10 Things: How To Photograph A Meteor Shower

10 Things: How to Photograph a Meteor Shower

Taking photographs of a meteor shower can be an exercise in patience as meteors streak across the sky quickly and unannounced, but with these tips – and some good fortune – you might be rewarded with a great photo.

These tips are meant for a DSLR or mirrorless camera, but some point-and-shoot cameras with manual controls could be used as well.

1. The Photo Op: Perseids Meteors

The Perseids are dusty remnants of comet 109P/Swift-Tuttle.

Earth passes through the comet’s invisible, multi-billion mile trail of tiny debris each year around August, creating a meteor shower of so-called “shooting stars” as the particles are vaporized in our atmosphere.

Perseid meteors already are streaking across the sky. This year’s shower peaks on a moonless summer night -from 4 pm on the 12th until 4 am on the 13th Eastern Daylight Time.

Read more on the Perseids ›

2. Get away from city lights and find a place with dark skies.

10 Things: How To Photograph A Meteor Shower

In this 30 second exposure, a meteor streaks across the sky in Spruce Knob, West Virginia, during the 2016 Perseids meteor shower. Credit: NASA/Bill Ingalls

Too much light and it will be hard for your eyes to see fainter meteors, plus your image will get flooded with the glow of light. Turning down the brightness of the camera’s LCD screen will help keep your eyes adjusted to the dark. The peak of the 2018 Perseid meteor shower occurs just after the new moon, meaning a thin crescent will set long before the best viewing hours, leaving hopeful sky watchers with a moonlight-free sky!

3. Use a tripod.

10 Things: How To Photograph A Meteor Shower

In this ten-second exposure, a meteor streaks across the sky above Washington, DC during the 2015 Perseids meteor shower, Credit: NASA/Joel Kowsky

Meteor photography requires long exposures, and even the steadiest of hands can’t hold a camera still enough for a clear shot. Heavier tripods help reduce shaking caused by wind and footsteps, but even a lightweight tripod will do. You can always place sandbags against the feet of the tripod to add weight and stability. If you don’t have a tripod, you might be able to prop your camera on or up against something around you, but be sure to secure your camera.

4. Use a wide-angle lens.

10 Things: How To Photograph A Meteor Shower

In this 30 second exposure taken with a circular fish-eye lens, a meteor streaks across the sky during the 2016 Perseids meteor shower as a photographer wipes moisture from the camera lens Friday, August 12, 2016 in Spruce Knob, West Virginia. Credit: NASA/Bill Ingalls

A wide-angle lens will capture more of the sky and give you a greater chance of capturing a meteor in your shot, while a zoom lens captures a smaller area of the sky. The odds of a meteor streaking past that small patch are lower.

5. Use a shutter release cable or the camera’s built-in timer.

10 Things: How To Photograph A Meteor Shower

Long exposures are not just for meteors. In this shot taken at Joshua Tree National Park, a hiker’s headlamp leaves a trail of light along a twilight path. Credit: National Park Service / Hannah Schwalbe

A tripod does a great job of reducing most of the shaking your camera experiences, but even the act of pressing the shutter button can blur your extended exposure. Using the self-timer gives you several seconds for any shaking from pressing the shutter button to stop before the shutter is released. A shutter release cable (without a self-timer) eliminates the need to touch the camera at all. And if your camera has wifi capabilities, you might be able to activate the shutter from a mobile device.

6. Manually focus your lens.

10 Things: How To Photograph A Meteor Shower

In this 30 second exposure, a meteor streaks across the sky during the annual Perseids meteor shower Friday, August 12, 2016 in Spruce Knob, West Virginia. Credit: NASA/Bill Ingalls

At night, autofocus will struggle to find something on which to focus. Setting your focus to infinity will get you close, but chances are you’ll have to take some test images and do some fine tuning. With your camera on a tripod, take a test image lasting a few seconds, then use the camera’s screen to review the image. Zoom in to a star to see how sharp your focus is. If the stars look like fuzzy blobs, make tiny adjustments to the focus and take another test image.

