Astronomy

Welcome the Bellaire High School Astronomy site. Here you will find resources, and information related to astronomy at Bellaire High School.

You can check out the presentation for the Bellaire Nature Discovery Center on 12-02-09.

The astronomy course will cover the essential history of humankind's effort to understand the universe from the earliest days to the modern scientific efforts. Students will learn about observational astronomy, planetary science and the solar system, stellar evolution and the life-cycles of stars, galactic evolution and modern cosmology concepts, as well as participate in labs and in-the-field experiences.

SkyandTelescope.com – News Blog – The Big Dipper Adds a Star.

One my favorite targets for me and for star parties is the optical pair Alcor & Mizar and Mizar is also a binary system itself which is apparent through pretty much any telescope.

Alcor and Mizar

In reality each of the stars in the Mizar pair is a binary making the whole telescopic view a total of 6 stars when you include the star that also shows up in the field-of-view.

Alcor a & b

Recently astronomers at the Palomar observatory were looking for extra-solar planets using near-infrared techniques and discovered that Alcor also is a binary system! That makes a total of 7 stars when you look at that one spot in the Big Dipper. Read more over at SkyandTelescope.com

Awesome Mars Express view of Phobos and Deimos together – The Planetary Society Blog | The Planetary Society.

Phobos & Deimos

When someone becomes interested in astronomy those of us that are more experienced generally have some advice:

1) Don’t buy too little or too much telescope meaning make sure you get a good quality but get something you will actually use and you don’t have to break the bank!

2) Find a local club to join where you can learn and ask questions and be a part of a community of other astronomy enthusiasts.

But what it means to be a part of an astronomy community has been transformed by social networks, blogs, virtual observatories, and a the rapid way that information is spread online.

Social networking seems to be changing lots of things about the way people communicate and access information. Astronomy is no different. In fact it seems social networking sites such as Twitter and Facebook have had a big impact on the way amateurs connect with one another. Face-to-face clubs aren’t going away, but the experience of being a part of a community of people with a common interest can also happen online.

Twitter – the 140 character limit requirement makes astronomy tweets short and sweet. Here are a few ways that Twitter is changing amateur astronomy:

• Instant access to professional and amateurs from everywhere
• New community of astronomers with a different dynamic
• Information is disseminated rapidly about astro events and news

140 characters at a time

Facebook – you can connect with millions of like-minded astronomy fans, coordinate groups and events, and even post photo albums using Facebook. Here are a few ways Facebook is changing amateur astronomy:

• Networking with astronomers of all stripes
• Can be used by individuals and clubs for communication and event coordination
• Can post images & links

Facebook can manage events

Connect with millions of astronomy peeps

Blogs – If you take a look at the blog roll on this site you can see just a sampling of the kinds of astronomy blogs that are out there. From professional astronomers and science writers and space agencies, to astronomy educators, to observation logs, to astronomy news, to podcasts you can really see the wide variety and quality of astronomy material available in blog form.

• As a reader you can get ALL the news out there for all astronomy topics sooner than the print stuff
• Many publications are using blogs and other online content to entice readers or reward subscribers
• As a blogger you can help spread news and contribute yourself and be a part of astronomy blogging community

Forums- When you are looking for help with astronomy equipment or astrophotography or need reviews and advice on what to buy or sell or if you want to exchange ideas with other astronomers you can probably find a forum.

• CloudyNights.com is the best place to get reviews and ask questions about equipment as well as to find a thriving marketplace for used stuff.
• UnmannedSpaceFlight.com is a serious place for the armchair astronaut. You can keep up with the latest on robotic spacecraft or rovers and share in the excitement as new images are plucked from obscure web servers and open for discussion.

Virtual Observatories – anyone can access professional-quality equipment and access real research data with these tools.

• Galaxy Zoo lets anyone be a part of the science using robotically collected data. Users categorize galaxies and mergers better than any software.
• Tzec Maun Foundation is non-profit group that gives access to telescopes and clear dark skies for education and research purposes.

Tips for Viewing the Geminid Meteor Shower | Universe Today

Here are some tips for viewing the upcoming Geminid meteor shower from Sean Welton from Universe Today

Occurring every year in mid-December, the Geminid meteor shower is commonly referred to as the most reliable meteor shower of the year. That is, it almost always puts on a great show!

