014.<\/p>\n

Not the same with Sun analemma, which I took in 2014, Sun analemma is taken on same time in days over the year.<\/p>\n

We can photograph the Moon 50 minutes and 29 seconds (1.035028 days) later on successive days, to capture an figure-8 curve in 27 days.\u00a0 This is the Lunar analemma.\u00a0 It will be a bit different in shape in every month, at east or west side and in different countries on the Earth.<\/p>\n

Sidereal month is the time it takes the Moon orbits the Earth to a similar position with 27.321 days.\u00a0 2021\/5\/26 is total lunar eclipse, I can see the red moon.<\/p>\n

The weather condition in Hong Kong is not optimistic, to watch the moon everyday in a month become fairly impossible, so moon is missing in certain days, (new moon is not count as it is invisible).\u00a0 And moon is shooted nearest possible in cloudy or rainy days in a daily basis.<\/p>\n

Final photo is a cumulative of specific time’s moons, the figure-8 analemma curve is still able to see.\u00a0 New moon days are on upper left side while full moon days are on bottom right side on the photo.\u00a0 Ground view is chosen in my Yuen Long residence estate.\u00a0 It needs around 60*40 degree space, facing east and southeast side, because I shoot moon rising at the east.<\/p>\n

( Camera: Nikon D750 with 27mm and 300mm lens, no guiding.\u00a0 Photos are taken with various exposures. )<\/p>\n

\u00a9 Copyright by Matthew Chin<\/p>\n

Epilogue:\u00a0<\/u><\/p>\n

Typhoon signal No.1 is hoisted by Hong Kong Observatory on June 11 to 12.\u00a0 Pray to the heaven, result is not good enough, but I just get it done.\u00a0 I think of Su Shi\u2019s “When is the night without moon? Where is there no bamboo and cypress?” It is pity that Hong Kong will have “When is the night without moon?”, so thing should be cherished.<\/p>\n

Chinese follows. \u4e2d\u6587\u96a8\u5f8c<\/p>\n

2014\u5e74\u62cd\u904e\u65e5\u884c\u8de1\u5f8c\u5df2\u6709\u62cd\u651d\u6708\u884c\u8de1\u7684\u5ff5\u982d\uff0c\u591a\u5e74\u5df2\u904e\u53bb\uff0c\u76f4\u5230\u4eca\u5e74\u624d\u80fd\u6210\u4e8b\u3002<\/p>\n

\u548c\u62cd\u651d\u65e5\u884c\u8de1\u4e0d\u4e00\u6a23\uff0c\u65e5\u884c\u8de1\u5728\u4e00\u5e74\u4e2d\u7684\u4e0d\u540c\u65e5\u5b50\u56fa\u5b9a\u6642\u9593\u62cd\u651d\uff0c\u800c\u6708\u4eae\u9700\u8981\u5728\u4e00\u500b\u8fb2\u66c6\u6708\u5167\u6bcf\u5929\u5ef6\u664250\u520629\u79d2 (1.035028\u65e5) \u62cd\u651d27\u5929\u624d\u53ef\u6355\u6349\u5230\u6708\u884c\u8de1\u3002\u6708\u884c\u8de18\u5b57\u7684\u5f62\u72c0\u6bcf\u6708\u6703\u6709\u5c11\u8a31\u5dee\u7570\uff0c\u5728\u5730\u7403\u4e0a\u7684\u4e0d\u540c\u570b\u5bb6\uff0c\u5411\u6771\u62cd\u6708\u6607\uff0c\u6216\u5411\u897f\u62cd\u6708\u843d\u4e5f\u6703\u6709\u5dee\u7570\u3002<\/p>\n

\u6046\u661f\u6708\u662f\u6708\u7403\u7e5e\u5730\u7403\u516c\u8f49 360\u00b0\u7684\u6642\u9593\uff0c\u70ba27.321\u5929\u30022021\/5\/26\u65e5\u662f\u6708\u5168\u98df\uff0c\u6211\u770b\u5230\u7d05\u6708\u4eae\u3002<\/p>\n

