ALMA observes a giant sunspot (3 millimetres)

This ALMA image of an enormous sunspot was taken at a wavelength of 3 millimetres. Sunspots are transient features that occur in regions where the Sun’s magnetic field is extremely concentrated and powerful. They have lower temperatures than their surrounding regions, which is why they appear relatively dark.

These observations are the first ever made of the Sun with a facility where ESO is a partner. They are an important expansion of the range of observations that can be used to probe the mysterious physics of our nearest star.

Autorska prava:

ALMA (ESO/NAOJ/NRAO)

O slici

Id:eso1703b
Tip:Planetarni
Datum objavljivanja:17. januar 2017. 15:00
Povezana saopštenja:eso1703
Veličina:2100 x 2100 px

O objektu

Naziv:Sun, Sun spot
Tip:Solar System : Star : Feature : Photosphere : Sunspot
Kategorija:Solar System

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Boje i flteri

OpsegTalasna dužinaTeleskop
Milimetar3.0 mmAtacama Large Millimeter/submillimeter Array
Band 3