Tuesday, June 19, 2007

planetary nocturne

cloudier for me last night than the night before. good sunset and pink clouds, but saturn and regulus stayed tucked behind the deceivingly absorbant clouds! the moon jumped twelve degrees from last night's position, although if youre in the northern hemisphere you saw it jump south while those of us in the south saw it move up and toward the north.


i also took advantage of my rooftop perspective to capture the city view. thats La Serena in from of the water and Coquimbo on the other side of the bay.



cant wait to see what tonight brings... hopefully not too many clouds wherever we each might be!

hold on to your lightsaber

'cause this is hilarious.



via bad astronomy.

if the video's not working, go here

Monday, June 18, 2007

moon and planet alignment

(for info on the late november 2008 planetary alignment: read this)

WOW!!! if you didnt get out tonight (sunday, june 17, 2007) to see the alignment of the moon, venus, saturn and regulus, you better get out tomorrow and the next night because it will just keep getting better!

just as the sun was setting tonight, i climbed up on my roof to see some gorgeous clouds, a sliver moon and an amazingly bright venus. the line of the 4 spheres was long and noticeable as the bright moon, venus, saturn and regulus were nearly equally spaced. from my view in the southern hemisphere, the moon was the bottom left, then up to the right went venus, saturn and regulus. from the northern hemisphere, their alignment started tonight with la luna on the bottom right with the planets and regulus lining up toward the left.

the moon jumps its position in our sky by nearly 12 degrees a night... it orbits all the way around the earth in one month, or about 30 days and there are 360 degrees in a full circle, so the moon moves about 360/30=12 degrees a night (see here for a more exact calculation... incidentally, this also means that the moon rises 52.7 minutes later each night!). this mean tomorrow night, the moon will line up just above venus, in between venus and saturn! the following night, it will jump again to occult (go in front of) the star regulus (cool)!

here are some simple 2 second exposures i captured....


you can just barely make out saturn and regulus in this shot....


the enthralled photographer sits on her roof on a cold winter night!



keep your eyes up all month as venus and saturn move closer and closer and closer together. their shortest separation will be just farther apart than the moon is wide occuring on june 30th. this month is awesome!!

mountain top storms

my stint observing here is finished, time to head back down to La Serena. in 6 nights i managed to observe anything with gemini for about 2 nights total. not much to do sitting inside clouds during snowstorms! (un)fortunately, it only snowed on the mountain top where i slept during one night and it all melted during the day while i slept. enjoy some photos...


welcomed by a storm.


my fox friends were absent during the storms of the first few nights, but appeared again after the storms passed.



that's gemini on the right and SOAR on the left.



cloudy nights make for horribly ambiguous observing conditions, but they certainly provide beautiful sunsets!


you can barely make out the 4m CTIO dome in this one...


the spiffy control room.




some pictures from clear nights in the past....






Saturday, June 16, 2007

june's nightly spectacles!!

the alignment of the objects in our night sky will provide some very nice early evening viewing for the rest of this month!

SATURDAY, JUNE 16: tomorrow night the waxing sliver moon hangs in the W-NW sky early in the evening. it sits below pollux, one of the two main stars of gemini, with the other, castor, to pollux's right. above the moon to the left is the dashingly bright planet venus. let your eyes follow farther up and to the left of venus and you'll spy a bright planet saturn and then the star regulus.

MONDAY, JUNE 18: saturday's noticeable alignment is a mere prelude to monday night's spectacular view! look to the west to see the bright venus, the crescent moon, saturn and regulus in a straight line from bottom to top!


*note* this picture depicts the view from the northern hemisphere. from the south, the alignment will go from bottom left to top right!!

TUESDAY, JUNE 19: the very next evening, venus and saturn will still be bright and a little closer together, but you'll notice the disappearance of the star regulus as the growing moon occults it by passing right in front of it!

WEDNESDAY, JUNE 20: the line-up evolves. from lower right to upper left: venus, saturn, regulus, la luna. also, in the S-SE, you can see jupiter near the star antares. saturn and venus will not be visible in our sky anymore by august, but jupiter will remain over the next several months! any telescope will easily reveal 4 of jupiter's moons: io, europa, ganymede and callisto.

THURSDAY, JUNE 21: summer officially begins in the northern hemisphere on june 21, the summer solstice, as the north pole points toward the sun. all you in the north can enjoy the longest day of the year (while i try to defrost from the snow storm occuring on this mountain top!)!

SATURDAY, JUNE 30: the biggest show occurs at the very end of june. not only is june 30th the full moon (a blue moon for some), but venus and saturn will appear 0.7 degrees apart in the western sky! for reference, the angular diameter of the full moon on the sky is half a degree. the two planets will be very bright and very close to each other, but they will set soon after sunset so make sure you go outside to enjoy a romantic sunset and planetary spectacle!

keep looking up and enjoy!