\u9999\u6e2f\u7684\u5929\u6c23\u6bd4\u8f03\u7cdf\uff0c\u4e00\u500b\u6708\u8981\u5929\u5929\u898b\u5230\u6708\u4eae\u8b8a\u5f97\u4e0d\u592a\u53ef\u80fd\uff0c(\u4e0d\u8a08\u7b97\u521d\u4e00\uff0c\u56e0\u70ba\u521d\u4e00\u6708\u4eae\u662f\u770b\u4e0d\u898b\u7684)\uff0c\u5716\u4e2d\u6709\u6708\u4eae\u7f3a\u5931\u7684\u65e5\u5b50\uff1b\u6211\u5805\u6301\u5728\u6bcf\u5929\u62cd\u651d\uff0c\u5982\u679c\u591a\u96f2\/\u6709\u96e8\uff0c\u6703\u7528\u6700\u8fd1\u6642\u9593\u62cd\u5230\u7684\u6708\u4eae\u3002<\/p>\n

\u6700\u5f8c\u5716\u7247\u5c07\u7279\u5b9a\u6642\u9593\u7684\u6708\u4eae\u53e0\u5408\u800c\u6210\uff0c8\u5b57\u6708\u884c\u8de1\u4ecd\u53ef\u4ee5\u770b\u5230\uff0c\u9760\u5728\u76f8\u7247\u5de6\u4e0a\u65b9\u662f\u65b0\u6708\u524d\u5f8c\uff0c\u53f3\u4e0b\u65b9\u662f\u6eff\u6708\u7684\u524d\u5f8c\u65e5\u5b50\u3002\u5730\u666f\u662f\u6211\u5143\u6717\u5c45\u4f4f\u7684\u5c4b\u82d1\uff0c\u5411\u6771\u53ca\u6771\u5357\u65b9\u62cd\u651d\uff0c\u9700\u8981\u6709 60*40\u5ea6\u5de6\u53f3\u7684\u7a7a\u9593\u7bc4\u570d\uff0c\u56e0\u70ba\u6211\u662f\u62cd\u6771\u6607\u7684\u6708\u4eae\u3002<\/p>\n

( \u76f8\u6a5f: \u5c3c\u5eb7 D750 \u914d\u5099 27\u6beb\u7c73\u548c 300\u6beb\u7c73\u93e1\u982d\uff0c\u7121\u5f15\u5c0e\u3002\u7167\u7247\u7528\u4e0d\u540c\u7684\u66dd\u5149\u62cd\u651d\u3002 )<\/p>\n

\u00a9 Matthew Chin \u7248\u6b0a\u6240\u6709<\/p>\n

\u5f8c\u8a18\uff1a<\/u><\/p>\n

\u516d\u670811-12\u65e5\u9999\u6e2f\u5929\u6587\u53f0\u639b\u8d77\u4e00\u865f\u98b1\u98a8\u8a0a\u865f\uff0c\u671b\u5929\u6253\u5366\u7684\u65e5\u5b50\u4e26\u4e0d\u7406\u60f3\uff0c\u4f46\u6211\u7e3d\u7b97\u5b8c\u6210\u3002\u60f3\u8d77\u8607\u8efe\u300a\u8a18\u627f\u5929\u5bfa\u591c\u904a\u300b\u300c\u4f55\u591c\u7121\u6708\uff1f\u4f55\u8655\u7121\u7af9\u67cf\uff1f\u300d\u7684\u7f8e\u666f\u7576\u524d\uff0c\u8ffd\u4e86\u4e00\u500b\u6708\u7684\u6708\u4eae\uff0c\u9999\u6e2f\u662f\u6709\u300c\u4f55\u591c\u7121\u6708\u300d\u4e4b\u5606\uff0c\u6240\u4ee5\uff0c\u4e00\u5207\u61c9\u8a72\u8981\u73cd\u60dc\u3002<\/p>\n

