The Moon In Motion

The Moon in Motion

Happy New Year! And happy supermoon! Tonight, the Moon will appear extra big and bright to welcome us into 2018 – about 6% bigger and 14% brighter than the average full Moon. And how do we know that? Well, each fall, our science visualizer Ernie Wright uses data from the Lunar Reconnaissance Orbiter (LRO) to render over a quarter of a million images of the Moon. He combines these images into an interactive visualization, Moon Phase and Libration, which depicts the Moon at every day and hour for the coming year. 

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Want to see what the Moon will look like on your birthday this year? Just put in the date, and even the hour (in Universal Time) you were born to see your birthday Moon.

Our Moon is quite dynamic. In addition to Moon phases, our Moon appears to get bigger and smaller throughout the year, and it wobbles! Or at least it looks that way to us on Earth. This wobbling is called libration, from the Latin for ‘balance scale’ (libra). Wright relies on LRO maps of the Moon and NASA orbit calculations to create the most accurate depiction of the 6 ways our Moon moves from our perspective.

1. Phases

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The Moon phases we see on Earth are caused by the changing positions of the Earth and Moon relative to the Sun. The Sun always illuminates half of the Moon, but we see changing shapes as the Moon revolves around the Earth. Wright uses a software library called SPICE to calculate the position and orientation of the Moon and Earth at every moment of the year. With his visualization, you can input any day and time of the year and see what the Moon will look like!

2. Shape of the Moon

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Check out that crater detail! The Moon is not a smooth sphere. It’s covered in mountains and valleys and thanks to LRO, we know the shape of the Moon better than any other celestial body in the universe. To get the most accurate depiction possible of where the sunlight falls on the lunar surface throughout the month, Wright uses the same graphics software used by Hollywood design studios, including Pixar, and a method called ‘raytracing’ to calculate the intricate patterns of light and shadow on the Moon’s surface, and he checks the accuracy of his renders against photographs of the Moon he takes through his own telescope.

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3. Apparent Size 

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The Moon Phase and Libration visualization shows you the apparent size of the Moon. The Moon’s orbit is elliptical, instead of circular - so sometimes it is closer to the Earth and sometimes it is farther. You’ve probably heard the term “supermoon.” This describes a full Moon at or near perigee (the point when the Moon is closest to the Earth in its orbit). A supermoon can appear up to 14% bigger and brighter than a full Moon at apogee (the point when the Moon is farthest from the Earth in its orbit). 

Our supermoon tonight is a full Moon very close to perigee, and will appear to be about 14% bigger than the July 27 full Moon, the smallest full Moon of 2018, occurring at apogee. Input those dates into the Moon Phase and Libration visualization to see this difference in apparent size!

4. East-West Libration

Over a month, the Moon appears to nod, twist, and roll. The east-west motion, called ‘libration in longitude’, is another effect of the Moon’s elliptical orbital path. As the Moon travels around the Earth, it goes faster or slower, depending on how close it is to the Earth. When the Moon gets close to the Earth, it speeds up thanks to an additional pull from Earth’s gravity. Then it slows down, when it’s farther from the Earth. While this speed in orbital motion changes, the rotational speed of the Moon stays constant. 

This means that when the Moon moves faster around the Earth, the Moon itself doesn’t rotate quite enough to keep the same exact side facing us and we get to see a little more of the eastern side of the Moon. When the Moon moves more slowly around the Earth, its rotation gets a little ahead, and we see a bit more of its western side.

5. North-South Libration

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The Moon also appears to nod, as if it were saying “yes,” a motion called ‘libration in latitude’. This is caused by the 5 degree tilt of the Moon’s orbit around the Earth. Sometimes the Moon is above the Earth’s northern hemisphere and sometimes it’s below the Earth’s southern hemisphere, and this lets us occasionally see slightly more of the northern or southern hemispheres of the Moon! 

