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Isolated, small, and opaque nebula
astronomy, Bok globules are isolated and relatively small dark nebulae containing dense cosmic dust and gas from which star formation may take place. Bok globules
Bok_globule
Bok globule in the Carina Nebula
The "Finger of God" globule is a Bok globule and dark nebula located around 7,300 light-years away from Earth, within the Carina Nebula. It is ~2 light
Finger_of_God_Globule
Topics referred to by the same term
Look up globule in Wiktionary, the free dictionary. Globule may refer to: Bok globule, dark clouds of dense cosmic dust Drop (liquid), small column of
Globule
H II region and open cluster in the constellation Centaurus
features Bok globules, which are frequently a site of active star formation. However, no evidence for star formation has been found in any of the globules in
IC_2944
Dark absorption nebula
Barnard 68 is a molecular cloud, dark absorption nebula or Bok globule, towards the southern constellation Ophiuchus and well within the Milky Way galaxy
Barnard_68
Early stage in the process of star formation
HOPS 383 (2015). Protostar in Herbig-Haro 46/47. A protostar inside a Bok globule (Artist's image). Stellar cluster RCW 38, around the young star IRS2
Protostar
American astronomer and lecturer (1906–1983)
of Bok globules, which are small, densely dark clouds of interstellar gas and dust that can be seen silhouetted against brighter backgrounds. Bok suggested
Bart_Bok
Emission nebula in the constellation Vela
ordinary Bok globules, cometary globules are believed to be associated with star formation. A notable object inside one of these cometary globules is the
Gum_Nebula
Nebula
Barnard 335 (also known as B335 or Lynds 663) is a bok globule. It contains a single very young low-mass protostar. Barnard 335 was discovered in 1927
Barnard_335
Topics referred to by the same term
central bank BOK Financial Corporation, headquartered in Tulsa, Oklahoma, United States BOK (gene), full name BCL2-related ovarian killer Bok globule, dark clouds
Bok
Type of interstellar cloud that obscures visible light
with Giant Molecular Clouds. Isolated small dark nebulae are called Bok globules. Like other interstellar dust or material, the objects obscured are visible
Dark_nebula
Zodiac constellation in the southern celestial hemisphere
in the discovery of Bok globules, as Bart Bok studied prints of the nebula intensively in 1947. Approximately 17,000 Bok globules were discovered in the
Sagittarius_(constellation)
Star in its early stage of evolution
intermediate-mass YSOs, and brown dwarfs. Young stellar jet MHO 2147 Star portal Bok globule Lada, Charles J. (1987). "Star Formation: From OB Associations to Protostars"
Young_stellar_object
Gravitational process studied in astronomy
the opaque clouds of dense gas and dust known as Bok globules, so named after the astronomer Bart Bok. These can form in association with collapsing molecular
Star_formation
Telescope operated by the Steward Observatory in Pima County, Arizona
viewing by a human observer, uncharacteristic for telescopes of this size. Bok globules List of largest optical telescopes in the 20th century List of observatories
Bok_Telescope
Type of interstellar cloud
with masses less than a few hundred times that of the Sun are called Bok globules. The densest parts of small molecular clouds are equivalent to the molecular
Molecular_cloud
Large, low-density interstellar cloud of partially ionized gas
as "globules", since referred to as Bok globules. Bok proposed at the December 1946 Harvard Observatory Centennial Symposia that these globules were
H_II_region
Star-forming region in the Puppis constellation
(400 pc) from Earth. It is one of several objects referred to as "cometary globules", because its shape is similar to that of a comet. It has a dense head
CG_4
Emission nebula
surrounds blue giant 68 Cygni. The nebula contains multiple dust lanes and bok globules. 68 Cygni is the primary source of ionization within the nebula. The
Clamshell_Nebula
Hypothetical early-universe star with a black hole core
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Quasi-star
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
List_of_brightest_stars
Process of energy release of a contracting star or planet
Star formation Object classes Interstellar medium Molecular cloud Bok globule Dark nebula Young stellar object Protostar Pre-main-sequence star T Tauri
Kelvin–Helmholtz_mechanism
Interstellar clouds in the constellation Carina
northwest of the Carina Nebula (or to its embedded star cluster). A small Bok globule in the Keyhole Nebula (at RA 10h 44m 30s, Dec −59° 40') has been photographed
Carina_Nebula
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
List_of_nearest_stars
Natural physical entity in space
remnant Plerion H II region Reflection Dark nebulae Molecular cloud Bok globule Proplyd H I region Cosmic scale CMB Cosmic string (hypothet.) Dark matter
Astronomical_object
Nebula in the constellation Musca
and a bok globule in the constellation of Musca which is 600 light years from the Solar System. It has a diameter of about 1 light year. The globule has
BHR_71
Open cluster in the constellation Serpens
