The European Space Agency reported that the James Webb Space Telescope has captured infrared images of NGC 7129, a stellar nursery located 3300 light-years from Earth.
Peering Through Cosmic Dust
The NASA/ESA/CSA James Webb Space Telescope used its infrared capabilities to unveil numerous stars hidden by dense clouds of dust in NGC 7129. Infrared light pierces through dense matter that typically absorbs or scatters other types of light.
According to the European Space Agency, this region contains stellar objects in various developmental stages, offering an opportunity to explore how stars shape their surroundings.
The Central Star and Cavity
The region's most massive star, LkH(alpha) 234, weighs approximately 5 to 8 times our Sun and features the image's most prominent diffraction pattern. Pre-main-sequence stars like this one have mostly finished gathering mass and are contracting under gravity.
A gold-appearing cavity to its left spans roughly 3.5 light-years and demonstrates the impact of stellar outflows from an earlier life cycle stage. These outflows and the star's light energize the hydrogen gas, causing it to glow while compressing a large amount to form conditions for new stars.
Protostars and Chaotic Red Matter
To the right of the central star, a clumpy, red-appearing region conceals much younger objects known as protostars. As these protostars accumulate mass, they eject superheated material outflows that interact with surrounding gray matter to create shocks.
Multiple outflows from multiple stars overlap from our point of view, leading to the chaotic appearance of the region.
Key facts and where they come from
- The James Webb Space Telescope uncovered stars hidden by dust in NGC 7129, located 3300 light-years from Earth.
NASA/ESA/CSA James Webb Space Telescope has unveiled numerous stars formerly hidden by clouds of dust in a stellar nursery known as NGC 7129
- The central luminous star, LkH(alpha) 234, weighs around 5 to 8 times the Sun.
The most massive (and the most mature) is the region’s luminous central star, LkH(alpha) 234.
- The gold cavity to the left of the central star spans approximately 3.5 light-years.
The cavity to its left, which appears in gold and spans about 3.5 light-years, is the largest demonstration of the central star’s impact.