6. Axis Angle

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Finally, the Moon appears to tilt back and forth like a metronome. The tilt of the Moon’s orbit contributes to this, but it’s mostly because of the 23.5 degree tilt of our own observing platform, the Earth. Imagine standing sideways on a ramp. Look left, and the ramp slopes up. Look right and the ramp slopes down. 

Now look in front of you. The horizon will look higher on the right, lower on the left (try this by tilting your head left). But if you turn around, the horizon appears to tilt the opposite way (tilt your head to the right). The tilted platform of the Earth works the same way as we watch the Moon. Every two weeks we have to look in the opposite direction to see the Moon, and the ground beneath our feet is then tilted the opposite way as well.

So put this all together, and you get this:

Beautiful isn’t it? See if you can notice these phenomena when you observe the Moon. And keep coming back all year to check on the Moon’s changing appearance and help plan your observing sessions.

Follow @NASAMoon on Twitter to keep up with the latest lunar updates. 

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

More Posts from Tipsorina and Others

5 years ago

THROUGH A RAPIST’S EYES” (PLS TAKE TIME TO READ THIS. It may save a life, It may save your life.)

An Article from Neena Susan Thomas

“Through a rapist’s eyes. A group of rapists and date rapists in prison were interview…ed on what they look for in a potential victim and here are some interesting facts:

1] The first thing men look for in a potential victim is hairstyle. They are most likely to go after a woman with a ponytail, bun! , braid, or other hairstyle that can easily be grabbed. They are also likely to go after a woman with long hair. Women with short hair are not common targets.

2] The second thing men look for is clothing. They will look for women who’s clothing is easy to remove quickly. Many of them carry scissors around to cut clothing.

3] They also look for women using their cell phone, searching through their purse or doing other activities while walking because they are off guard and can be easily overpowered.

4] The number one place women are abducted from / attacked at is grocery store parking lots.

5] Number two is office parking lots/garages.

6] Number three is public restrooms.

7] The thing about these men is that they are looking to grab a woman and quickly move her to a second location where they don’t have to worry about getting caught.

8] If you put up any kind of a fight at all, they get discouraged because it only takes a minute or two for them to realize that going after you isn’t worth it because it will be time-consuming.

9] These men said they would not pick on women who have umbrellas,or other similar objects that can be used from a distance, in their hands.

10] Keys are not a deterrent because you have to get really close to the attacker to use them as a weapon. So, the idea is to convince these guys you’re not worth it.

POINTS THAT WE SHOULD REMEMBER:

1] If someone is following behind you on a street or in a garage or with you in an elevator or stairwell, look them in the face and ask them a question, like what time is it, or make general small talk: can’t believe it is so cold out here, we’re in for a bad winter. Now that you’ve seen their faces and could identify them in a line- up, you lose appeal as a target.

2] If someone is coming toward you, hold out your hands in front of you and yell Stop or Stay back! Most of the rapists this man talked to said they’d leave a woman alone if she yelled or showed that she would not be afraid to fight back. Again, they are looking for an EASY target.

3] If you carry pepper spray (this instructor was a huge advocate of it and carries it with him wherever he goes,) yelling I HAVE PEPPER SPRAY and holding it out will be a deterrent.

4] If someone grabs you, you can’t beat them with strength but you can do it by outsmarting them. If you are grabbed around the waist from behind, pinch the attacker either under the arm between the elbow and armpit or in the upper inner thigh – HARD. One woman in a class this guy taught told him she used the underarm pinch on a guy who was trying to date rape her and was so upset she broke through the skin and tore out muscle strands the guy needed stitches. Try pinching yourself in those places as hard as you can stand it; it really hurts.

5] After the initial hit, always go for the groin. I know from a particularly unfortunate experience that if you slap a guy’s parts it is extremely painful. You might think that you’ll anger the guy and make him want to hurt you more, but the thing these rapists told our instructor is that they want a woman who will not cause him a lot of trouble. Start causing trouble, and he’s out of there.

6] When the guy puts his hands up to you, grab his first two fingers and bend them back as far as possible with as much pressure pushing down on them as possible. The instructor did it to me without using much pressure, and I ended up on my knees and both knuckles cracked audibly.