star formation. Its small dark pockets are believed to be protostars (Bok globules). The pillar structure resembles that of a much larger instance in the
Eagle_Nebula
Type of neutron star with beams of radiation
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Pulsar
Bok globule located in the Cepheus constellation
Barnard 175, also known as B175, is a cometary-shaped Bok globule located around 400 parsecs from Earth in the constellation of Cepheus. It is embedded
Barnard_175
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
List_of_proper_names_of_stars
Star in the stage when it has not yet reached the main sequence
Star formation Object classes Interstellar medium Molecular cloud Bok globule Dark nebula Young stellar object Protostar Pre-main-sequence star T Tauri
Pre-main-sequence_star
Theoretical stellar remnant
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Black_dwarf
Stellar classification
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
K-type_main-sequence_star
Astronomical theory about the Solar System
that disk accreted into the giant planet's regular moons. Asteroid belt Bok globule Comet Exocomet Formation and evolution of the Solar System Herbig–Haro
Nebular_hypothesis
Type of neutron star with a strong magnetic field
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Magnetar
Emission nebula in the constellation Cassiopeia
sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star, B 1. It collectively forms Sh2-184, spanning over
NGC_281
Light from the stars
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Starlight
Young stars of spectral types A and B
Star formation Object classes Interstellar medium Molecular cloud Bok globule Dark nebula Young stellar object Protostar Pre-main-sequence star T Tauri
Herbig_Ae/Be_star
Brightness of a celestial object observed from the Earth
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Apparent_magnitude
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
List_of_largest_stars
Type of luminous supergiant star
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Post-AGB_star
Stellar classification
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
G-type_main-sequence_star
Scatter plot of stars showing the relationship of luminosity to stellar classification
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Hertzsprung–Russell_diagram
Grouping of stars by similar metallicity
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Stellar_population
Comparison of a wide range of volumes
2001). "Bart Bok's Black Blobs". American Scientist. Archived from the original on 29 June 2003. Retrieved 19 November 2008. Bok globules such as Barnard
Orders_of_magnitude_(volume)
Classification in astronomy
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Compact_object
Value in astrophysics
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Hayashi_limit
Bookkeeping survey of stars
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Star_count
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Lists_of_stars
Event wherein the Sun is obscured by the Moon
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Solar_eclipse
Large self-illuminated object in space
collapses, individual conglomerations of dense dust and gas form "Bok globules". As a globule collapses and the density increases, the gravitational energy
Star
Unit of time
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Galactic_year
Light emitted by the Sun
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Sunlight
Continuous band of stars that appears on plots of stellar color versus brightness
Star formation Object classes Interstellar medium Molecular cloud Bok globule Dark nebula Young stellar object Protostar Pre-main-sequence star T Tauri
Main_sequence
Stars with a supergiant luminosity class with a spectral type of K or M
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Red_supergiant
1957 novel by Fred Hoyle
Earth became aware of a cloud of gas and dust, initially thought to be a Bok globule, that is heading for the Solar System. The cloud, if interposed between
The_Black_Cloud
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
List of the most distant astronomical objects
List_of_the_most_distant_astronomical_objects
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
List_of_most_distant_stars
Stars that have had their light output measured carefully
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Photometric-standard_star
Stellar core remnant
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
White_dwarf
Herbig-Haro objects in the constellation Vela
objects), located around 450 parsecs (about 1,470 light-years) away in a Bok globule near the Gum Nebula. Jets of partially ionized gas emerging from a young
HH_46/47
Hypothesized alternative to a black hole
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Gravastar
terminology) Center of gravity CG – (celestial object) Cometary Globule, a Bok globule that show signs of a tail-like extension CG – (celestial object)
List_of_astronomy_acronyms
of astronomical objects Dark nebula constellation Nebula Dark nebulae Bok globules Barnard Catalogue Lynds' Catalogue of Dark Nebulae Sandqvist, Aa; Lindroos
List_of_dark_nebulae
