{"id":1540,"date":"2022-05-06T21:08:44","date_gmt":"2022-05-07T01:08:44","guid":{"rendered":"http:\/\/mvas.org\/mvas_wp\/?p=1540"},"modified":"2022-05-07T16:23:38","modified_gmt":"2022-05-07T20:23:38","slug":"m5-globular-cluster-in-serpens","status":"publish","type":"post","link":"https:\/\/mvas.org\/?p=1540","title":{"rendered":"M5 \u2013 Globular Cluster in Serpens"},"content":{"rendered":"\n
\"\"<\/a>
M5 \u2013 Globular Cluster in Serpens<\/figcaption><\/figure>\n\n\n

Telescope: Unitron 1<\/span><\/span><\/span>55<\/span><\/span><\/span> 4<\/span><\/span><\/span>\u201d f\/15 <\/span><\/span><\/span>refractor, <\/span><\/span><\/span>Atlas EQ-G<\/span><\/span><\/span><\/span><\/p>\n

Camera: Canon EOS Ra <\/span><\/span><\/span><\/span>full frame DSLR<\/span><\/span><\/span><\/span><\/p>\n

Filter: 2\u201d GSO IR Cut<\/span><\/span><\/span><\/span> Filter<\/span><\/span><\/span><\/span><\/p>\n

Guide scope: <\/span><\/span><\/span>Orion 50mm Guidescope, ASI120MM, PHD, Dithered every 4 subs<\/span><\/span><\/span><\/span><\/p>\n

Exposure: <\/span><\/span><\/span>28<\/span><\/span><\/span>x<\/span><\/span><\/span>1<\/span><\/span><\/span>2<\/span><\/span><\/span>0<\/span><\/span><\/span>sec, <\/span><\/span><\/span>ISO<\/span><\/span><\/span> 8<\/span><\/span><\/span><\/span>00<\/span><\/span><\/span><\/span>, saved as <\/span><\/span><\/span>RAW<\/span><\/span><\/span><\/p>\n

Darks: Internal (Long Exposure Noise Reduction)<\/span><\/p>\n

Flats: <\/span><\/span><\/span>32×1\/<\/span><\/span><\/span><\/span>8<\/span><\/span><\/span><\/span>0s <\/span><\/span><\/span><\/span>tee shirt flats taken at dusk<\/span><\/span><\/span><\/span><\/p>\n

Average Light Pollution: Bortle 8, <\/span><\/span><\/span><\/span>poo<\/span><\/span><\/span><\/span>r<\/span><\/span><\/span><\/span> transparency, <\/span><\/span><\/span><\/span>haze<\/span><\/span><\/span><\/span><\/p>\n

Lensed Sky Quality Meter: 18.4 mag\/arc-sec^2<\/p>\n

Stacking: Mean with a 1-sigma clip<\/p>\n

White Balance: Nebulosity Automatic<\/p>\n

Software: Backyard EOS, Deepsky Stacker<\/span>, Nebulosity, Photoshop<\/span><\/p>\n

Like many globular clusters M5 is a relic of the early universe with an estimated age of 13 billion years. It is also one of the largest known globular clusters home to as many as 500,000 stars in a region 165 light years across. Its large size has been a major factor in its longevity. Globulars near the galactic plane slowly disperse as they lose stars to the Milky Way. However, M5 is so large that it has been able to hold on to most of its stars. At magnitude 5.7 M5 is an excellent target for small telescopes.<\/p>\n

M<\/span><\/span><\/span><\/span>5<\/span><\/span><\/span><\/span> currently<\/span><\/span><\/span><\/span> ris<\/span><\/span><\/span><\/span>es<\/span><\/span><\/span><\/span> in the east during the <\/span><\/span><\/span><\/span>early<\/span><\/span><\/span><\/span> evening <\/span><\/span><\/span><\/span>and is visible for most of the nigth<\/span><\/span><\/span><\/span>.<\/span><\/span><\/span><\/span><\/p>","protected":false},"excerpt":{"rendered":"

Telescope: Unitron 155 4\u201d f\/15 refractor, Atlas EQ-G Camera: Canon EOS Ra full frame DSLR Filter: 2\u201d GSO IR Cut Filter Guide scope: Orion 50mm Guidescope, ASI120MM, PHD, Dithered every 4 subs Exposure: 28x120sec, ISO 800, saved as RAW Darks: Internal (Long Exposure Noise Reduction) Flats: 32×1\/80s tee shirt flats taken at dusk Average Light […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","pgc_sgb_lightbox_settings":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[14,15],"tags":[],"class_list":["post-1540","post","type-post","status-publish","format-standard","hentry","category-forums-beginner-imaging","category-forums-deepsky-imaging","entry"],"yoast_head":"\nM5 \u2013 Globular Cluster in Serpens - Miami Valley Astronomical Society<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mvas.org\/?p=1540\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"M5 \u2013 Globular Cluster in Serpens - 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