{"id":600,"date":"2026-11-12T21:39:17","date_gmt":"2026-11-12T20:39:17","guid":{"rendered":"https:\/\/martin-in.space\/?p=600"},"modified":"2026-11-12T21:39:17","modified_gmt":"2026-11-12T20:39:17","slug":"ldn-673","status":"publish","type":"post","link":"https:\/\/martin-in.space\/index.php\/2026\/11\/12\/ldn-673\/","title":{"rendered":"LDN 673"},"content":{"rendered":"\n

LDN 673 je tmav\u00e1 hmlovina v s\u00fahvezd\u00ed Orla (Aquila), ktor\u00e1 patr\u00ed do komplexu tmav\u00fdch oblakov Aquila Rift (Serpens\u2013Aquila Rift) a tvor\u00ed jeho koniec na strane vy\u0161\u0161ej galaktickej d\u013a\u017eky. Vzdialenos\u0165 sa dlho odhadovala len pribli\u017ene \u2013 star\u0161ie pr\u00e1ce uv\u00e1dzali okolo 200 pc (asi 650 sveteln\u00fdch rokov), no merania dru\u017eice Gaia (DR2) uk\u00e1zali 407 \u00b1 16 pc, teda pribli\u017ene 1 330 sveteln\u00fdch rokov od Zeme.<\/p>\n\n\n\n

Do katal\u00f3gu ju zaradila americk\u00e1 astron\u00f3mka Beverly T. Lynds, ktor\u00e1 v roku 1962 publikovala v \u010dasopise The Astrophysical Journal Supplement Series svoj Catalogue of Dark Nebulae. Katal\u00f3g zostavila vizu\u00e1lnym preh\u013ead\u00e1van\u00edm \u010derven\u00fdch a modr\u00fdch sn\u00edmok z prehliadky oblohy National Geographic Society \u2013 Palomar Observatory Sky Survey a obsahuje objekty LDN 1 a\u017e 1802 \u2013 odtia\u013e aj ozna\u010denie LDN (Lynds\u2019 Dark Nebula).<\/p>\n\n\n\n

LDN 673 je ve\u013emi hust\u00fd a silne roztrie\u0161ten\u00fd oblak plynu a prachu, v ktorom sa rodia nov\u00e9 hviezdy. V roku 2017 v \u0148om t\u00edm Travisa Rectora z University of Alaska Anchorage objavil dvan\u00e1s\u0165 Herbig-Haro objektov \u2013 mal\u00fdch \u0161kv\u0155n hmloviny, ktor\u00e9 vznikaj\u00fa pri v\u00fdtryskoch hmoty z pr\u00e1ve sa rodiacich hviezd. Pou\u017eili sn\u00edmky z kamery MOSAIC na 4-metrovom \u010falekoh\u013eade Mayall na Kitt Peak vo filtroch B, V, I a H\u03b1 a ich povahu potvrdili sledovan\u00edm v \u010diare [S II]. V oblasti sa nach\u00e1dza aj mlad\u00e1 viacn\u00e1sobn\u00e1 hviezda typu T Tauri AS 353, s ktorou je pravdepodobne spojen\u00e1 \u010das\u0165 t\u00fdchto objektov.<\/p>\n\n\n\n

Fotografoval som ju po\u010das \u0161tyroch noc\u00ed v auguste 2024 s celkov\u00fdm integra\u010dn\u00fdm \u010dasom 12 h 15 min (147 \u00d7 300\u2033). Pou\u017eil som teleskop Sky-Watcher Quattro 150P s korektorom k\u00f3my 0,86\u00d7 a kameru ZWO ASI533MC Pro na mont\u00e1\u017ei Sky-Watcher HEQ5 Pro s filtrom Optolong L-Pro, riaden\u00e9 cez ZWO ASIAIR Plus. Spracovanie prebehlo v PixInsighte.<\/p>\n\n\n\n

\"\"
LDN 673<\/figcaption><\/figure>\n\n\n\n

Viac info: https:\/\/app.astrobin.com\/i\/jt90cs<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

LDN 673 je tmav\u00e1 hmlovina v s\u00fahvezd\u00ed Orla (Aquila), ktor\u00e1 patr\u00ed do komplexu tmav\u00fdch oblakov Aquila Rift (Serpens\u2013Aquila Rift) a tvor\u00ed jeho koniec na strane vy\u0161\u0161ej galaktickej d\u013a\u017eky. Vzdialenos\u0165 sa…<\/p>\n","protected":false},"author":1,"featured_media":601,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[10,14],"tags":[21,132,133],"class_list":["post-600","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astrofoto","category-hmloviny","tag-astrofoto","tag-ldn-673","tag-temne-hmloviny"],"_links":{"self":[{"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/posts\/600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/comments?post=600"}],"version-history":[{"count":1,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/posts\/600\/revisions"}],"predecessor-version":[{"id":602,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/posts\/600\/revisions\/602"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/media\/601"}],"wp:attachment":[{"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/media?parent=600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/categories?post=600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/martin-in.space\/index.php\/wp-json\/wp\/v2\/tags?post=600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}