Friday, June 15, 2007

one of thousands

the series hometown baghdad is almost over...

science, it works bitches!

i really enjoy the comic series xkcd! here's the fantastic t-shirt that i plan to buy as soon as i move back to the states and can have it shipped to me!

front:


back:

description from the website:
Science: We finally figured out that you could separate fact from superstition by a completely radical method: observation. You can try things, measure them, and see how they work! Bitches.

The graph on the back of the shirt is data from the COBE mission, which looked at the background microwave glow of the universe and found that it fit perfectly with the idea that the universe used to be really hot everywhere. This strongly reinforced the Big Bang theory and was one of the most dramatic examples of an experiment agreeing with a theory in history -- the data points fit perfectly, with error bars too small to draw on the graph. It's one of the most triumphant scientific results in history.

... and the two men that predicted and observed the blackbody nature and anisotropy of the cosmic microwave background radiation were awarded the 2006 nobel prize in physics! go science!

Thursday, June 14, 2007

as the universe expands

the newest edition of the carnival of space is up at star stryder.

i contributed my thoughts on why i think life, in some form, *must* exist somewhere in the universe other than just on earth!

enjoy!

ham and jam

so much for star gazing during this week on the mountain top! eventhough its a new moon now, i'm stuck under the thickest layer of clouds i've seen over these mountains! weather sources last night reported that the freezing line would be at 3,500 meters which is higher than the 2722 meter (8930 ft) altitude of cerro pachon and the gemini-south telescope. when i woke up this afternoon, i saw exactly where the 3500m line is on the nearby mountains across the valley due to the nice layer of snow that appeared overnight!

a while back i mentioned that i enjoyed the dinners at this observatory because there is usually some unidentifiable food item served. as i've lived in chile, i've become more familiar with the local delicacies and have recognized almost everything i've eaten on this observing run! i happened to have my camera with me at dinner tonight and (like a dork) took this picture of my salad plate. theres the typical broccoli, peas, corn, an olive, tomatoes and onions, and then... the mystery. i didnt know what that brown tubular thing was for a long time, and even saw it in its raw form at the farmer's market a few times before realizing what it was.... cochayuyo... a kind of seaweed! it's taste is not as strong as a typical green variety, but there is definitely a seaweed flavor to it. i've mostly seen it mashed up in stews more than served plain like this.

another feature of all night observing is the "night lunch". at this observatory, we fill out a form with many choices for sandwiches and other snacks and then receive a little goodie bag. i decided to be adventurous tonight and try something new. i got one relatively safe sandwich with ham, avocado, cheese and onion. there was an option for "jam" which i was a bit confused about. the flavors looked like the flavors of yogurt that they usually throw into my night lunch so i just chose the apricot. i also created a tocino sandwich, having recently learned that tocino is bacon. i mean, how could one really go wrong with bacon? when i received my night lunch i opened up the sandwiches to inspect and found that you can go wrong with bacon! one sandwich was covered with barely cooked, greasy bacon and the other had both pieces of bread smeared in sticky orange jam! hahaha! oops. i'm not saying that i'm not going to eat them when i get hungry, but i've never had a ham and jam sandwich before!

Wednesday, June 13, 2007

mr wizard

our beloved mr. wizard (don herbert) died today at the age of 89. when i was young, i absolutely loved to watch mr wizard's world on nickelodeon... a true youngin of the 80's i was! i enjoyed that fact that he had kids on the show to help perform different scientific experiments. he had a great way of making science accessible and not being condescending while helping the kids formulate theories to figure out what was really happening! he made me want to figure out how things worked and probably introduced me to skepticism, although i've never recognized that until thinking about it now. i became skeptical when people would try to trick me because i suspected there was some explanation that i should be able to figure out. i also had a really cool magicians kit growing up so i was able to trick other people while understanding the secrets (although my grandpa always got me with his "i have 11 fingers" trick!).

usually mr wizard would introduce an experiment by demonstration... always leaving me and the kid on the show amazed, saying "wow"! some things seemed like magic at first, but 10 minutes later i understood the simple underlying scientific truth (or at least i knew that a scientific explanation existed, even if i didnt understand it!!). i've looked around the video internet world, but i havent found any clips of old experiments from the show. anyone know where i can look to find some?

i've typically considered carl sagan to be the major influence in my decision to study astronomy, but i think mr wizard definitely started me on my journey of questioning and logically understanding the world around me.