Reference materials \u53c3\u8003\u8cc7\u6599<\/span><\/u><\/b><\/p>\n

Time calculator:\u00a0<\/u><\/i><\/p>\n

https:\/\/www.calculator.net\/time-calculator.html<\/a><\/u><\/i><\/p>\n

\u00a0<\/i><\/p>\n

Lunar Calandar Ref:\u00a0<\/u><\/i><\/p>\n

 <\/p>\n

https:\/\/www.timeanddate.com\/moon\/phases\/hong-kong\/hong-kong?year=2024<\/a><\/u><\/i><\/p>\n

\u00a0<\/u><\/i><\/p>\n

HKO – Weather satellite imagery \u9999\u6e2f\u5929\u6587\u53f0\u6c23\u8c61\u885b\u661f\u5716\u50cf:<\/u><\/i><\/p>\n

https:\/\/www.hko.gov.hk\/tc\/wxinfo\/intersat\/satellite\/sate.htm<\/a><\/u><\/i><\/p>\n

\u00a0<\/u><\/i><\/p>\n

HKO – Overview of the latest all sky images \u9999\u6e2f\u5929\u6587\u53f0\u5168\u5929\u5f71\u50cf\u4e00\u89bd:<\/u><\/i><\/p>\n

https:\/\/www.hko.gov.hk\/tc\/gts\/astronomy\/site_all.htm<\/a><\/u><\/i><\/p>\n

\u00a0<\/u><\/i><\/p>\n

Lunar Analemma Video from Gy\u00f6rgy Soponyai in 2020:<\/u><\/i><\/p>\n

https:\/\/youtu.be\/6euyU6fxUKE<\/a><\/u><\/i><\/p>\n

\u00a0<\/u><\/i><\/p>\n

Gy\u00f6rgy Soponyai Flickr photo:\u00a0<\/u><\/i><\/p>\n

https:\/\/www.flickr.com\/photos\/vanamonde81\/49859483963\/<\/a><\/u><\/i><\/p>\n

\u00a0<\/u><\/i><\/p>\n

Lunar Analemma, from Rich Richins in 2005:<\/u><\/i><\/p>\n

http:\/\/www.enchantedskies.net\/LunarAnalemma.htm<\/a><\/u><\/i><\/p>\n

\u00a0<\/u><\/i><\/p>\n

2014\u5e74 \u9999\u6e2f\u5143\u6717\u65e5\u884c\u8de1 My Sun analemma, in Yuen Long, Hong Kong:<\/u><\/i><\/p>\n

2014\u5e74 \u9999\u6e2f\u5143\u6717\u65e5\u884c\u8de1<\/a><\/u><\/i><\/p>\n

Stellarium \u7372\u5f97\u6708\u884c\u8de1\u7684script(\u8173\u672c)<\/p>\n

\u6708\u884c\u8de1\u7684script<\/a><\/p>\n

\n

\u7db2\u7ad9\u5206\u4eab<\/u>:<\/p>\n

Earthsky:<\/p>\n

https:\/\/earthsky.org\/todays-image\/analemma-of-moon-from-hong-kong\/<\/a><\/p>\n

https:\/\/earthsky.org\/earthsky-community-photos\/entry\/40792\/<\/a><\/p>\n

Asterisk:<\/p>\n

https:\/\/asterisk.apod.com\/viewtopic.php?f=29&t=41713&p=314564#p314564<\/a><\/p>\n

SpaceWeather.com<\/p>\n

https:\/\/spaceweather.com\/archive.php?view=1&day=08&month=07&year=2021<\/a><\/p>\n

SpaceWeatherGallery<\/p>\n

https:\/\/spaceweathergallery.com\/indiv_upload.php?upload_id=176276<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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