The term circumstellar habitable zone (CHZ) is used to describe a ring sized shape of the best places for the survival of life in a system.    From Wordnik.com.  [CreationWiki - Recent changes [en]]

Huge amounts of matter and energy are dispelled into what is known as the circumstellar environment.    From Wordnik.com.  [Signs of the Times] Reference

The star is so young that it still has a so-called circumstellar disk of dust and gas around it, from which planets are being formed.    From Wordnik.com.  [Christian Science Monitor | All Stories] Reference

The effect of a circumstellar dust cloud could be a possible explanation.    From Wordnik.com.  [Red Giant Brightness Variations Still Mysterious | Universe Today] Reference

For example, there is a circumstellar habitable zone in which it is possible to have life.    From Wordnik.com.  ["Intro to ID" by Gonzalez at U of Northern Iowa - The Panda's Thumb] Reference

The most likely source is circumstellar discs – embryonic solar systems around young stars.    From Wordnik.com.  [Hints of More Extra-Galactic Planets | Universe Today] Reference

And who would not pause to consider “circumstellar” or “Clactonian,” in the adjacent column?.    From Wordnik.com.  [Spelling Counts « Exile on Ninth Street] Reference

Because the giant secondary is losing mass, the system is likely to have a large amount of circumstellar material.    From Wordnik.com.  [Unprecedented Eruption Catches Astronomers By Surprise | Universe Today] Reference

In itself, this is very exciting because nearly half of T Tauri stars have circumstellar disks or protoplanetary discs.    From Wordnik.com.  [Capture A FUor! | Universe Today] Reference

A cloud of circumstellar dust that obscures the light from the star once per orbit would dim its light enough to explain the phenomenon.    From Wordnik.com.  [Red Giant Brightness Variations Still Mysterious | Universe Today] Reference

Starting from 1965, more than 140 molecular species have been detected in space, in interstellar clouds as well as in circumstellar envelopes.    From Wordnik.com.  [New Organic Molecule Discovered in Space] Reference

They conclude the most likely explanation for the 2-5 micron excess is the light from circumstellar disks, or young solar systems, forming around massive young stars.    From Wordnik.com.  [Hints of More Extra-Galactic Planets | Universe Today] Reference

What would its circumstellar disk reveal about how this massive star was born?.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

Infrared image of circumstellar disk illuminates massive star formation process.    From Wordnik.com.  [Daily News & Analysis] Reference

While a single star has only one circumstellar disk, a binary has three types of disks.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

For the past 18 years, only one white dwarf with a circumstellar dust disk was known to exist.    From Wordnik.com.  [SpaceRef Top Stories] Reference

Astronomers call this thick, solar system-sized pancake of gas and dust the "circumstellar disk.".    From Wordnik.com.  [Space Business and Industry News at SpaceMart.com] Reference

The source appears to be an early-type star with a circumstellar dust shell typical of protostars.    From Wordnik.com.  [Universe Today] Reference

It seems that larger gas planets - like Jupiter and Saturn in our own system - form first in the circumstellar disk.    From Wordnik.com.  [Christian Science Monitor | All Stories] Reference

The interaction of the stellar debris with this circumstellar environment creates a system called a supernova remnant.    From Wordnik.com.  [Signs of the Times] Reference

A violent encounter is underway between the fastest-moving debris and the circumstellar ring: shocks excite "hotspots.".    From Wordnik.com.  [SpaceRef Top Stories] Reference

A violent encounter is underway between the fastest - moving debris and the circumstellar ring: shocks excite "hotspots.".    From Wordnik.com.  [SpaceRef Top Stories] Reference

The planet may have formed at its location in a primordial circumstellar disk by gravitationally sweeping up remaining gas.    From Wordnik.com.  [RichardDawkins.net : The Latest Updates] Reference

Currently, only five confirmed debris disks have detected circumstellar gas, studied primarily through UV absorption spectroscopy.    From Wordnik.com.  [SpaceRef Top Stories] Reference

Numerous computer simulations show that circumstellar disks will be gravitationally modified by the tug of one or more unseen planets.    From Wordnik.com.  [RichardDawkins.net : The Latest Updates] Reference

These "pearls" of circumstellar material are made up of material that was emitted before the star exploded, as it was preparing to die.    From Wordnik.com.  [Signs of the Times] Reference

Because of this, Achernar is classified as a "Be" (B-emission) star, with an expanding circumstellar envelope of gas circulating around the equator.    From Wordnik.com.  [Conservapedia - Recent changes [en]]

November 20 (ANI): A team of astronomers has captured the first direct, well-resolved infrared images of a circumstellar disk around a young massive.    From Wordnik.com.  [WN.com - Photown News] Reference

Though massive stars may be created through an accretion process similar to that of lower mass stars, the fate of the circumstellar disk is different.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

Their findings contribute to understanding the role of circumstellar disks in massive star formation in particular and to the birth of stars in general.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

Several observations made in the 2000s indicated that some massive stars were formed by accretion; their circumstellar disks fed them the mass to increase in size.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

Or, the jets may be triggered by disturbances in remnant circumstellar disks, which might be perturbed by the close passage of a companion star in a binary system.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

"But, what it's really doing is telling us the amount of material that is crossing into the interaction zone where the blast wave is interacting with the circumstellar material.".    From Wordnik.com.  [Signs of the Times] Reference

Because of their intrinsically red colors and dusty circumstellar envelopes, tracking the numbers and bolometric fluxes of AGB stars requires the NIR observations we propose here.    From Wordnik.com.  [SpaceRef Top Stories] Reference

"pearls" of circumstellar material are made up of material that was emitted before the star exploded, as it was preparing to die.    From Wordnik.com.  [Discover Blogs] Reference

Within circumstellar habitable zone.    From Wordnik.com.  [Privileged Planet: Dissing St. Carl in his own church? Was that the crime?] Reference