Measuring the Mass of a Single Star
In the image at top, left, astronomers discovered a subtle brightening of a star [located within the box] due to the effect of gravitational microlensing. This phenomenon occurs when a foreground star, in this case a dim red star, passes in front of a much more distant star and amplifies its light. Astronomers were engaged in a large-scale search for microlensing events in the halo of our Milky Way galaxy. They were looking in the direction of the Large Magellanic Cloud, a satellite galaxy of our Milky Way. The image was taken in February 1993 with the 50-inch telescope at the Mount Stromlo Observatory in Australia. The box represents the field of view of NASA/ESA Hubble Space Telescope.
About the Image
|Release date:||14 April 2004, 19:00|
|Size:||3000 x 2400 px|
About the Object
|Type:||• Milky Way : Star|
• Milky Way : Cosmology : Phenomenon : Lensing
• Local Universe : Star
Colours & filters
|606 nm||Hubble Space Telescope|
|814 nm||Hubble Space Telescope|
Notes: This image was captured with the 50-inch telescope at the Mount Stromlo Observatory.