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Computes the position, brightness, and other observable characteristics of celestial bodies, as well as the circumstances of astronomical phenomena. Includes information on calendars and related topics.

URLs from aa.usno.navy.mil:

URL: http://aa.usno.navy.mil/ URL: http://aa.usno.navy.mil/faq/docs/moon_phases.php
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URL: http://aa.usno.navy.mil/faq/docs/easter.php
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URL: http://aa.usno.navy.mil/faq/docs/world_tzones.php
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URL: http://aa.usno.navy.mil/data/docs/Venus2004.pdf
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URL: http://aa.usno.navy.mil URL: http://aa.usno.navy.mil/data/docs/RS_OneDay.php URL: http://aa.usno.navy.mil/cgi-bin/aa_pap.pl URL: http://aa.usno.navy.mil/cgi-bin/aa_rstablew.pl
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URL: http://aa.usno.navy.mil/data/docs/AltAz.php URL: http://aa.usno.navy.mil/data/docs/EarthSeasons.php URL: http://aa.usno.navy.mil/faq/docs/moon_phases URL: http://aa.usno.navy.mil/index.php
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URL: http://aa.usno.navy.mil/data/
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URL: http://aa.usno.navy.mil/data/docs/RS_OneYear.php URL: http://aa.usno.navy.mil/faq/docs/daylight_time.php
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Tweets about aa.usno.navy.mil

  • RT @WGGBWeather: Starting today - sunsets start getting later! Yay! Today's sunset is at 4:19 PM. Yesterday it was 4:18 PM.
  • FYI, our earliest sunsets are this week; we'll be lighter longer, BUT the sun rises later until early January.
  • Starting today - sunsets start getting later! Yay! Today's sunset is at 4:19 PM. Yesterday it was 4:18 PM.
  • Today, 8 a.m. EST, was JD 2457000! what an important date for a pythagorean! (thanks @HughO2)
  • @larry_rubinow here's the U.S. Naval Observatory chart. You can look up daylight length for your own location.
  • The sun is just coming up. November 2 cannot come fast enough.
  • @ocasio_vilma Hoy es Cuarto Menguante.
  • Did you miss the Total Lunar Eclipse? Next one is on April 4, 2015
  • What the Moon looks like now -
  • If you missed lunar eclipse this am, don't miss full moon tonight, waning until Oct. 23
  • We are now moving directly between the sun and the moon. You can see it. Totality in 1 hour (for 1hr) #LunarEclipse
  • RT @ChadMiraKOLR: Find out the best time for your location to see the "blood moon" this morning. @kolr10kozl
  • @gravitybydesign ahah, sorry to scare you. This link should help out.
  • Find out the best time for your location to see the "blood moon" this morning. @kolr10kozl
  • #Austin, #Texas if you want to watch the #eclipse
  • Full eclipse visible in North America Wed morning. Enter your location and find out exactly when: #LunarEclipse
  • for woodland cA
  • RT @Whither_Arcadia: exact times to see the lunar eclipse for our town, type it in to form A @LiamSobel @eightbit11…
  • exact times to see the lunar eclipse for our town, type it in to form A @LiamSobel @eightbit1147 @Mkoopajr @ben_fox3
  • in case anyone else is interested :) (via 💋🌒
  • P.s. the U.S. Naval Observatory has a super-handy calculator to figure out when to look for the eclipse!
  • Timing for tonight/tomorrow morning's lunar eclipse, wherever you are. #lookup #WhoNeedsSleepAnyways
  • @Brent_McBride better link.
  • Blood moon tonight in Memphis. 524am is peak. #imgettinguptooseeit
  • Know when to wake up and watch the lunar eclipse in Anchorage? Here's the calculation. You're welcome. #eclipse
  • RT @ktvaweather: #Alaska #eclipse Here is a handy calculator to help you know when to see tonight's lunar eclipse. ~Brett
  • #Alaska #eclipse Here is a handy calculator to help you know when to see tonight's lunar eclipse. ~Brett
  • #Alaska #eclipse If you are hoping to catch the lunar eclipse tonight here is a handy calculator to let you know...
  • RT @AngWxGrl: Total lunar eclipse early Weds (Oct. 8). "Blood Moon" peaks in #STL around 6am. Specific viewing times
  • RT @AngWxGrl: Total lunar eclipse early Wednesday (Oct. 8). "Blood Moon" peaks in #STL around 6am. Link for specific viewing times
  • Total lunar eclipse early Wednesday (Oct. 8). "Blood Moon" peaks in #STL around 6am. Link for specific viewing times
  • Handy form to calculate what time to view the #BloodMoon (full moon/total lunar eclipse) late tonight-early morning:
  • Enter ur location & the calculator will give specific "look times" for the blood moon eclipse
  • RT @dianaenlinea: Lunar eclipse calculator! Know when to go outside & look up tonight:
  • The U.S. Naval Observatory has a calculator that allows you to see when the #LunarEclipse will happen in your area:
  • Lunar eclipse calculator! Know when to go outside & look up tonight:
  • Supermoon rises tonight and crests tomorrow, waning until Oct 8.
  • @3HL1045 I get depressed w/o DST, but, in late Dec-Jan sun wud nt come up till almost 8am. Kids bus stop/rush hour
  • @_SimonR91 @_Simon its really quite simple as outside you have one light, while you cant move it you can predict it
  • @pluto4me no set time. sometimes on a graphic. here is a link for you.
  • @SuperProPR Aqui puede obtener la info seleccionando el dia: Linda tarde
  • @SuperProPR aqui:
  • Cómo se verá la Luna esta noche?
  • Sun or Moon Altitude/Azimuth Table - U.S. Naval Observatory instructions here: https://t.co/xUOXM8eypn
  • Why the summer solstice is *not* also the date of the latest sunset:
  • What the Moon looks like now.
  • What the #Moon looks like now
  • Full moon rises tonight and crests daytime tomorrow, waning until July 26. It was already spectacular last night!