Tuesday, June 12, 2007

science and art!

introducing the periodic table of elements printmaking project! a great way to learn a little but about a function of each element thru art!


long nights ahead

i'm heading up to cerro pachon today to start a 6 night observing run on gemini-south. the weather has been pretty crappy for the past week, which already makes for difficult observing, but the nights are also llllooooooonnnnngggggg this time of year so it'll be a work-full week! i'm not-so-secretly hoping for a snow storm, which appears to be in the forecast for two nights from now. it's not that i dont want to observe, it's that i love snow and i havent seen any in a long time other than what sits on top of distant mountain peaks!

i'll leave you with a little entertainment for now. this year marks my 10th time around the sun since graduating high school. thru the wide world of internet connections like facebook and myspace, old friends are contacting each other daily! i was pointed to a 20 minute video collage of my graduating class made by scott roberts. as i was strolling thru memory lane looking at all the familiar faces of my past, i saw a picture of myself that i'd never seen before!! i thought... "wait, was the ME???" this shot comes from around 4th grade with my friends ashley and melissa..... i wonder what they're doing these days? look at that necklace.... and the bandana tied to the belt!! classic! i have NO memory of this outfit or this event, but i stopped the video and laughed out loud for several minutes before gaining my composure again. this photo demonstrates one of the 2 perms i've had in my life and just how blond my hair was!! hahaha! enjoy...

Saturday, June 9, 2007

yellow submarine

brown is for the mama llama, suzie's hair and fred's pajamas, chocolate pudding, mud and dirt and half the sand on grand bahamas.

but what is green for?



the person who leaves a comment with the right answer gets a surprise sent to him or her from chile.

what the world eats

i've been on a food kick lately. not sure why... maybe it's some form of preparation to return to the US....

anyway, i saw this photo essay by peter menzel showing what 16 different families around the world eat in a week, and i think it's fascinating!



via andrea harner

Thursday, June 7, 2007

more space blogs

the 6th installment of carnival of space is up and running at music of the spheres.

my contribution, pale blue dot, comes from last december for the 10th anniversary of carl sagan's death. i talk about his contributions to astronomy, space exploration, skepticism and science public outreach. i tell the story of how i decided to go into astronomy.

i also added a link in the side bar to a great collection of astronomy blogs!

rosetta nebula

another spectacular image posted on APOD today. the rosetta nebula...


towards the top right of the image you can see many bright stars with the same apparent color, crammed together in a cluster. these stars formed all at once and very recently from all the dense gas in the area. when those stars initially sparked and started to burn hydrogen gas in their centers, they started to send a consistent flurry of light particles, photons, out in every direction. as the photons from the brightest and hottest stars started to reach the gas that surrounds the newly-formed stars, the gas began to glow excitedly from the extra energy it gained from the photons! different types of gas glow with different temperatures that astronomers can isolate by using filters during their telescopic observations. here, the red shade is sulfur, the green is hygrogen and the blue is oxygen. individual exposures are taken with each filter, colors are digitally assigned, and then all images are added together to form this beautiful composite!

the above image focuses on a portion of the rosetta nebula, shown in its entirety below. the full gas cloud covers an area on the sky big enough to fit 5 full moons. you can clearly see the stellar cluster in the center of the image.


the open star cluster (NGC 2244) was discovered in 1690 by english astronomer john flamsteed. the diffuse and much fainter nebula around the star cluster wasnt discovered until later. The rosetta nebula is about 50 light-years across and 4,500 light years away. star formation continues to occur in this nebula of gas and dust, so it should shine brightly for many millions of years to come.

bobby

yesterday was the anniversary of the assassination robert f. kennedy... the closest person i have to a political hero. i read a great tribute article by jim booth describing his experience as a teenager on that day nearly 40 years ago. a quote from rfk...

The future does not belong to those who are content with today, apathetic toward common problems and their fellow man alike, timid and fearful in the face of bold projects and new ideas. Rather, it will belong to those who can blend passion, reason and courage in a personal commitment to the great enterprises and ideals of American society.

Wednesday, June 6, 2007

knit graffiti

stockholm, sweden. wonder how long this awesome graffiti will last?



link: maskerade

Tuesday, June 5, 2007

real food

with rising food prices across the US, i was pleased to find a resource to find quality, locally grown products!

enter your city and state at localharvest.org to find farmer's markets, groceries and restaurants that distribute food provided by local farmers. this is one case where i feel that the technology of mass production for cheap is not the advantage!
People worldwide are rediscovering the benefits of buying local food. It is fresher than anything in the supermarket and that means it is tastier and more nutritious. It is also good for your local economy--buying directly from family farmers helps them stay in business.


also, learn what are the world's healthiest foods along with some yummy recipes.

UPDATE: found another cool website listing farms where you can go to pick your own fruits and vegetables!! it also gives techniques for canning and preserving what you pick. awesome!

