April 26, 2024

Astronomy & Astrophysics 101: Nebula

This Hubble image provides the most detailed view of the entire Crab Nebula ever. The Crab is amongst the most well-studied and fascinating items in astronomy. This image is the largest image ever taken with Hubbles WFPC2 electronic camera. It was put together from 24 specific direct exposures taken with the NASA/ESA Hubble Space Telescope and is the greatest resolution image of the whole Crab Nebula ever made. Credit: NASA, ESA, and Allison Loll/Jeff Hester (Arizona State University). Recommendation: Davide De Martin (ESA/Hubble).
What Is a Nebula?
Nebulae are interstellar clouds of gas and dust. Many nebulae are formed from the remnants of passing away stars. Nebulae are frequently likewise regions where new stars are born.
These days, the term nebula refers to an interstellar cloud of dust and gas. Nebulae are frequently formed from the remnants of dying stars: from planetary nebulae or the dispersed particles from supernova surges.
A few of the most popular images captured by the Hubble Space Telescope have actually been of lovely and vibrant nebulae. You can explore the large ESA/Hubble archive of hundreds of nebula images here. This consists of the popular pictures of the Lagoon Nebula (Hubbles 28th-anniversary image), NGC 2014 and NGC 2020 (the 30th-anniversary image), the Pillars of Creation, the Crab Nebula, and more.

One of the most comprehensive images of a star-forming area ever made is the big mosaic of 15 Hubble images showing the central part of the Orion Nebula complex. Using Hubble, astronomers have also caught an uncommon look of the nebula Hen 3-1357, nicknamed the Stingray Nebula, fading precipitously over simply the previous two decades. Images recorded by Hubble in 2016, when compared to Hubble images taken in 1996, revealed a nebula that has actually drastically dimmed in brightness and altered shape.

A planetary nebula is a region of cosmic gas and dust formed from the cast-off outer layers of a dying star. Regardless of their name, planetary nebulae have absolutely nothing to do with planets. Credit: ESA/Hubble (M. Kornmesser).
One of the most detailed images of a star-forming area ever made is the big mosaic of 15 Hubble images revealing the central part of the Orion Nebula complex. Hubbles high resolution has been vital in the investigation of the dust discs, called proplyds, around the newborn stars in this nebula.
Hubbles Wide Field Camera 3 (WFC3) instrument is developed to make in-depth images in both visible and infrared light, and offers significantly enhanced capabilities in the infrared. This enables Hubble to peer through the dust and gas of nebulae and observe the newborn stars. Dust clouds spread visible light, but let infrared light through unimpeded, indicating infrared observations are often the only way to plainly see the full extent of the star formation in the region.
Credit: ESA/Hubble, NASA, ESA and Allison Loll/Jeff Hester (Arizona State University), Acknowledgment: Davide De Martin (ESA/Hubble).
Using Hubble, astronomers have actually likewise caught an uncommon glance of the nebula Hen 3-1357, nicknamed the Stingray Nebula, fading precipitously over just the previous two decades. Images captured by Hubble in 2016, when compared to Hubble images taken in 1996, revealed a nebula that has actually dramatically dimmed in brightness and altered shape.

It was put together from 24 individual exposures taken with the NASA/ESA Hubble Space Telescope and is the greatest resolution image of the whole Crab Nebula ever made. This consists of the popular images of the Lagoon Nebula (Hubbles 28th-anniversary image), NGC 2014 and NGC 2020 (the 30th-anniversary image), the Pillars of Creation, the Crab Nebula, and more.