Repeat until you are happy with the result.

If your camera has a zoomable electronic viewfinder or live view option, you might be able to zoom to a star and focus without having to take a test image.

7. Aim your camera.

10 Things: How To Photograph A Meteor Shower

The Perseids appear to radiate from the constellation Perseus, visible in the northern sky soon after sunset this time of year.

Even though we don’t know when or where a single meteor will appear, we do know the general area from which they’ll originate.

Meteor showers get their name based on the point in the sky from which they appear to radiate. In the case of the Perseids, during their peak, they appear to come from the direction of the constellation Perseus in the northern sky.

8. Calculate your exposure time.

10 Things: How To Photograph A Meteor Shower

In this 20-second exposure, a meteor lights up the sky over the top of a mountain ridge near Park City, Utah. Even though this image was captured during the annual Perseid meteor shower, this “shooting star” is probably not one of the Perseid meteors, which originate from material left behind by Comet Swift-Tuttle. Instead, it’s likely one of the many bits of rock and dust that randomly fall into the atmosphere on any given night. Credit: NASA/Bill Dunford

As Earth rotates, the stars in the sky appear to move, and if your shutter is open long enough, you might capture some of that movement. If you want to avoid apparent star movement, you can follow the 500 Rule. Take 500 and divide it by the length in millimeters of your lens. The resulting number is the length of time in seconds that you can keep your shutter open before seeing star trails. For example, if you’re using a 20 mm lens, 25 seconds (500 divided by 20) is the longest you can set your exposure time before star trails start to show up in your images.

9. Experiment!

10 Things: How To Photograph A Meteor Shower

In this 30 second exposure photo, hikers find their way to the top of Spruce Knob in West Virginia to view the annual Perseids meteor shower, Friday, August 12, 2016. Credit: NASA/Bill Ingalls

Once you know the maximum exposure time, you can set your shutter priority to that length and let the camera calculate other settings for your first image. Depending on how the image turns out, you can manually adjust aperture (set it to a lower number if the image is too dark) and ISO (set it to a higher number if the image is too dark) to improve your next images. Changing only one setting at a time will give you a better understanding of how those changes affect your image.

10. Enjoy the show.

10 Things: How To Photograph A Meteor Shower

The crew of the International Space Station captured this Perseid meteor falling to Earth over China in 2011. Credit: NASA

With your camera settings adjusted, capturing that perfect photo is just a matter of time and luck. The highest rate of meteors visible per hour is in the hours after midnight and before dawn. Set up your camera next to a lounge chair or a blanket to witness the wonder of a meteor shower for yourself – and, with any luck, you’ll take home some envy-inducing shots, too!

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.

More Posts from Edu-fuck-cated and Others

4 years ago

The reality about spoken french

We don’t use the negation ne. We say Je sais pas (I don’t know) or On a pas à le faire (we don’t have to do it),

Speaking of which, we prefer using on rather than the pompous nous : On est arrivé-es (we’ve arrived), On y va? (shall we go)

Speaking of which, our questions are often affirmative sentences ending with a question mark (i.e. : a high-pitched tone) : Tu viens? (are you coming), T’en veux un-e? (do you want one).

Speaking of which, we chew words. When followed by words starting with a consonant, personal pronouns can lose their final letter : J’te l’dis! rather than Je te le dis (I’m telling you).

Speaking of which, we’re lazy : Je can be Che (chais pas), Il can be Y (r’garde, y’a un chat!) and grunt : many euh (uh), ah, bah (hum), ben (well), hein (tf?) and rhooo/rhaaa (ffs). We often start sentences with but : Mais tu saoules! (you’re annoying) to express displeasure.

Speaking of which, on top of dropping négations, we drop pronouns : You’re being a pain in my ass should be Tu me fais chier but can be Tu fais chier - maybe to make it universal or dramatic.

Speaking of which, we thrive on sarcasm and irony. To someone who’s babbling, we’ll answer It makes my leg look good.

