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   What is the bright stars calculator?

   • Our Bright Stars Calculator tells you all about the visible stars in the night sky—tonight or a date in the future—all customized to the location that you select! We cover every day from 1970 through 2036. The magnitude of the star, i.e., its brightness! Most visible stars will rise and set in the night sky, just as the full Moon or the planets do.

   Bright Stars in the Sky Tonight: Rise, Set, and Transit Times

   www.almanac.com/astronomy/bright-stars

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   How is the brightness of a star measured?

   • The measured brightness allows astronomers to calculate a number of important parameters, including the temperature of a star’s surface, the distance of a star or the age of a star. The brightness of a star is measured several ways: how it appears from Earth, how bright it would appear from a standard distance and how much energy it emits.

   What Astronomical Instrument Measures the Brightness of Stars?

   sciencebriefss.com/physics/what-astronomical-instrument-measures-the-brightness-of-stars/

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   How do you know if a star is bright?

   • Brightness is measured in magnitudes (the smaller the magnitude the brighter the star). This is how bright it looks to your eye. On a dark night in a remote area we can see with the naked eye stars of 6th magnitude or brighter. In a city, we can see stars of 1st, 2nd or 3rd magnitude or brighter.

   Imagine the Universe!

   imagine.gsfc.nasa.gov/ask_astro/stars.html

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   How do you find the apparent magnitude of a star?

   • Apparent magnitude D = 10 parsecs -26.83 Compute the ratios R/R☉ = 2.5 and T/T☉ = 9,602/5,778 = 1.66. Raise the first ratio to the power of two, the second to the power of 4, and multiply them: (R/R☉)2 · (T/T☉)4 = 2.52 · 1.664 = 47.67 L☉. The luminosity calculator finds a star's luminosity, absolute magnitude, and apparent magnitude.

   Luminosity Calculator

   www.omnicalculator.com/physics/luminosity

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2. www.almanac.com › astronomy › bright-starsBright Stars in the Sky Tonight: Rise, Set, and Transit Times

   www.almanac.com › astronomy › bright-stars

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   What is that bright star in the sky tonight? Our Bright Stars Calculator tells you all about the visible stars in the night sky—tonight or a date in the future—all customized to the location that you select!

   • Alaska

     Alaska - Bright Stars in the Sky Tonight: Rise, Set, and...

   • Ohio

     Ohio - Bright Stars in the Sky Tonight: Rise, Set, and...

   • Indiana

     Indiana - Bright Stars in the Sky Tonight: Rise, Set, and...

   • Delaware

     Delaware - Bright Stars in the Sky Tonight: Rise, Set, and...

   • Nevada

     Nevada - Bright Stars in the Sky Tonight: Rise, Set, and...

   • Tennessee

     Weather Weather sub-navigation. 5-Day Forecast; Long-Range...

   • Pennsylvania

     Pennsylvania - Bright Stars in the Sky Tonight: Rise, Set,...

   • Michigan

     Michigan - Bright Stars in the Sky Tonight: Rise, Set, and...

3. skyandtelescope.org › observing › interactive-sky-Interactive Sky Chart | Map Your Night Sky - Sky & Telescope

   skyandtelescope.org › observing › interactive-sky-

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   • What Is The Interactive Sky Chart?
   • How Do I Use The Interactive Sky Chart to Explore The Night Sky?
   • Want to Learn More?

   Powered by Heavens Above, our interactive viewer charts the night sky as seen by eye. The map includes the Moon, stars brighter than magnitude 5, the five bright planets (Mercury, Venus, Mars, Jupiter, and Saturn), and deep-sky objects that can be seen without the use of optical aid.

   See full list on skyandtelescope.org

   Learn sky chart basics in our short tutorial: The interactive sky chart offers a lot in the way of customizing what you want to see. Chart the stars and planets visible to the unaided eye from any location, at any time of day or night, on any date between the years 1600 to 2400 by entering your location, either via zip code, city, or latitude/longi...

   See full list on skyandtelescope.org

   Like what you see here? You'll get an even bigger, accurately mapped sky chart, along with oodles of stargazing information, in the pages of Sky & Telescopemagazine.

   See full list on skyandtelescope.org

4. Videos

   • 

     1:32

     space.com

     Brightest Stars: Luminosity & Magnitude

     11 Oct 2017

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     24:59

     youtube.com

     how we determine a star's true brightness

     7 Mar 2021

     3.9K views

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     11:16

     youtube.com

     Star Magnitude (Brightness) Explained

     5 Feb 2021

     41.9K views

   View all

5. www.timeanddate.com › astronomy › nightNight Sky Map & Planets Visible Tonight - timeanddate.com

   www.timeanddate.com › astronomy › night

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   Sky map showing the night sky tonight from any location. What planets are visible tonight? Where is Mars, Saturn or Venus? What is the bright star in the sky?

6. www.omnicalculator.com › physics › luminosityLuminosity Calculator

   www.omnicalculator.com › physics › luminosity

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   Jul 1, 2024 · This luminosity calculator is a handy tool that allows you to calculate the energy emitted by stars and how bright they appear when seen from Earth. Thanks to this calculator, you will also be able to determine the absolute and apparent magnitudes of stars.

7. skyandtelescope.org › observing › interactive-skyAstronomical Almanac | Find Out What Planets Are Visible ...

   skyandtelescope.org › observing › interactive-sky

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   Sep 15, 2017 · Find out what planets are visible tonight, the brightest planet in the sky right now, and the best times to observe with our interactive astronomical almanac.

8. www.almanac.com › astronomy › planets-rise-and-setPlanets Visible Tonight - The Old Farmer's Almanac

   www.almanac.com › astronomy › planets-rise-and-set

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   Our Visible Planets Calculator displays the rise and set times of the planets each night, their location in the sky, and how illuminated they will be. More Astronomy Tools: Sunrise and Sunset Calculator. Moonrise and Moonset Calculator. Bright Stars Calculator.

9. stellarium-web.orgStellarium Web Online Star Map

   stellarium-web.org

   3 days ago · Stellarium Web is a planetarium running in your web browser. It shows a realistic star map, just like what you see with the naked eye, binoculars or a telescope.