description Bok Globule Barnard 335 Overview
Barnard 335 (B335) is an isolated, dark molecular cloud known as a Bok globule, located in the constellation Aquila. It is recognized as a prototypical environment for low-mass star formation. Inside the opaque cloud, an embedded protostar is actively accreting surrounding gas and dust. Because of its simple, spherical structure and lack of internal turbulence, B335 is frequently observed by instruments like the Spitzer Space Telescope and ALMA to study early stellar evolution.
help Bok Globule Barnard 335 FAQ
What is Barnard 335?
Barnard 335, or B335, is a dark Bok globule in the constellation Aquila. It contains an embedded, very young low-mass protostar that is still accreting material from its surrounding cloud.
Why do astronomers study B335?
B335 is unusually isolated, making it a relatively clean laboratory for studying how a low-mass star forms inside a collapsing cloud. Observations have examined its dense envelope, infall, and early disk-forming environment.
How far away is Barnard 335?
Distance estimates vary, but B335 is roughly 150 to 165 parsecs away, or several hundred light-years. That places it close enough for detailed infrared and millimeter observations while still requiring sensitive instruments.
What is a Bok globule?
A Bok globule is a small, dense, dark cloud of gas and dust that can hide forming stars inside it. B335 is a classic example because its opaque exterior conceals a protostar rather than a mature visible star.
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