7] Of course the things we always hear still apply. Always be aware of your surroundings, take someone with you if you can and if you see any odd behavior, don’t dismiss it, go with your instincts. You may feel little silly at the time, but you’d feel much worse if the guy really was trouble.

FINALLY, PLEASE REMEMBER THESE AS WELL ….

1. Tip from Tae Kwon Do: The elbow is the strongest point on your body. If you are close enough to use it, do it.

2. Learned this from a tourist guide to New Orleans : if a robber asks for your wallet and/or purse, DO NOT HAND IT TO HIM. Toss it away from you…. chances are that he is more interested in your wallet and/or purse than you and he will go for the wallet/purse. RUN LIKE MAD IN THE OTHER DIRECTION!

3. If you are ever thrown into the trunk of a car: Kick out the back tail lights and stick your arm out the hole and start waving like crazy. The driver won’t see you but everybody else will. This has saved lives.

4. Women have a tendency to get into their cars after shopping,eating, working, etc., and just sit (doing their checkbook, or making a list, etc. DON’T DO THIS! The predator will be watching you, and this is the perfect opportunity for him to get in on the passenger side,put a gun to your head, and tell you where to go. AS SOON AS YOU CLOSE the DOORS , LEAVE.

5. A few notes about getting into your car in a parking lot, or parking garage:

a. Be aware: look around your car as someone may be hiding at the passenger side , peek into your car, inside the passenger side floor, and in the back seat. ( DO THIS TOO BEFORE RIDING A TAXI CAB) .

b. If you are parked next to a big van, enter your car from the passenger door. Most serial killers attack their victims by pulling them into their vans while the women are attempting to get into their cars.

c. Look at the car parked on the driver’s side of your vehicle, and the passenger side. If a male is sitting alone in the seat nearest your car, you may want to walk back into the mall, or work, and get a guard/policeman to walk you back out. IT IS ALWAYS BETTER TO BE SAFE THAN SORRY. (And better paranoid than dead.)

6. ALWAYS take the elevator instead of the stairs. (Stairwells are horrible places to be alone and the perfect crime spot).

7. If the predator has a gun and you are not under his control, ALWAYS RUN! The predator will only hit you (a running target) 4 in 100 times; And even then, it most likely WILL NOT be a vital organ. RUN!

8. As women, we are always trying to be sympathetic: STOP IT! It may get you raped, or killed. Ted Bundy, the serial killer, was a good-looking, well educated man, who ALWAYS played on the sympathies of unsuspecting women. He walked with a cane, or a limp, and often asked “for help” into his vehicle or with his vehicle, which is when he abducted his next victim.

Send this to any woman you know that may need to be reminded that the world we live in has a lot of crazies in it and it’s better safe than sorry.

If u have compassion reblog this post. ‘Helping hands are better than Praying Lips’ – give us your helping hand.

REBLOG THIS AND LET EVERY GIRL KNOW AT LEAST PEOPLE WILL KNOW WHATS GOING ON IN THIS WORLD. So please reblog this….Your one reblog can Help to spread this information.

THIS COULD ACTUALLY SAVE A LIFE.”

5 years ago
Did Y’all See This Shit
Did Y’all See This Shit

did y’all see this shit

5 years ago
Https://twitter.com/Mexicolore/status/1109509361049702406
Https://twitter.com/Mexicolore/status/1109509361049702406

https://twitter.com/Mexicolore/status/1109509361049702406

http://www.mexicolore.co.uk/maya/teachers/resource-the-boys-in-the-band

5 years ago
Examples Of A Brocken Spectre, A phenomenon Where A Person’s Giant Shadow Appears Magnified Onto Clouds
Examples Of A Brocken Spectre, A phenomenon Where A Person’s Giant Shadow Appears Magnified Onto Clouds

Examples of a Brocken Spectre, a phenomenon where a person’s giant shadow appears magnified onto clouds miles away. The shadow from the sun behind the person creates a halo, giving it an angelic appearance. This mostly occurs on any misty mountainsides or cloud banks, and can even be seen from aeroplanes.

