\u5fae\u5f31\u4fe1\u53f7\u3092\u6e2c\u5b9a\u3059\u308b\u3068\u304d\u306b\u91cd\u8981\u306a\u306e\u306f\u30ce\u30a4\u30ba\uff08\u96d1\u97f3\uff09\u306e\u4f4e\u6e1b\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u5929\u4f53\u5199\u771f\u64ae\u5f71\u3092\u90fd\u5e02\u3067\u884c\u304a\u3046\u3068\u3059\u308b\u3068\u300c\u5149\u5bb3\u300d\u306b\u3088\u3063\u3066\u6697\u3044\u661f\u304c\u898b\u3048\u307e\u305b\u3093\u304c\u3001\u96d1\u97f3\u306e\u5c11\u306a\u3044\u300c\u51b7\u5374CCD\u30ab\u30e1\u30e9\u300d\u3092\u4f7f\u3063\u3066\u7a4d\u7b97\u3057\u3001\u5e73\u5747\u5024\u3092\u5dee\u3057\u5f15\u304f\u3053\u3068\u306b\u3088\u3063\u3066\u7a7a\u306e\u4e00\u69d8\u306a\u660e\u308b\u3055\u3092\u6d88\u53bb\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30ce\u30a4\u30ba\u304c\u3042\u308b\u3068\u80cc\u666f\u304c\u30b6\u30e9\u30b6\u30e9\u3057\u3066\u3057\u307e\u3063\u3066\u4e00\u69d8\u306a\u5f15\u304d\u7b97\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u4ee5\u524d\u3001\u663c\u9593\u306b\u6570\u6642\u9593\u8ffd\u8de1\u9732\u5149\u3057\u3066\u661f\u304c\u898b\u3048\u308b\u30c7\u30e2\u304c\u3042\u3063\u305f\u306e\u3067\u3059\u304c\u4eca\u65e5\u306f\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u4e0b\u8a18\u306f\u82f1\u56fdBBC\u95a2\u9023\u306e\u30a2\u30de\u30c1\u30e5\u30a2\u5929\u6587\u5bb6\u5411\u3051\u306e\u30b5\u30a4\u30c8\u306b\u3042\u308b\u89e3\u8aac\u3067\u3059\u3002
\nhttps:\/\/www.skyatnightmagazine.com\/astrophotography\/astrophoto-tips\/how-capture-astrophotos-light-polluted-city\/
\n\u51b7\u5374CCD\u30ab\u30e1\u30e9\u306f\u3001\u30e9\u30de\u30f3\u5206\u5149\u306e\u691c\u51fa\u5668\u306b\u4f7f\u3046\u3088\u3046\u306a\uff08\u5b87\u5b99\u7dda\u306b\u3082\u611f\u5ea6\u304c\u3042\u308b\uff09\u4ed5\u69d8\u3067\u3059\u3068\u4e0b\u8a18\u30ab\u30bf\u30ed\u30b0Newton 920\u306e\u3088\u3046\u306b\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30ec\u30f3\u30b894dB\u304f\u3089\u3044\u3042\u308a\u307e\u3059\u3002 (dynamic range = \u6e2c\u5b9a\u53ef\u80fd\u306a\u4e00\u756a\u5f31\u3044\u4fe1\u53f7\u3068\u4e00\u756a\u5f37\u3044\u4fe1\u53f7\u306e\u6bd4\u304c51000\u3067\u3001log10(51000)\u00f720\uff1d94\u3002\u30c7\u30b7\u30d9\u30eb\u306f\u6bd4\u306elog10\u3092\u3068\u3063\u306610\u304b20\u3067\u5272\u308b\u3002\u632f\u5e45\u306e\u6642\u306f10\u3001\u5f37\u5ea6\u306e\u6642\u306f20)\u3000\u3053\u306e\u4ed5\u69d8\u3060\u3068\u5024\u6bb5\u306f200\u4e07\u5186\uff5e\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002
\nhttps:\/\/andor.oxinst.com\/learning\/view\/article\/dynamic-range-and-full-well-capacity