Class of young variable stars
Star formation Object classes Interstellar medium Molecular cloud Bok globule Dark nebula Young stellar object Protostar Pre-main-sequence star T Tauri
T_Tauri_star
Pattern of stars recognized on Earth's night sky
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Asterism_(astronomy)
Astronomical phenomenon
Star formation Object classes Interstellar medium Molecular cloud Bok globule Dark nebula Young stellar object Protostar Pre-main-sequence star T Tauri
Planetary_migration
Creation of chemical elements within stars
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Stellar_nucleosynthesis
Gas and dust surrounding a newly formed star
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Protoplanetary_disk
Star's outer shell from which light is radiated
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Photosphere
Nebular structure inside Carina Nebula
the Sun). A small Bok globule within it, photographed in detail by the Hubble Space Telescope, is nicknamed the Finger of God Globule for its finger-like
Keyhole_Nebula
Star at the centre of the Solar System
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Sun
Astronomical phenomenon
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Gravity_darkening
Type of star
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Shell_star
Dim, low mass stars on the main sequence
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Red_dwarf
Hypothetical types of stars
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Exotic_star
Star not gravitationally bound to any galaxy
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Intergalactic_star
Type of emission nebula created by dying red giants
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Planetary_nebula
Star forming region in the constellation Chamaleon
Thumbprint nebula: The distribution of molecular gas and dust in a regular BOK globule". Astronomy and Astrophysics. 295: 487–503. Bibcode:1995A&A...295..487L
Chamaeleon_Cloud
Distribution within a group of stars of the ratio of iron to hydrogen in a star
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Metallicity distribution function
Metallicity_distribution_function
Open cluster in the nebulosity
image uses Allwise Atlas images and the right image use unWISE coadds. Bok globule in NGC 281 near the star cluster IC 1590. Image by the Hubble Space Telescope
IC_1590
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
List of star systems within 20–25 light-years
List_of_star_systems_within_20–25_light-years
Outermost layer of a star's atmosphere
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Stellar_corona
Type of star, larger and brighter than the Sun
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Giant_star
Star formation process
Star formation Object classes Interstellar medium Molecular cloud Bok globule Dark nebula Young stellar object Protostar Pre-main-sequence star T Tauri
Jeans_instability
Type of eruptive variable star
Star formation Object classes Interstellar medium Molecular cloud Bok globule Dark nebula Young stellar object Protostar Pre-main-sequence star T Tauri
FU_Orionis_star
Hot, giant star of early spectral type
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Blue_giant
Supernova that ejects a large mass at unusually high velocity
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Hypernova
Empirical function in astronomy
Star formation Object classes Interstellar medium Molecular cloud Bok globule Dark nebula Young stellar object Protostar Pre-main-sequence star T Tauri
Initial_mass_function
Nuclear fusion reaction
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Alpha_process
Hypothetical star heated by dark-matter annihilation
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Dark_star_(dark_matter)
Cold, dense region of a giant molecular cloud
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Infrared_dark_cloud
Hypothetical class of star that develops from a red dwarf
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Blue_dwarf_(red-dwarf_stage)
Process where a red giant star engulfs a planet
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Stellar_engulfment
Small patches of nebulosity associated with newly born stars
and are often found in large groups. They are typically observed near Bok globules (dark nebulae which contain very young stars) and often emanate from
Herbig–Haro_object
Astrophysical phenomenon
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Supernova
Star-forming regions in the constellation Cassiopeia
Cepheus Cloud; within it are several substructures, including a well-known Bok globule cataloged as Sh2-136 (in Cepheus): this is a dark cocoon visible against
Star-forming regions of Cassiopeia
Star-forming_regions_of_Cassiopeia
Concept in astronomy
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Brown-dwarf_desert
Curve on the Hertzsprung-Russell diagram representing stars of a particular age
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Stellar_isochrone
Astronomical category of stars
v t e Stars List Formation Accretion Molecular cloud Bok globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object
Iron_star
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