WEBVTT 00:19.886 --> 00:26.159 align:left position:12.5%,start line:83% size:77.5% the transit of Mercury welcome stargazers I'm James Albert director the 00:26.259 --> 00:30.163 align:left position:80%,start line:83% size:10% kike Sola pop planetarium in Gainesville Florida and I'm Dean Regas astronomer 00:30.263 --> 00:33.900 align:left position:85%,start line:83% size:5% for the Cincinnati Observatory we're here to help you find your way around 00:34.000 --> 00:40.040 align:left position:82.5%,start line:83% size:7.5% the sky the astronomical event of 2016 it's happening next week and I have been 00:40.140 --> 00:44.944 align:left position:87.5%,start line:83% size:2.5% waiting years to see it it's not a planetary conjunction and it's not a 00:45.045 --> 00:49.949 align:left position:10%,start line:83% size:80% lunar or solar eclipse but it is something so rare that it only occurs 13 00:50.050 --> 00:55.188 align:left position:85%,start line:83% size:5% times every century the tiny planet Mercury will go directly between us and 00:55.288 --> 00:59.526 align:left position:85%,start line:83% size:5% the Sun will be able to see mercury completely silhouetted by the fusion 00:59.626 --> 01:05.031 align:left position:80%,start line:83% size:10% furnace that is our son it's called the transit of Mercury and we'll get you 01:05.131 --> 01:11.171 align:left position:80%,start line:83% size:10% ready to view this rare event safely on may ninth well lets show you the date is 01:11.271 --> 01:15.842 align:left position:80%,start line:83% size:10% Monday May 9 and is just before sunrise if we're going to see mercury pass in 01:15.942 --> 01:20.113 align:left position:82.5%,start line:83% size:7.5% front of the Sun that means we have to look during the daytime so we'll go 01:20.213 --> 01:22.348 align:left position:87.5%,start line:83% size:2.5% through the entire day to see what happens 01:22.449 --> 01:27.353 align:left position:82.5%,start line:83% size:7.5% first let's appreciate the sunrise not always like Dean over there really see 01:27.454 --> 01:30.256 align:left position:82.5%,start line:83% size:7.5% the beauty and grandeur of the sky at this time of day 01:30.356 --> 01:35.762 align:left position:82.5%,start line:83% size:7.5% definitely beautiful the sunrise North East move up and to the right 01:35.862 --> 01:39.466 align:left position:87.5%,start line:83% size:2.5% cuts slowly and surely across the southern sky and then set in the 01:39.566 --> 01:41.134 align:left position:37.5%,start line:89% size:52.5% northwest 01:41.234 --> 01:45.405 align:left position:80%,start line:83% size:10% did you notice anything I sure didn't I thought this transit of Mercury was some 01:45.505 --> 01:48.441 align:left position:80%,start line:83% size:10% awesome event I didn't see anything out of the ordinary 01:48.541 --> 01:52.812 align:left position:80%,start line:83% size:10% that's because the transit of Mercury is a sub alignment that takes us skillful 01:52.912 --> 01:58.451 align:left position:80%,start line:83% size:10% savvy observer to witness and one needs access to some extra equipment Maria 01:58.551 --> 02:02.689 align:left position:82.5%,start line:83% size:7.5% small after all and staring at the Sun too long will strike you blind 02:02.789 --> 02:07.293 align:left position:85%,start line:83% size:5% first safe solar filter one that is approved by astronomers to look at the 02:07.393 --> 02:14.334 align:left position:80%,start line:83% size:10% Sun do not use sun glasses for CDs film negatives mylar X-rays or any homemade 02:14.434 --> 02:19.139 align:left position:87.5%,start line:83% size:2.5% filter they will not protect solar eclipse glasses and number fourteen 02:19.239 --> 02:22.809 align:left position:82.5%,start line:83% size:7.5% welder's glass would protect you from the Sun but you'll need more than that 02:22.909 --> 02:31.251 align:left position:82.5%,start line:83% size:7.5% to see mercury on that day you'll need is so small compared to the Sun that you 02:31.351 --> 02:33.386 align:left