\n\u51b7\u5374CCD\u306f\u3001\u6db2\u4f53\u7a92\u7d20\u3092\u5165\u308c\u308b\u3082\u306e\u3084\u30da\u30eb\u30c1\u30a8\u7d20\u5b50\u3067-30\u2103\u7a0b\u5ea6\u306b\u4e0b\u3052\u308b\u3082\u306e\u306a\u3069\u3044\u308d\u3044\u308d\u306a\u30b0\u30ec\u30fc\u30c9\u304c\u3042\u308a\u307e\u3059\u3002\u691c\u51fa\u5668\u304c\u30b7\u30ea\u30b3\u30f3\u30d5\u30a9\u30c8\u30c0\u30a4\u30aa\u30fc\u30c9\u3060\u3068\u3059\u308b\u3068\u3001\u30d0\u30f3\u30c9\u30ae\u30e3\u30c3\u30d7Ea=1.1eV\u3092\u8d85\u3048\u3066\u71b1\u52b1\u8d77\u3055\u308c\u308b\u30ad\u30e3\u30ea\u30a2\u306e\u6570\u306fexp(-Ea\/kBT)\u3067T=20\u2103\uff08298K\uff09\u3068T=-30\u2103(248)\u306e\u6bd4\u3092\u3068\u308b\u3068exp(-11000\/298)\/exp(-11000\/248)=1700 \u3068\u306a\u308a\u3001\u30d0\u30f3\u30c9\u30ae\u30e3\u30c3\u30d7\u52b1\u8d77\u7531\u6765\u306e\u6697\u96fb\u6d41\uff08\u96d1\u97f3\uff09\u304c1700\u5206\u306e\uff11\u306b\u6e1b\u308a\u307e\u3059(1eV\/kB\u225210000K\u3092\u4f7f\u3063\u305f)\u300277K\u306b\u3059\u308b\u3068\u3001\u6570\u5341\u6841\u306e\u6e1b\u5c11\u306b\u306a\u308a\u307e\u3059\u3002\u30c9\u30fc\u30d1\u30f3\u30c8\u6df1\u3055\u306fEa=20meV\u304f\u3089\u3044\u306a\u306e\u3067\u3001-30\u2103\u3067\u306f\u3042\u307e\u308a\u5f71\u97ff\u306f\u306a\u3044\u3067\u3059\u3002\u51b7\u5374CCD\u306f\u5b89\u3044\u666e\u901a\u306e\u30ab\u30e1\u30e9\u30e6\u30cb\u30c3\u30c8\u3092\u4f7f\u3063\u3066\u81ea\u4f5c\u3082\u3067\u304d\u307e\u3059\u304c\u3001\u971c\u304c\u6765\u306a\u3044\u3088\u3046\u306b\u6c17\u5bc6\u306b\u3057\u306a\u304c\u3089\u65ad\u71b1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u53cd\u5c04\u306a\u3069\u5149\u5b66\u7684\u306a\u914d\u616e\u3082\u5fc5\u8981\u3067\u3084\u3084\u9762\u5012\u3067\u3059\u3002<\/p>\n
\u5929\u4f53\u5199\u771f\u3000astrography, astrograph, astrophotograph(y) y\u3092\u3064\u3051\u308b\u3068\u300c\u5199\u771f\u8853\u300d
\n\u5149\u5bb3\u3000\u300c\u3053\u3046\u304c\u3044\u300d\u3068\u8aad\u3080\u4eba\u304c\u591a\u3044\u3068\u601d\u3044\u307e\u3059\u3000light pollution
\n\u96d1\u97f3\u3000noise
\n\u6d88\u53bb\u3059\u308b\u3000eliminate \u30a8\u300c\u308a\u300d\u30df\u30cd\u30a4\u30c8
\n\u80cc\u666f\u3000background
\n\u30b6\u30e9\u30b6\u30e9\u3059\u308b\u3000noisy, rough\u3000\u30e9\u30d5, coarse \u30b3\u30fc\u30b9\uff1d\u7c97\u3044, gritty\u3000\u30b0\u30ea\u30c3\u30c6\u30a3\uff1d\u7802\u306e\u5165\u3063\u305f, sandy, granular\u30b0\u300c\u30e9\u300d\u30cb\u30e5\u3089\uff1d\u7c92\u72b6\u306e
\n\u8ffd\u8de1\u9732\u5149\u3000tracking exposure
\n\u71b1\u52b1\u8d77\u3055\u308c\u308b\u3000thermally excited
\n\u971c\u3000frost
\n\u6c17\u5bc6\u3000air-tight \u30a8\u30a2\u3000\u30bf\u30a4\u30c8
\n\u65ad\u71b1\u3000thermal insulation
