OBJECTIVE:  I will be able to sketch the lifecycles of all 3 of our specific types of stars during today's class AND determine the likelihood for life on planets around those stars.

WORD FOR TODAY:

• solar nebula
• fusion
• nucleosynthesis
• Strong Force
• main sequence
• Blue Giant Stars
• Red Dwarf Stars
• Yellow Stars
• White Dwarf Stars
• Black Dwarfs
• Brown Dwarfs
• Black Holes
• Neutron Stars
• Main Sequence

CALENDAR:  STARS unit test on Thursday, October 31st (BOO!)

WORK O' THE DAY: 

How are your OUAP projects coming along? Turn 'em in if you got 'em!

Let's take a look at our Fine Arts Projects from last week (I have copies). Which object is represented by each project? Notice that those are numbered-- Please write the number down and (without talking to your team quite yet) write the type of object.

Then Talk!

Questions? Curiosities?

Recall our diagram for life cycles of stars generally:

There is a process on that chart we haven't talked about (yet!). What is it and how do you suppose it works? Please discuss!

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Here's a BRIEF recap of what we've learned about stars so far

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Now let's have a bit of fun with our topic....

Let's say that you were in charge of an expedition to settle human beings on a nearby planet.

Here are the requirements/initial conditions:

1) NASA has advanced space travel to the point where it will only takes 20 years to travel a distance of 5 light years.

2) Due to the vast expense of the project, you can only send ONE expedition

3) There are two star/system candidates:

A) A planet circling the red dwarf star which is part of the alpha centauri trinary (3 suns) system.

• The star is about 4.3 light years away
• The star is part of a 3 star system
• The star is a red dwarf star
• The star is about .12 the mass of our sun
• The star is about 12 x the mass of jupiter

B) A planet circling Sirius A which is a type A star 8 light years away.

• The star is about 8 light years away
• The star is part of a 2 body system (Sirius A and Sirius B)
• Sirius A is a type A star
• Sirius B is a white dwarf

 

Make a t - chart and list the pro's and cons of establishing an Earth colony on a planet orbiting each of those stars... Please emphasize the characteristics of the local space 'environment' using the knowledge you've learned of stars during the last couple of weeks.

let's discuss.