The Hertzsprung–Russell diagram, abbreviated H–R diagram or HRD, is a
scatter graph of stars showing the relationship between the stars' absolute
magnitudes or luminosities versus th...
Jul 30, 2006 ... The diagram was created circa 1910 by Ejnar Hertzsprung and Henry Norris
Russell, and represented a huge leap forward in understanding ...
In an H-R diagram the luminosity or energy output of a star is plotted on the ... in
the magnitude of a star when measured through two different coloured filters. ...
we will explore some of their characteristics and the sources of energy in the
If we have a look at the two examples below the first shows two quantities, X and
... the greater their mass but as with many other characteristics of humans there is
a ... It originated in 1911 when the Danish astronomer, Ejnar Hertzsprung, plotted
the ... Other major groups of stars found on the H-R diagram are the giants and ...
During roughly the same time period, two astronomers created similar plots ... In
a true HR diagram, you would plot the effective temperature of a star on the ...
Question 2. Stars with surface temperatures between 5000 and 6000 K (Kelvin)
appear .... The two properties of a star that are plotted on an H-R diagram are.
These diagrams, called the Hertzsprung-Russell or HR diagrams, plot luminosity
in solar units ... A plot of the nearest stars on the HR diagram is shown below: ...
The two quantities that get plotted in an HR diagram are LUMINOSITY (y-axis)
and ... The upper left corner of an HR diagram includes the hot, bright, blue stars.
Stars. • Classifying stars: HR diagram. • Luminosity, radius, and temperature ...
Using these two characteristics has proved ... If we plot lots of stars on the HR.
Using these two characteristics has proved extraordinarily effective in
understanding the ... If we plot lots of stars on the HR diagram, they fall into