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neiltyson's profile
Neil deGrasse Tyson
Neil deGrasse Tyson
Neil deGrasse Tyson
Verified account
@neiltyson

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Neil deGrasse TysonVerified account

@neiltyson

Astrophysicist

New York City
haydenplanetarium.org/tyson/
Joined January 2009

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    Neil deGrasse Tyson‏Verified account @neiltyson Jun 21

    Happy June Solstice to all residents of planet Earth: Longest day of the year for north of the equator. Shortest for south of the equator. And for Equatorians, same old boring 12-hour day, just like every other day of the year.

    9:37 AM - 21 Jun 2018
    • 16,465 Retweets
    • 72,253 Likes
    • chug rug The UX Mustache Larry Bolinger oskar nilsson (((Zoe Strauss))) JR Welborn Neil McAlpine Shahreen Zaman Carol0702
    730 replies 16,465 retweets 72,253 likes
      1. New conversation
      2. Wonder of Science‏ @wonderofscience Jun 21
        Replying to @neiltyson

        A comparison of Winter and Summer Solstice.pic.twitter.com/Dai8ICoG1F

        8 replies 181 retweets 786 likes
      3. fireguy2035‏ @GreatForest111 Jun 21
        Replying to @wonderofscience @neiltyson

        people in Greenland have sunlight for 24 hours?

        13 replies 1 retweet 120 likes
      4. Wonder of Science‏ @wonderofscience Jun 21
        Replying to @GreatForest111 @neiltyson

        Wonder of Science Retweeted Wonder of Science

        Yeshttps://twitter.com/scienconomy/status/967694945397035008 …

        Wonder of Science added,

        Wonder of Science @wonderofscience
        Endless Day. At the height of summer in the Arctic Circle the Sun never sets. pic.twitter.com/fk94bmST3l
        4 replies 40 retweets 386 likes
      5. 3 more replies
      1. New conversation
      2. Jarrett Bellini‏Verified account @JarrettBellini Jun 21
        Replying to @neiltyson

        "Suck it, Neil." - Ecuador

        6 replies 24 retweets 181 likes
      3. Libni Garcia‏ @gizmolibni Jun 21
        Replying to @JarrettBellini @neiltyson

        😂 He said Equatorian as in equator. Not Ecuadorian, as in Ecuador.

        4 replies 3 retweets 83 likes
      4. Fernando De Sucre‏ @FerDeSucre Jun 22
        Replying to @gizmolibni @JarrettBellini @neiltyson

        Can’t get more Equatorial than an Ecuadorian!

        0 replies 2 retweets 24 likes
      5. End of conversation
      1. New conversation
      2. Jason Lang‏ @pi2infinity Jun 21
        Replying to @neiltyson

        ...wait, sir, isn’t it only 12 hours on the Tropic of Cancer today? Isn’t it only 12 hours on the equator around the equinoxen? Isn’t it only 12 hours on the other tropic around the other solstice (when there will be less than 12 hours on the northern tropic)? Because sphere?

        1 reply 0 retweets 4 likes
      3. Stephen Terhaar‏ @TerhaarStephen Jun 23
        Replying to @pi2infinity @neiltyson

        The equator always has 12 hours of daylight yearround -see graph:pic.twitter.com/LLODLI2oZM

        1 reply 1 retweet 13 likes
      4. Jason Lang‏ @pi2infinity Jun 24
        Replying to @TerhaarStephen @neiltyson

        During the June solstice, the sun appears perfectly overhead above the Tropic of Cancer, meaning the sun isn’t perfectly over the equator— it’s offset toward the horizon by over 20°! Doesn’t this model erroneously assume that the sun appears overhead above the equator every day?

        2 replies 0 retweets 2 likes
      5. Neil deGrasse Tyson‏Verified account @neiltyson Jun 24
        Replying to @pi2infinity @TerhaarStephen

        Good Graph. Add to it: The overhead noon-Sun shifts through the year from the Tropic of Capricorn in the South (December Solstice), across the equator (Equinox) to the Tropic of Cancer (June Solstice) in the North, and back again.

        2 replies 11 retweets 27 likes
      6. Jeff Swaim‏ @jeffreyswaim Jun 24
        Replying to @neiltyson @pi2infinity @TerhaarStephen

        It’s always 12h on the equator (or there abouts) because as a great circle, the equator always shows half of its circumstance towards the sun, regardless of time of year/angle between axis of rotation and the ecliptic. https://en.wikipedia.org/wiki/Daytime 

        1 reply 0 retweets 1 like
      7. Jason Lang‏ @pi2infinity Jun 24
        Replying to @jeffreyswaim @neiltyson @TerhaarStephen

        Aaah, great circles strike again! I needed to have my attention turned to how great circles always show half of their circ.; I can now see the error of my thinking (Earth’s terminator’s plane wasn’t cutting the equator perfectly in half in my head. Updating my understanding now!)

        1 reply 0 retweets 2 likes
      8. Jeff Swaim‏ @jeffreyswaim Jun 24
        Replying to @pi2infinity @neiltyson @TerhaarStephen

        #GreatCirclesArePrettyGreatpic.twitter.com/dQ9RYELCkj

        2 replies 4 retweets 58 likes
      9. 1 more reply
      1. New conversation
      2. Reed‏ @ReedOsrs Jun 21
        Replying to @ForeverFlatErth @neiltyson

        Delusion

        1 reply 1 retweet 136 likes
      3. Tweet unavailable
      4. Reed‏ @ReedOsrs Jun 21
        Replying to @ForeverFlatErth @neiltyson

        It's incredible

        2 replies 0 retweets 123 likes
      5. Reed‏ @ReedOsrs Jun 21
        Replying to @ReedOsrs @ForeverFlatErth @neiltyson

        Please tell me about the private accounts you use to favorite your own tweets

        2 replies 0 retweets 232 likes
      6. Tweet unavailable
      7. Ronnie‏ @jetblast37 Jun 21
        Replying to @ForeverFlatErth @ReedOsrs @neiltyson

        Paranoid much? NASA has only existed for 59 yrs and is a US agency, which means it represents less than 4.5% of the world population. People proposed the Earth was round over 2500 years ago and confirmed it using critical thinking, careful observations, and precise calculations.

        4 replies 0 retweets 38 likes
      8. 8 more replies

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