position:85%,start line:83% size:5% will not be able to see it with the naked eye 02:33.486 --> 02:37.924 align:left position:82.5%,start line:83% size:7.5% that means you need to put say filters on binoculars and telescopes just to see 02:38.024 --> 02:39.526 align:left position:47.5%,start line:89% size:42.5% it 02:39.626 --> 02:42.495 align:left position:82.5%,start line:83% size:7.5% good filters go in front of the lenses or mirrors and block out the light 02:42.595 --> 02:47.033 align:left position:87.5%,start line:83% size:2.5% before entering the telescope once you're properly outfitted tears of the 02:47.133 --> 02:53.173 align:left position:80%,start line:83% size:10% Sun will look like with a zoomed in view your first see mercury 7:13 a.m. Eastern 02:53.273 --> 02:57.977 align:left position:85%,start line:83% size:5% Daylight Time as a little black spot growing along the edge of the Sun at 02:58.077 --> 03:03.383 align:left position:87.5%,start line:83% size:2.5% 7:16 worker will appear completely inside the Sun's disk to paraphrase a 03:03.483 --> 03:09.923 align:left position:82.5%,start line:83% size:7.5% certain song they'll be a little black spot on the sonne this may indeed then 03:10.023 --> 03:13.993 align:left position:80%,start line:83% size:10% you can watch mercury slowly continue in its orbit around the Sun and passed 03:14.093 --> 03:19.232 align:left position:80%,start line:83% size:10% directly in front of it minute by minute hour by hour at 10:30 a.m. it will be 03:19.332 --> 03:24.971 align:left position:80%,start line:83% size:10% about halfway through then at 2:38 p.m. mercury starts heading off the Sun and 03:25.071 --> 03:26.606 align:left position:25%,start line:89% size:65% three minutes later 03:26.706 --> 03:31.010 align:left position:85%,start line:83% size:5% mercury is invisible once more so a transit of Mercury can last over seven 03:31.110 --> 03:35.615 align:left position:82.5%,start line:83% size:7.5% hours with the most exciting parts at the beginning and the end 03:35.715 --> 03:39.786 align:left position:82.5%,start line:83% size:7.5% if you don't have a safe solar filter and a telescope contact your local 03:39.886 --> 03:44.557 align:left position:82.5%,start line:83% size:7.5% astronomy club or planetarium chances are they'll be doing this rare event and 03:44.657 --> 03:49.062 align:left position:87.5%,start line:83% size:2.5% welcome guests astronomers whether amateur or professional love sharing the 03:49.162 --> 03:53.533 align:left position:87.5%,start line:83% size:2.5% heavens with others so see if your community is planning a transit of 03:53.633 --> 03:58.471 align:left position:87.5%,start line:83% size:2.5% Mercury party on May night finally noticed that the transit last from 7:13 03:58.571 --> 04:04.677 align:left position:80%,start line:83% size:10% a.m. to 2:41 p.m. Eastern Daylight Time please adjust your time accordingly 04:04.777 --> 04:08.081 align:left position:80%,start line:83% size:10% that means that people on the west coast will not see the beginning of the 04:08.181 --> 04:13.286 align:left position:82.5%,start line:83% size:7.5% transit the Sun will not have risen at that time but they're not you'll still 04:13.386 --> 04:17.991 align:left position:80%,start line:83% size:10% see hours of a performer creed two parts the Sun's disk stargazers on the east 04:18.091 --> 04:21.127 align:left position:10%,start line:83% size:80% coast will see the entire thing including my brother Chris whose 04:21.227 --> 04:27.267 align:left position:82.5%,start line:83% size:7.5% birthday is may not have waited to see this since November 8 2006 that was the 04:27.367 --> 04:32.238 align:left position:87.5%,start line:83% size:2.5% last transit of Mercury and I got clouded out and if you miss this one 04:32.338 --> 04:36.909 align:left position:85%,start line:83% size:5% the next transit of Mercury won't be until November 11th 2019 in other words 04:37.010 --> 04:41.010 align:left position:10%,start line:89% size:80% I may not be better keep looking