ALMA observes the full solar disc

A map of the whole disc of the Sun was also made with a single ALMA antenna, using a technique called fast-scanning, at a wavelength of 1.25 millimetres. The accuracy and speed of observing with a single ALMA antenna make it possible to produce a map of the entire solar disc in just a few minutes. These maps show the distribution of temperatures in the chromosphere over the whole disc at low spatial resolution and therefore complement the detailed interferometric images of individual regions of interest.

Credit:

ALMA (ESO/NAOJ/NRAO)

About the Image

Id:eso1703c
Type:Planetary
Release date:17 January 2017, 15:00
Related releases:eso1703
Size:1772 x 1772 px

About the Object

Name:Sun
Type:Solar System : Star : Feature : Photosphere
Category:Solar System

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Colours & filters

BandWavelengthTelescope
Millimeter1.25 mmAtacama Large Millimeter/submillimeter Array
Band 6

 

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