Speaking of which, we repeat (personal) pronouns at the beginning or end of sentences. We’re likely to ask Qu’est-ce qu’il en dit, lui? and answer Moi, je veux bien (tonic pronouns, careful!).

Speaking of which, we like to use the conditional mode to indicate a wish or hypothesis : lots of Si j’avais su, j’aurais dit oui (had i known, i’d have said yes), J’aimerais bien pouvoir- (I wish I could-), etc.

Speaking of which, we add useless words : Bien (j’irais bien), Petit (un petit peu), Très (très vrai), Trop (je ne sais pas trop), ça (C’est quoi, ça?)…

image

Speaking of which, let’s stop before you all get disgusted and unfollow me. Remember this is spoken, private french and doesn’t apply to formal situations!


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4 years ago

How did you get started? Did you have a teacher, did you self teach? And if so, what were the best resources you used to teach yourself? Is it hard finding books that help you learn?

I got started with French in high school, however I’ve learned the language mainly through teaching myself and tutors. I started teaching myself Chinese last year. Now I see a tutor once a week and continue to teach myself as well. Russian is kind of a hot mess atm so I’ll hold off on giving advice for that language haha!

In general I use a variety of books (textbooks and for fun books x x), YouTube (French | Chinese), tutors via italki or a language exchange partner via Tandem, Tumblr, Discord, etc. Here are also a few useful French and Chinese resources.

The most useful thing for me has always been a tutor or a language exchange partner, as it forces me to use the language and not just passively absorb information. That being said, any form of practising helps. There’s really no such thing as the best textbook or best method. Find a few resources that keep you interested and enjoy the ride :)


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4 years ago
Un Chat / Une Chatte  A Cat (m.) / (f.) Un Chaton   a Kitten Un Matou   a Tomcat Un Chat Domestique 

un chat / une chatte  a cat (m.) / (f.) un chaton   a kitten un matou   a tomcat un chat domestique   a house cat / a domestic cat un (chat) persan   a persian cat un (chat) siamois   a siamese cat un (chat) tigré   a tabby cat le pélage, le poil   fur les pattes (f.)   paws les griffes rétractiles   retractable claws la queue   tail une litière   a litter box une chatière   a cat flap / a cat door la nourriture pour chat    cat food ronronner   to purr miauler   to meow feuler   to yowl


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3 years ago

Aspirated H- nouns

I have mentioned before that h- nouns, depending on if they come from the (most likely) Germanic or the Latin language, will be treated differently: a Frankish noun will not have a liaison (Un haricot, Les-/-haricots) but a Latin noun will have one (Un-(h)iver, Les-z-hommes). Think of them as the aspirated H- and the mute H-.

A few things to note:

Most of H- nouns are mute as French is a romance language, direct heir of Latin - the roman empire is known for philosophy, thinking, culture, politics. The Franks however led simpler lives and spent most of their time outside; when they invaded us, they left their mark in the vocabulary, especially in practical things: trees, foods, animals, weapons...

If you're unsure, try to think of the translation of a noun in Italian, Spanish, Portuguese, Romanian, or even Latin: if they're siblings, your noun is romance. Homme: hombre, uomo, etc.

If you don't know those languages, here's another test: try doing L' + noun and see if it could get mixed up with another word. Ex: La hache > L'hache > Lâche. This is especially true if the following vowel is -a- as it would be harder to pronounce.

If the word is borrowed to English (a Germanic heir), the H- is aspirated (Hamburger, Hockey, Hippie).

If an aspirated H- noun doesn't come from the Germanic language ("Vieux francique"), it might come from Old Norse (Houle), Arabic (Hasard), Latin (Harpe), or an onomatopeia (ex: An owl is Un hibou, which might just be a version of Hoo hoo, just like the Egyptians called cats "Mau").

