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Learning Goals: I will:

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Presentation transcript:

Learning Goals: I will: 4. Complex Knowledge: demonstrations of learning that go aboveand above and beyond what was explicitly taught. 3. Knowledge: meeting the learning goals and expectations. 2. Foundational knowledge: simpler procedures, isolated details, vocabulary. 1. Limited knowledge: know very little details but working toward a higher level. I will: understand the properties of different types of galaxies. understand how the universe came to be what we observe today. understand how astronomers use astronomical objects (standard candles) as a distance ladder to estimate the size of the universe and to measure large distances in the universe. understand how astronomers determine the age and size of the universe?. https://www.galaxyzoo.org/

Types of Galaxies! Review from yesterday

Your goal for today. Just try to wrap your head around this…..

Hubble Deep Field “The Most Important Picture Ever Taken” https://www.youtube.com/watch?v=acOrkvsZMUI

https://www.youtube.com/watch?v=5c3xuYs75IU

Another Hubble Deep Field? And Another? https://www.youtube.com/watch?v=d8jxzefJIls

Chandra Deep Field South X-Ray Version This sequence of images begins with a large optical image of the southern sky. The view zooms into the 4-million-second exposure of the Chandra Deep Field South, and then an optical and infrared image from the Hubble Space Telescope is overlaid. This provides evidence that growing black holes have been detected in 30% to 100% of the distant galaxies. Chandra Deep Field South X-Ray Version This patch of sky lies in the Fornax constellation. observations taken between 2000 and 2010 have resulted in a total of exposure of over four million seconds https://www.youtube.com/watch?v=Rf tKOe-5Yj0

How the Hubble Deep Field (HDF) was taken https://www.youtube.com/watch?v=3BMAKHPojEk

http://www.spacetelescope.org/images/heic0406a/ A full size image is 110 mb

Hubble Deep Field (1995): One 24-millionth of the whole sky Approximately 10 days worth of exposure time (Dec 18-Dec 28) Assembled from 342 separate photos Found about 3000 galaxies in a patch of sky where NOTHING was seen before

Hubble Deep Field South (1998) To provide observatories in the southern hemisphere a region to study In the constellation Tucana (Toucan) Over 10 days worth of exposure time Larger field of view than original

Hubble Ultra Deep Field (2004): One 13-millionth of the whole sky bigger than the original A few months worth of data (9/24/03 – 1\16\04) Over 800 exposures Contains an estimated 10,000 galaxies Looks back over 13 billion years

Extreme Deep Field(2012): Combining 10 years of photos Approximately 23 days of exposure time A zoomed in version of the Ultra Deep Field Adding about 5,500 more galaxies About 80% the size of the Ultra Deep Field

Adds in infra-red! Hubble Ultra Deep Field (2014): One 13-millionth of the whole sky bigger than the original A few months worth of data (9/24/03 – 1\16\04) Over 800 exposures Contains an estimated 10,000 galaxies Looks back over 13 billion years Adds in infra-red!

2014 (w/infrared) 2004

Hubble Deep Field star elliptical spiral Irregular Blue White Yellow Red

Answer Now! Did you find any patterns or correlation between color and type? What do you think this means? What was the most difficult part of doing this? Why? How many total stars do you think are in the picture you just analyzed?