\n\u5149\u5b66\u7684\u306a\u914d\u616e consider optical issues
\n\u3084\u3084\u9762\u5012\u3067\u3059\u3000needs efforts \u304f\u3089\u3044\u304b\uff1f
\n\u8a33\u4f8b\uff08\u300c\u3066\u306b\u304a\u306f\u300d\u306f\u304a\u304b\u3057\u3044\u3068\u601d\u3044\u307e\u3059\u304c\u3001\u304e\u308a\u304e\u308a\u901a\u3058\u308b\u4f8b\u3068\u3057\u3066\uff09\uff1a\u3000You can make cooled CCD from a cheep camera unit, but you probably need some efforts because it is required to make it air-tight with thermal insulation to prevent frosting, and you must consider optical issues such as reflection.<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5fae\u5f31\u4fe1\u53f7\u3092\u6e2c\u5b9a\u3059\u308b\u3068\u304d\u306b\u91cd\u8981\u306a\u306e\u306f\u30ce\u30a4\u30ba\uff08\u96d1\u97f3\uff09\u306e\u4f4e\u6e1b\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u5929\u4f53\u5199\u771f\u64ae\u5f71\u3092\u90fd\u5e02\u3067\u884c\u304a\u3046\u3068\u3059\u308b\u3068\u300c\u5149\u5bb3\u300d\u306b\u3088\u3063\u3066\u6697\u3044\u661f\u304c\u898b\u3048\u307e\u305b\u3093\u304c\u3001\u96d1\u97f3\u306e\u5c11\u306a\u3044\u300c\u51b7\u5374CCD\u30ab\u30e1\u30e9\u300d\u3092\u4f7f\u3063\u3066\u7a4d\u7b97\u3057\u3001\u5e73\u5747\u5024\u3092\u5dee\u3057\u5f15\u304f\u3053\u3068\u306b\u3088\u3063\u3066\u7a7a\u306e\u4e00\u69d8\u306a\u660e\u308b\u3055\u3092\u6d88\u53bb\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30ce\u30a4\u30ba\u304c\u3042\u308b\u3068\u80cc\u666f\u304c\u30b6\u30e9\u30b6\u30e9\u3057\u3066\u3057\u307e\u3063\u3066\u4e00\u69d8\u306a\u5f15\u304d\u7b97\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u4ee5\u524d\u3001\u663c\u9593\u306b\u6570\u6642\u9593\u8ffd\u8de1\u9732\u5149\u3057\u3066\u661f\u304c\u898b\u3048\u308b\u30c7\u30e2\u304c\u3042\u3063\u305f\u306e\u3067\u3059\u304c\u4eca\u65e5\u306f\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u4e0b\u8a18\u306f\u82f1\u56fdBBC\u95a2\u9023\u306e\u30a2\u30de\u30c1\u30e5\u30a2\u5929\u6587\u5bb6\u5411\u3051\u306e\u30b5\u30a4\u30c8\u306b\u3042\u308b\u89e3\u8aac\u3067\u3059\u3002 https:\/\/www.skyatnightmagazine.com\/astrophotography\/astropho…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[48,42],"tags":[11,5],"class_list":["post-1370","post","type-post","status-publish","format-standard","hentry","category-spaceandearth","category-tech","tag-spaceandearth","tag-tech"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts\/1370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1370"}],"version-history":[{"count":0,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts\/1370\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}