Monday, June 4, 2007

you're how old, grandma?

i was born and raised just north of cincinnati, ohio, USA. as a kid i loved playing in the woods and grabbing creatures that lived in creeks! there was a small creek near my house, but my favorite one was in a nearby park. i would ride my bike the miles so i could go search for fossils. they were everywhere! i didnt know much about these easily-found trinkets, but i knew that the region was special for having so many fossils and i knew that these little creatures eternally stuck in rocks were really really old!!!

these fun memories happily flood my mind as i try to come to terms with a new feature of my hometown....

the creationist museum....

introducing the most ridiculous thing to come from religious zealots in a long long time... and it's located in the city where i spent my childhood and where most of my extended family resides. somehow i feel hurt by the presence of this museum.

i try to recognize, learn about, appreciate and accept that people in every part of the world live differently. no one else is like me (thats a good thing!) and i'm not like anyone else. these differences i cherish and i have no real interest in spending time pursuading people to believe in all the same things i believe in.... but i have an even harder time understanding how people think the universe is only 6,000 years old, than i have understanding how people still believe everything revolves around the earth!

Lawrence M. Krauss, a theoretical physicist, has said some wonderful things about this issue that i would like to share. please read his top 10 reasons why the universe, the sun, earth, and life are NOT 6,000 years old. he goes on....
There are many and varied ways that modern science has confirmed the history of the Universe, the Solar System, the Earth, and Life on Earth. All of these methods, while independent, are in agreement and they ALL tell us that Life, the Earth, and the Universe are many orders of magnitude older than 6,000 years. There is no scientific room for errors of this many orders of magnitude. It would be like measuring the distance between New York and Los Angeles, and determining it was less than 1 inch. In order to agree with a Young Earth Creationist picture, essentially every facet of modern science - on which we base every aspect of modern technology, our vehicles, our society - would have to be completely incorrect, implying almost everything we base our modern lives on would not work as it does.

why should this be a concern at all? because 3 american republican presidential candidates stated that they do not believe in evolution. these men seek to lead the current superpower nation yet they reject scientific consensus on biology, geology, cosmology and physics because of their literal interpretation of words written in a religious book. to be frank, this scares that crap out of me!

i dont know how i knew when i was so young that the fossils i found were so old, but i'm glad i had the freedom to investigate my intuition and to arrive at my own conclusions. this intellectual freedom is severely denied by the stout belief in any single religious text... yet three men wish to continue spreading "freedom" around the world as they believe they are defending it in the US.

read other reactions at pharyngula's creation museum carnival

Sunday, June 3, 2007

what is a melody?

i've discovered that chileans are very uncreative when it comes to naming streets. every city that i've traveled to in this country (that has at least two streets) has one named Prat and one named O'Higgins**. in general, when you find prat, you've found the main street and you know o'higgins will be cross somewhere nearby! arturo prat was a chilean naval officer in the second half of the 19th century who sailed on a ship called "O'Higgins" which was named after Bernardo O'Higgins - one of the commanders that freed chile from spanish rule in the early 1800's.

in La Serena, prat is a one-way, one lane street dominated by pedestrian traffic. the buildings are mostly two stories tall with shops at ground level and extended porches above. the small stores range from new to used goods, selling clothes, shoes, books, wine, electronics, dollar store stuff, office supplies, etc... vendors stand along the blocks selling a couple dozen manjar sweets. there are often people sitting on benches and others leaning against the building walls with paper cups extended for loose change.

after my spanish class this past wednesday, i was walking along prat wondering about who this historical prat figure actually was when my thoughts were dramatically disturbed by a loud, chaotic and persistent whistling sound. across the street was a man sitting with an overturned bucket and a cup on top. he held an old plastic recorder in his hands and rapidly moved his fingers over the holes as he blew continuously to make some of the most awful high-pitched sounds possible!! there was a slight twinkle in his eye like he knew he couldnt really play any songs, but he was making the effort to entertain, which in his mind must have been worth some monetary donation! i actually laughed out loud at this sight. i'm not sure why i found the situation so funny, but i stopped to survey the scene. i wanted to see how long he would continue "playing" and i wondered how others were reacting. i saw some cringed noses, but mostly people just walked on past without dropping any money. that lack of action says something because i've noticed people here are very generous with their loose change.

the man just kept on playing, so i walked across the street and dropped a 100 peso coin in his cup... i definitely felt entertained!

**almost every US city i've been to has a martin luther king, jr blvd

Saturday, June 2, 2007

buenos aires birthday

i spent a wonderful 5-day vacation in buenos aires, argentina to celebrate the big day... sultry tango shows, malbec wine, incredible (cheap) steaks, walking, talking, freezing, taking pictures, european architecture, south american comfort, old friends, new friends, new spanish, new music, new perspective....



























see the full set of photos here