ALMA and Hubble observe LL Pegasi

This image is a composite of images made with the NASA/ESA Hubble Space Telescope and the Atacama Large Millimeter/submillimeter Array (ALMA), both observing the binary star system LL Pegasi. The old star LL Pegasi is continuously losing gaseous material as it evolves into a planetary nebula, and the distinct spiral shape is the imprint made by the stars orbiting in this gas.

The Hubble image can be seen here, the ALMA image here.

Links:

Credit:

ALMA (ESO/NAOJ/NRAO)/H. Kim et al., ESA/NASA & R. Sahai

About the Image

Id:potw1710b
Type:Observation
Release date:6 March 2017, 06:00
Size:996 x 996 px

About the Object

Name:LL Pegasi
Type:Milky Way : Star : Grouping : Binary
Constellation:Pegasus
Category:Stars

Image Formats

Large JPEG
236.5 KB
Screensize JPEG
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Coordinates

Position (RA):23 19 12.61
Position (Dec):17° 11' 33.07"
Field of view:0.32 x 0.32 arcminutes
Orientation:North is 0.0° left of vertical

Colours & filters

BandWavelengthTelescope
Optical
V
606 nmHubble Space Telescope
ACS
Radio
13CO
Atacama Large Millimeter/submillimeter Array
Band 6

 

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