Aspirated H- Nouns

A few common aspirated H- nouns:

Hache, f - ax

Haie, f - hedge, fence

Haine, f - hatred

Hâle, f - slight tan

Hameau, m - hamlet

Hanche, f - hip

Handicap, m - disability

Harcèlement, m - harassment

Haricot, m - bean

Harnais, m - harness

Hasard, m - chance, coincidence

Hâte, f - haste

Haut, m - top (Le haut du mur)

Hauteur, f - height (of objects)

Hérisson, m - hedgehog

Héros, m - hero

Heurtoir, m - door knocker

Hiérarchie, f - hierarchy

Hochement, m - nodding

Homard, m - lobster

Hongrie, f - Hungary

Honte, f - shame

Hors d'oeuvre, m - appetizer

Houle, f - swell (sea)

Hoquet, m - hiccups

Hors-la-loi - outlaw

Huis clos, m - closed session

Huitième - eighth

Hurlement, m - scream


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3 years ago

Chrome extensions I actually use as a mentally ill university student

Making websites easier to digest:

Dark Reader - Changes any webpage to dark mode.

Mercury Reader - Simplifies the layout of any webpage to eliminate distractions and irritating formatting.

Podcastle AI - Turns any article into a podcast. This is a lifesaver for being able to process what I’m reading, to be honest.

Spelling/grammar:

LanguageTool - Spelling and grammar check for those of us who regularly type in more than one language.

Grammarly - Spelling and grammar check for those of us who only type in English. Can be used with LanguageTool installed, which is what I do.

Google Dictionary - Define any word on the webpage with a double-click.

Google Translate - Translate an entire webpage or even just a short segment.

Misc:

AdGuard Adblocker - After trying quite a few adblocker options, this is the one I find the best.

The Great Suspender - Automatically suspend inactive tabs to help with performance. <- as an edit, I don’t believe this is available anymore

Honey - Try coupon codes automatically to save money on online purchases.

Built-in Chrome tab grouping - Group your tabs to keep organized and minimize distracting clutter.


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4 years ago

Cozy Vocab in French

Some cozy vocabulary in French… so you can have a cozy evening!

Cozy Vocab In French

une couverture - a blanket

une bougie - a candle

une tasse de café -  a cup of coffee

un thé - a tea

un chocolat chaud - a hot cocoa

les biscuits - cookies

une guimauve - a marshmallow

une pâtisserie - a pastry une cheminée - a chimney

les chaussettes - socks

un oreiller - a pillow

un livre - a book

un pull-over - a sweater

un nounours - a teddy bear

prendre une douche chaude - to take a hot shower

Cozy Vocab In French

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4 years ago

how to get the most out of duolingo

duolingo is a great app/website that you can use to begin learning a foreign language, but unfortunately you most likely won’t be able to fully learn the language if you only use duolingo. so, here are some things that you can do to get the most out of duolingo and to learn your target better.

1. read the lessons - most of the languages (especially if you’re learning in english) have little lessons. however, these are only available on the website, so if you use the app, you might want to occasionally check in online and click on the little lightbulb to read the lessons. they usually aren’t super in-depth, but for beginners it is super helpful and not as heavy as a textbook grammar guide.

2. don’t work too fast and always revise - if you’re knocking out a bunch of lessons a day thinking you’ll learn faster, this could be true, but most likely it’s not. if you work at a steady pace and remember to do it once a day (preferably at the same time – they say this is better for memorization) you will learn it better. if you do one lesson or maybe two a day and you still have time for more, go ahead and revise a little. when i first started french, i did two lessons a day and then always revised to make sure i remembered everything.

3. study the vocabulary - not all of the courses have this, but on the online version some of the courses have a tab on the top that says “words” and this is a great place to find all the vocabulary that you’ve been learning in your courses. go through the list and find all the words you don’t know that well or at all and make some flashcards or a set on quizlet and study them. learn how to spell them, pronounce them, conjugate them, and use them within a sentence. if you do this, you’ll always have a solid base to fall back on. this goes for learning conjugations, as well.