5 years ago

Badass Playlist

(The playlist you need to play when you feel like you need 50 strippers backing you and angels with hair as high as the heavens (hair metal bands)) (This also works great to drive to)

1) Wild Side–Mötley Crüe 

2) Hunger–King Kobra 

3) Breathless–Quiet Riot 

4) The Wild and the Young–Quiet Riot 

5) Shout at the Devil–Mötley Crüe 

6) Girls, Girls, Girls–Mötley Crüe 

7) Sumthin’ for Nothin’–Mötley Crüe 

8) Highway Tune–Greta Van Fleet

9) Uncle Tom’s Cabin–Warrant 

10) Nobody’s Fool–Cinderella 

11) Cherry Pie-Warrant 

12) Kickstart my Heart–Mötley Crüe 

13) Push, Push–Cinderella 

14) Gypsy Road–Cinderella 

15) Dancing on Glass–Mötley Crüe 

16) Still of the Night–Whitesnake 

17) Shake Me–Cinderella 

18) Let’s Get Crazy–Quiet Riot 

19) St. John–Aerosmith 

20) All in the Name Of…–Mötley Crüe (Even though the lyrics are quite questionable)

21) Looks that Kill–Mötley Crüe

22) Ten Seconds to Love–Mötley Crüe 

23) Hell on Wheels–Cinderella 

24) Somebody Save Me–Cinderella 

25) Put Up or Shut Up–Quiet Riot 

5 years ago

me: haha oh god this is so bad im making so many unsupported claims and pulling all this analysis out of my ass

my prof in the margins: excellent analysis!

me: 

Me: Haha Oh God This Is So Bad Im Making So Many Unsupported Claims And Pulling All This Analysis Out
5 years ago

Historically Accurate Offerings to the Theoi

Zeus

Oak

Carnations

Olive branches

Styrax incense

Eagle, bull, swan images

Hera

Lilies

Peacock feathers or images

Pomegranate

Incenses

Cuckoo images

Athena

Olive branch/oil/fruit

Weavings

Myrrh incense

Perfume

Owl images

Apollon

Laurel

Red roses, sunflowers

Frankincense (manna) incense

Palm tree

Raven, swan, wolf, mouse, dolphin images

Artemis

Cedar, palm and cypress trees

Tokens of deer

Jasmine

Myrtle, white flowers

Frankincense (manna) incense

Amaranthus

Peanut

Wormwood

Deer, dog, bear, partidge, quail images

Hestia

Incenses

Chaste-tree

Pig images

Poseidon

Sea anemone

Myrrh incense

Pine

Bull, dolphin, horse images

Dionysos

Ivy

Grape vine

Pine

Styrax incense

Leopard, panther, donkey, bull images

Hermes

Tongue-shaped tokens

Rosemary, saffron

Almond tree and pine tree

Frankincense and styrax incense

Mint (for Kthonios epithet)

Cow, ram, hawk, turtle, hare images

Wild strawberry (purslane)

Ares

Bronze weapons

Frankincense (manna) incense

Swan, vulture, dragon/poisonous snake, owl images

Aphrodite

Roses, myrtle, anemone (poppy)

Quince

Apple, pomegranate

Perfumes and fragrances as incense

Dove, goose, sparrow, turtle images

Hephaistos

Daisies

Frankincense (manna) incense

Donkey, dog, crane images

Asklepios

Frankincense (manna) incense

Bread

Serpent, dog, goose, rooster images

Pan

Pine, beech trees

Fern

Wild flowers

Herbs burnt as incense and the smell of perfumes

Reeds

Goat, turtle images

Demeter

Poppy

Tokens of pigs

Styrax incense

Mint (for Kthonia epithet)

