Web Results

Hertzsprung–Russell diagram - Wikipedia


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


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 ...

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  ...

The H-R Diagram - SkyServer - SDSS


Find stars in the Sloan Digital Sky Survey's database of 13 million objects. Follow in the footsteps of famous astronomers as you learn how stars live and die.

HR Diagram - Jim Kaler


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 ...

The H-R Diagram - Introduction - SkyServer - SDSS


To make an H-R diagram, you must look at many stars. But for each star, you need to measure only two quantities: luminosity and temperature. You can't directly ...

H-R Diagram - Las Cumbres Observatory Global Telescope Network


The most surprising thing about the H-R diagram was that the stars were not randomly scattered on it, but clustered in certain regions and along certain lines.

H-R Diagram


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 – Student Guide


NAAP – HR Diagram Explorer 2/9. Question 3: The mass luminosity relation. 3.5. L M. ∝ describes the mathematical relationship between luminosity and mass ...

Hertzsprung-Russell Diagram Explorer - UNL Astronomy


Interactives · Video · Mobile · Downloads · Local · More · Contact · Home › NAAP Labs › Hertzsprung-Russell Diagram › Hertzsprung-Russell Diagram Explorer ...

More Info

Classifying Stars - The Hertzsprung -Russell Diagram


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 ...

HR Diagram


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 ...

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


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 ...