Web Results

Hertzsprung–Russell diagram - Wikipedia

en.wikipedia.org/wiki/Hertzsprung–Russell_diagram

An HR diagram showing many well known stars in the Milky Way galaxy. HR diagrams for two open clusters, M67 and NGC 188, showing the main-sequence turn-off at different ages. The Hertzsprung–R...

Introduction to the Hertzsprung-Russell Diagram

www.atnf.csiro.au/outreach/education/senior/astrophysics/stellarevolution_hrintro.html

One of the most useful and powerful plots in astrophysics is the Hertzsprung- Russell diagram (hereafter called the H-R diagram). It originated in 1911 when the ...

Classifying Stars - The Hertzsprung -Russell Diagram

www.atnf.csiro.au/outreach/education/senior/cosmicengine/stars_hrdiagram.html

These can be plotted to form what is one of the most useful plots for stellar astronomy, the Hertzsprung-Russell (or H-R) diagram. It is named after the Danish ...

The Hertzsprung-Russell Diagram - UNL Astronomy

astro.unl.edu/naap/hr/hr_background3.html

That was not the case however, for the Hertzsprung-Russell diagram. A significant tool to aid in the understanding of stellar evolution, the H-R diagram was ...

Hertzsprung-Russell Diagram | COSMOS

astronomy.swin.edu.au/cosmos/H/Hertzsprung-Russell Diagram

The Hertzsprung-Russell diagram (HR diagram) is one of the most important tools in the study of stellar evolution. Developed independently in the early 1900s  ...

H-R Diagram

astrosun2.astro.cornell.edu/academics/courses/astro201/hr_diagram.htm

The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and ...

HR Diagram

abyss.uoregon.edu/~js/ast122/lectures/lec11.html

These diagrams, called the Hertzsprung-Russell or HR diagrams, plot luminosity in solar units on the Y axis and stellar temperature on the X axis, as shown ...

H-R Diagram Gizmo : ExploreLearning

www.explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=429

A collection of stars visible from Earth can be arranged and classified based on their color, temperature, luminosity, radius, and mass. This can be done using ...

An H-R Diagram of the Brightest Stars - SkyServer - SDSS

skyserver.sdss.org/dr1/en/proj/advanced/hr/simplehr.asp

Once you know the luminosity and temperature (or color) of a star, you can plot the star as a point on the H-R diagram. Plot the luminosity on the y-axis with ...

HR Diagram - Jim Kaler

stars.astro.illinois.edu/sow/hrd.html

The classical HR diagram, first constructed in 1914 by Henry Norris Russell (to which was added the work of Ejnar Hertzsprung), is a plot of absolute visual ...