{"id":135,"date":"2014-10-02T12:33:53","date_gmt":"2014-10-02T18:33:53","guid":{"rendered":"http:\/\/13thstone.com\/blog\/?p=135"},"modified":"2014-10-02T12:33:53","modified_gmt":"2014-10-02T18:33:53","slug":"say-what-again","status":"publish","type":"post","link":"https:\/\/13thstone.com\/blog\/?p=135","title":{"rendered":"Say “what” again!"},"content":{"rendered":"

So the vignetting on the EON persists through the new imaging train. It’s just an overall bad combo with a full frame DSLR, but this is how we learn. I wanted to take a step back and get some good widefield data to lick my wounds before diving back into the prime focus challenges, so I went back to the side-by-side saddle and native EF mount to the 600mm f\/4L IS for yesterday’s imaging session.\u00a0The moon is waxing gibbous today at about 56% and growing fast, so when the weather broke yesterday afternoon, I knew I had to take advantage of the night. I headed up to the dark site in Huntsville (~52 miles one way for me) around 6:30pm and started setting up my gear. By the time my buddy, Dave, arrived at 8, I was polar aligned and ready for the stars to start popping out. I started with Andromeda\u00a0(which I’ll process and share later tonight) and ended with the Seven Sisters. I wanted to image the Great Orion Nebula, but my camera battery AND my DC power pack driving my equatorial mount and dew heaters both were depleting quickly, so I didn’t make Orion’s rise before having to pack up. It was disappointing, but it did spur me to order a AC to DC adapter for all three equipment power points to arrive before the weekend should be fortunate enough to get another clear night. What a silly reason to end a gorgeous imaging night early!\u00a0<\/span><\/p>\n

My previous post shared the disappointing, noisy, and light lost attempt at M45 through my 130mm f\/7 triplet. This is the do-over.\u00a0<\/span><\/p>\n

Messier 45 – more commonly known as Pleiades – is only about 444 light years from us… only. It is quite bright and clearly visible to the naked eye without any form of telescope or binoculars on a clear night. In Japanese, the star cluster is called Subaru… and happens to be the logo for the automotive manufacturer bearing it’s namesake.<\/span><\/p>\n

\"Messier<\/a>
<\/span> Messier 45 – Pleiades<\/span><\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

So the vignetting on the EON persists through the new imaging train. It’s just an overall bad combo with a full frame DSLR, but this is how we learn. I wanted to take a step back and get some good widefield data to lick my wounds before diving back into the prime focus challenges, so … Continue reading Say “what” again!<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-135","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4P0Vj-2b","_links":{"self":[{"href":"https:\/\/13thstone.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/135","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/13thstone.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/13thstone.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/13thstone.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/13thstone.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=135"}],"version-history":[{"count":1,"href":"https:\/\/13thstone.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/135\/revisions"}],"predecessor-version":[{"id":137,"href":"https:\/\/13thstone.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/135\/revisions\/137"}],"wp:attachment":[{"href":"https:\/\/13thstone.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=135"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/13thstone.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=135"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/13thstone.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=135"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}