NGC 411 is considered to be an open globular cluster of stars located in the Small Magellanic Cloud that is a small galaxy in the neighborhood.
The stars present in the globular cluster are nearly the age of the Sun.
NASA has posted the picture of NGC 411. This picture is a composite image and has been produced from ultraviolet, visible and infrared observations by Hubble’s Wide Field Camera 3. This filter helps the astronomers to take images slightly beyond the red and the violet ends of the spectrum.
This image shows a variety of colors and brightness in the stars. These features are helpful in estimating the mass, temperature and evolutionary phase of the stars as for example blue color shows the stars having higher surface temperatures than the red ones.
Can you tell whether hotter stars are more in the image or less hot stars?