Wheat

Dove, bee, pig images

Persephone

Asphodel

Wheat

Hades

Pitchfork

Pomegranate

Daffodil

Styrax incense

Dried laurel leaves

Poplar, cypress trees

Mint

Daffodil

Hekate

Saffron

Rosemary

Garlic

Red Mullet

Amphiphon (candy)

Styrax incense

Dry laurel leaves

Oak

Ferret, dog, bull, lioness images

Source: LABRYS’ Hellenic Polytheism: Household Worship and Theoi.com

5 years ago
Lanzarote, Spain: British Artist Jason Decaires Taylor Has Finally Completed His Monumental Underwater
Lanzarote, Spain: British Artist Jason Decaires Taylor Has Finally Completed His Monumental Underwater
Lanzarote, Spain: British Artist Jason Decaires Taylor Has Finally Completed His Monumental Underwater
Lanzarote, Spain: British Artist Jason Decaires Taylor Has Finally Completed His Monumental Underwater
Lanzarote, Spain: British Artist Jason Decaires Taylor Has Finally Completed His Monumental Underwater
Lanzarote, Spain: British Artist Jason Decaires Taylor Has Finally Completed His Monumental Underwater
Lanzarote, Spain: British Artist Jason Decaires Taylor Has Finally Completed His Monumental Underwater
Lanzarote, Spain: British Artist Jason Decaires Taylor Has Finally Completed His Monumental Underwater
Lanzarote, Spain: British Artist Jason Decaires Taylor Has Finally Completed His Monumental Underwater

Lanzarote, Spain: british artist Jason Decaires Taylor has finally completed his monumental underwater project Museo Atlantico.

5 years ago

Sometimes we look at bizarre catwalk fashions like…

Sometimes We Look At Bizarre Catwalk Fashions Like…

“What was that designer ON?? Nobody would ever wear that!!!”

…But sometimes I stop and think about what fashion designers have to work with.

I mean, as animals, we did not develop a very design-able shape.

Sometimes We Look At Bizarre Catwalk Fashions Like…

(^THIS is a designable shape.)

We developed these weird, organic shapes and then decided we wanted to put things ON our shape. And that was hard.

Sometimes We Look At Bizarre Catwalk Fashions Like…

(^This is NOT a designable shape, especially since the arms don’t just stay up like that and the whole thing’s always moving…)

I mean, think how hard it was to come up a way to put on clothing that would stay on your body while you’re hunting and gathering and keep you warm, made mostly out of the skins of OTHER animals, which ALSO do not grow in nice, flat, straight-edged pieces:

Sometimes We Look At Bizarre Catwalk Fashions Like…

(^Working out THIS would have been very difficult. We’ve got ideas now to work with, stuff like “neck hole” and “arm holes” and “sleeves” and “loincloth”… but they had to figure that shit out from SCRATCH.)

And then different groups of people in different areas decided that certain things in clothing were “normal”. People in Polynesia were like, “Hey, clothing can be grass!”

Sometimes We Look At Bizarre Catwalk Fashions Like…

And people in Europe were like, “Hey! Clothing can be pointy shoes!”

Sometimes We Look At Bizarre Catwalk Fashions Like…

And people in east Africa were like, “Hey! Clothing can be big flat collars!”

Sometimes We Look At Bizarre Catwalk Fashions Like…

And now people in western culture are like, “Hey! clothing can be double-breasted suit and tie!”

Sometimes We Look At Bizarre Catwalk Fashions Like…

And avant-garde designer are like, “Hey! clothing can be… whatever the fuck this thing is!”

Sometimes We Look At Bizarre Catwalk Fashions Like…

And honestly, when it comes down to it, that’s not any weirder than the stereotyped shape of the double-breasted suit and tie, or the pointy shoes you trip over, or the skirt made of grass. Human bodies are weird, and the things we wear on our bodies are also weird. It all just comes down to what you’re used to seeing.

5 years ago
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Strength training will change your life. If you want to lose weight, gain muscle, and/or just look and feel better, strength training will do just that.

Online look for the best feiyue shoes on: http://www.icnbuys.com/feiyue-shoes .

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bojorina but in tips

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