4. start learning your native language in your target language - after you’ve finished all the courses in your target language, feel free to revise daily. you might want to, however, start learning your native language in your target language. this might not be an option for all the languages offered on duolingo. for me, i learned english in french. this was helpful for picking up more phrases and seeing more common ways that french people write. if you’re feeling particularly confident and know your stuff really well, try learning a new language in your target language. for example, i did the spanish course in french, which definitely helped with my french phrasing while translating. 

5. don’t stop after you finish your course - if you’ve done it right, finishing your course on duolingo will give you a really good start to the language you’re learning. after you’ve finished, keep revising, but also go ahead and start learning your target language in different ways. i made a whole in-depth post on how to learn a language online here. some ideas are reading children books, watching youtube videos and movies, and talking to natives all in your target language. never give up because it will be worth it. 


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4 years ago

dessiner (to draw) present tense🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️🕊️

je dessine                      [i draw]

tu dessines                   [you draw]

il/elle/on dessine         [he/she/it/we draw]

nous dissinons             [we draw]

vous dessinez               [you draw]

ils/elles dessinent        [they draw]


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3 years ago

♥French Vocabulary : flowers ♥

une fleur = a flower

un fleuriste = a florist

un pétale = a petal

une rose = a rose

un bleuet = a cornflower

un lys = a lily

une marguerite = a daisy

une tulipe = a tulip

une violette = a violet

un tournesol = a sunflower

un oeillet = a carnation

fleurir = to bloom

un jardin = a garden

une graine = a seed

creuser = to dig

arroser = to water

coloré = colourful

♥French Vocabulary : Flowers ♥

(by Francesco Hayez)


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4 years ago

tips for college classes that nobody tells you

1. don’t load your hardest classes in one semester. find out which classes within your major are rumored to be tough and divide them out throughout your time in college.

2. don’t show up to class earlier than 10 mins early. the class before yours will likely still be in there finishing up, and you’ll either walk in in the middle of a lecture or have to stand outside for a long time. just get there 5-10 mins early and you’ll be fine!

3. create a group chat for all of your classes. find a few friends from class and make a group chat! this can be either on imessage, groupme, or whatever is most popular to use at your school. this can be your go-to place to ask questions about assignments, due dates, etc. before asking the professor!

4. as for class participation, quality>quantity. in most college classes (with the exception of huge lectures) participation accounts for a chunk of your grade, and some professors take that grade very seriously. however, this doesn’t mean you should raise your hand and talk whenever you find the opportunity- your professor (and your classmates, for that matter) will appreciate you much more if your comments and questions are less frequent and have more to add to the class. 

5. the readings listed under a date in a class are due for that class, they are not homework for the next class. this is one of the biggest issues college freshman have at the beginning of their first semester. unless the professor specifically says otherwise, if the syllabus is set up to list each class individually with the readings underneath/beside the class, they are due for that class, not the next one.

6. make yourself known to your professor! this is especially important for a large lecture, where they won’t get to know you otherwise. stop by their office hours or go up to them after class and introduce yourself- making a connection with your professor can open more doors than you may know!

7. rate my professor is not always accurate. professors can get better or worse, and different people have different experiences. though it’s a great tool and you can still use it to see what people think, if you’re stuck with a professor that is ranked low, it doesn’t necessarily mean you’ll have a bad time in that class.

8. sometimes it’s okay to just skim your readings. you’ll find out soon enough if your professor basically goes over exactly what the reading says every class. if so, you only need to skim it over and take light notes. don’t spend hours closely reading a textbook that your professor is just going to go over word for word the next day (unless it helps you- if so, do it!)

9. the guy in class that answers every question isn’t smarter than you. that’s it.

10. if you come from a lower income area or a worse school district than your peers, you may be playing the “catch up game” for a while. it’s okay! i personally go to a college where most students here come from wealthy families across the world and were sent to the best high schools possible. if you, like me, come from a mediocre public school, you may feel like you’re a beat behind your peers when it comes to background knowledge. don’t give up. work hard, you’ll catch up with them soon. (also- they aren’t smarter than you just because they had better opportunities than you did growing up. at the end of the day, you ended up at the same college)


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