top of page
Search

Superb view of Neptune's rings by JWST


On Sept. 21, 2022, the James Webb Space Telescope delivered the clearest view of Neptune’s rings in more than 30 years. Webb’s Near-Infrared Camera (NIRCam) captured several bright, narrow rings as well as the planet’s fainter dust bands. Voyager 2 was the last to detect some of these rings during its flyby in 1989, but this is the first time we have an infrared image of them.

Since NIRCam images objects in the near-infrared range from 0.6 to 5 microns, Neptune does not appear blue to Webb. In fact, the methane gas so strongly absorbs red and infrared light that the planet is quite dark at these near-infrared wavelengths, except where high-altitude clouds are present. Those methane-ice clouds are prominent as bright streaks and spots, which reflect sunlight before it is absorbed by methane gas.

26 views0 comments

Recent Posts

See All

CAS Society Meeting April 2024

Hello all! Our regular meetings take place on the last Wednesday of every month. The next meeting will take place on Wednesday, 24th of April, 2024, at 19:30. The meeting is held at Burley hall, Wave

The 2024 Total Solar Eclipse

Hello all! A spectical of the skies! a rare occurance! We don't often get a Solar Eclipse, especially a total one, in fact 1999 was the last total solar eclipse in the UK. Luckily or not so, there

Spring!

Happy spring equinox everyone! Spring is finally here! And although that does mean shorter nights, it does spell warmer weather! Luckily even with these shorter nights we can still see a great deal of

Comentários


bottom of page