The Geminid meteor shower is sure to be a stunning show this year, as the Moon will not be visible at night, so its glow will not impede your meteor viewing ability. In addition, the Geminids’ radiant is favorably positioned for most viewers at this time of year. In order to see the most meteors, I suggest the following tips:

• The Geminid meteor shower has a very broad maximum peak. Because of this, the night on which you view the meteors isn’t critical. You will of course, see more meteors on the peak nights. This year the Geminid meteor shower’s peak is the night of December 13th-14th, 2009.
• The best time to view a meteor shower is in the late night to early morning hours. The best time to view a meteor shower typically begins around 2 AM. This is because as the Earth rotates toward dawn, the forward velocity of the planet adds to the linear velocity of the surface and atmosphere. This has the effect of “sweeping up” more meteors.
• If you’re not normally awake at 2 AM, like many people, simply go to sleep very early and set an alarm clock to wake you up to view the meteor shower. Trust me on this point, it is definitely worth it.
• The Geminid meteor shower’s radiant is right near the twin bright stars Castor and Pollux in Gemini. Click the image at top right to see a map (thanks to Stellarium). The trick, however, isn’t to look towards the radiant, but to keep your eyes on the whole sky. While it’s impossible to look at the whole sky, just keep your eyes scanning and alert. This increases your chances of seeing a fleeting meteor or one out of the corner of your eye.
• Darkness is key to proper meteor shower viewing. If you live in a city or other light polluted area, try going to a dark sky site to truly experience a meteor shower. You might be surprised how close a dark sky site is to you! Here are some tips on finding a dark sky near you.

I just finished reading an article published in the October 2009 issue of Physics Today by Prather, Rudolph, and Brissenden titled Teaching and
learning astronomy in the 21st century.

As a high school astronomy teacher I have benefited from the techniques mentioned in the article over the past 2 years as I try to figure out how best to get students involved in their own learning.

Essentially what Prather, Rudolph, and Brissenden have been able to show is that when instructors use the right tools an astronomy course can cover difficult and meaningful material even with non-science majors and produce a measurable gain in student knowledge about the topics in question.

Look-Back Time Lecture-Tutorial Question

The lecture-tutorials, concept questions with peer-instruction, along with the general attitude that students should be engaged in the learning process has helped me to have some very fun and productive astronomy classes so far.

I have used the Astronomy Diagnostic Test in class with some success but I haven’t used the newer Light and Spectroscopy Concept Inventory although I will at the start of the Spring semester. Since I’ve never had any professional development or training with these materials I sometimes struggle to use them effectively, but a motivated instructor can go a long with with just what’s available out there and some willingness to work. Many of these concepts I myself had wrong in some way or another and that has helped me to look for the same sorts of mistakes from my students.

Moon Phases Ranking Tast

Radial Velocity Think-Pair-Share Question

Two great resources to get you started:

1) Astronomy 101 by the Center for Astronomy Education has ways to connect with others wanting to add to astronomy education research or to learn from those that have come before. Check out the teaching strategy section for some fantastic ideas.

2) Astronomy Education Review is an open journal of astronomy education that covers college as well as high school level issues.

I can attest to the fact that using these techniques and these tools really help to create an astronomy course that belongs to everyone and encourages active participation from everyone. It can be hard to let go of a full-class lecture but in the end everybody has a better experience if you just trust in the process.

The Cassini Equinox Mission has produced some INCREDIBLE images of Saturn during the planet’s equinox. This one is completely awe inspiring.

You can follow the mission too and see many many more images.

Check it out.

There is a post over at Universe Today all about the MESSENGER mission to Mercury and the latest and greatest photos of the under-explored planet.

Universe Today: More New Looks at Mercury from MESSENGER

Check out the paw print made from craters. Cool….

I saw a really cool post over on Universe Today about the Lunar Reconnaissance Orbiter and yet another close-up of the moon.

This time there is evidence that really big boulders rolled down the slopes of the Tsiolkovskiy Crater

You can see the path the boulders took and the tracks they left behind them.

The crater rim in stark relief in this image. Dark and deep it looks!

Christopher Go of Cebu City Phillipines managed to catch an incredible transit of Io’s shadow over Ganymede. These are 2 of the moons of Jupiter aka the Jovian moons. This is a very difficult series to actually catch.

Io passes Ganymede in this series of photos taken August 16, 2009. © 2009 Christopher Go

Check out the original post over at SkyandTelescope.com.

We have seen many amateur astronomers in the news lately. Earlier this year Australian amateur astronomer Anthony Wesley captured an image showing the impact scar left on Jupiter by an apparent comet. Then in late 2008 a ninth-grader in NY named Caroline Moore discovered a supernova as an amateur. So this just adds to the list of things amateur astronomers are doing to further the field of astronomy with their own equipment and time.

I have found videos to be some of the best ways to get ideas across in terms of visualizing data or complex ideas. Wired published the best Science Visualizations Videos of 2009 and some are very very cool.My favorite is the explosion of type Ia supernova. Dang…. awesome stuff!