Science Project: The

UniverseBy Brandon Large 10M

Topic: The Supernova!

What is a Supernova???

• A supernova (pl. supernovae) is a stellar explosion which produces an extremely bright object made of plasma that declines to invisibility over weeks or months. It would take 10 billion years for the Sun to produce the energy output of an ordinary Type II supernova. The Sun is notably too small to ever become a supernova—rather it will become a White Dwarf. There are several different types of supernovae and two possible routes to their formation.

When was Supernova first discovered???

• The earliest recorded supernova, SN 185, was viewed by Chinese astronomers in 185 AD.

Who was the first to observe a Supernova???

On 11 November 1572, the fist to observe of a supernova was seen by a wealthy, Danish noble man, Tycho Brahe. Appearing in the constellation Cassiopeia. Brahe believed it was a new star because of its relative brightness and its neighbouring stars in the night sky, however it was the explosive death of a star.

Naming Convention.

Supernova discoveries are reported to the International Astronomical Union's Central Bureau for Astronomical Telegrams, which sends out a circular with the name it assigns to it. The name is the year of discovery, immediately followed by a one or two-letter designation. The first 26 supernovae of the year are designated with a capital letter from A to Z. Afterward pairs of lower-case letters are used: aa, ab, and so on. Professional and amateur astronomers find several hundreds of supernovae each year. For example, the last supernova of 2005 was SN 2005nc, indicating that it was the 367th supernova found in 2005.

When a Supernova takes place???

The Supernova takes place within the life cycle of a star.

What types of Supernovae are there???

As part of the attempt to understand supernovae, astronomers have classified them according to the absorption lines of different chemical elements that appear in their spectra.

Type Ia: Lacks hydrogen and presents a singly ionized silicon (Si II) line at 615.0 nm (nanometers), near peak light.

Type Ib: Non-ionized helium (He I) line at 587.6 nm and no strong silicon absorption feature near 615 nm.

Type Ic: Weak or no helium lines and no strong silicon absorption feature near 615 nm.

For Example: How does Type Ia work???

How does it work???

Summary...

Watch small video...

Don’t forget to answers your questions on your sheet about the video too...

THANKYOU FOR YOUR TIME!

Bibliography...http://en.wikipedia.org/wiki/Supernovahttp://www.youtube.com/watch?v=WVX_M0QCXzchttp://www.youtube.com/watch?v=NWTYOaV4JmEhttp://www.youtube.com/watch?v=q5lcKLUvLzQhttp://wiki.answers.com/Q/What_is_a_supernovahttp://imagine.gsfc.nasa.gov/docs/science/know_l2/supernovae.htmlhttp://

www.nmm.ac.uk/explore/astronomy-and-time/astronomy-facts/stars/supernovaehttp://www.universetoday.com/guide-to-space/stars/what-is-a-supernova/http://

www.google.com.au/images?hl=en&q=supernova&um=1&ie=UTF-8&source=og&sa=N&tab=wi

http://www.google.com.au/#hl=en&source=hp&q=supernova&aq=f&aqi=g10&aql=&oq=&gs_rfai=&

fp=7247762ab6c6c056http://www.youtube.com/results?search_query=what+is+a+supernova&aq=fhttp://www.supernovae.net/snimages/snlinks.html