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Collection:
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NASA Hubble Space Telescope Collection
Collection
NASA Hubble Space Telescope Collection
Collection
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Title:
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Hubble's Infrared Galaxy Gallery
Title
Hubble's Infrared Galaxy Gallery
Title
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Object Name:
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NGC 5653
Object_Name
NGC 5653
Object Name
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Object Name:
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NGC 3593
Object_Name
NGC 3593
Object Name
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Object Name:
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NGC 891
Object_Name
NGC 891
Object Name
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Object Name:
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NGC 4826
Object_Name
NGC 4826
Object Name
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Object Name:
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NGC 2903
Object_Name
NGC 2903
Object Name
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Object Name:
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NGC 6946
Object_Name
NGC 6946
Object Name
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Acknowledgement:
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Acknowledgement
Acknowledgement
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Fast Facts:
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note:
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*Image Type:*: Astronomical
note
*Image Type:*: Astronomical
note
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note:
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*Release Date*:March 18, 1999 12:00 AM (EST)
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*Release Date*:March 18, 1999 12:00 AM (EST)
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note:
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*News Release Number:*: STScI-1999-10a
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*News Release Number:*: STScI-1999-10a
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note:
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*Title*:Hubble's Infrared Galaxy Gallery
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*Title*:Hubble's Infrared Galaxy Gallery
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note:
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*Description*:
Astronomers have used the NASA Hubble Space Telescope to produce an infrared "photo essay" of spiral galaxies. By penetrating the dust clouds swirling around the centers of these galaxies, the telescope's infrared vision is offering fresh views of star birth.
These six images, taken with the Near Infrared Camera and Multi-Object Spectrometer, showcase different views of spiral galaxies, from a face-on image of an entire galaxy to a close-up of a core. The top row shows spirals at diverse angles, from face-on, (left); to slightly tilted, (center); to edge-on, (right). The bottom row shows close-ups of the hubs of three galaxies.
In these images, red corresponds to glowing hydrogen, the raw material for star birth. The red knots outlining the curving spiral arms in NGC 5653 and NGC 3593, for example, pinpoint rich star-forming regions where the surrounding hydrogen gas is heated by intense ultraviolet radiation from young, massive stars. In visible light, many of these regions can be hidden from view by the clouds of gas and dust in which they were born.
The glowing hydrogen found inside the cores of these galaxies, as in NGC 6946, may be due to star birth; radiation from active galactic nuclei (AGN), which are powered by massive black holes; or a combination of both. White is light from middle-age stars. Clusters of stars appear as white dots, as in NGC 2903. The galaxy cores are mostly white because of their dense concentration of stars. The dark material seen in these images is dust.
These galaxies are part of a Hubble census of about 100 spiral galaxies. Astronomers at Space Telescope Science Institute took these images to fill gaps in the scheduling of a campaign using the NICMOS-3 camera. The data were non-proprietary, and were made available to the entire astronomical community.
Filters: Three filters were used: red, blue, and green. Red represents emission at the Paschen Alpha line (light from glowing hydrogen) at a wavelength of 1.87 microns. Blue shows the galaxies in near-infrared light, measured between 1.4 and 1.8 microns (H-band emission). Green is a mixture of the two.
Distance of galaxies from Earth: NGC 5653 - 161 million light-years; NGC 3593 - 28 million light-years; NGC 891 - 24 million light-years; NGC 4826 - 19 million light-years; NGC 2903 - 25 million light-years; and NGC 6946 - 20 million light-years.
note
*Description*:
Astronomers have used the NASA Hubble Space Telescope to produce an infrared "photo essay" of spiral galaxies. By penetrating the dust clouds swirling around the centers of these galaxies, the telescope's infrared vision is offering fresh views of star birth.
These six images, taken with the Near Infrared Camera and Multi-Object Spectrometer, showcase different views of spiral galaxies, from a face-on image of an entire galaxy to a close-up of a core. The top row shows spirals at diverse angles, from face-on, (left); to slightly tilted, (center); to edge-on, (right). The bottom row shows close-ups of the hubs of three galaxies.
In these images, red corresponds to glowing hydrogen, the raw material for star birth. The red knots outlining the curving spiral arms in NGC 5653 and NGC 3593, for example, pinpoint rich star-forming regions where the surrounding hydrogen gas is heated by intense ultraviolet radiation from young, massive stars. In visible light, many of these regions can be hidden from view by the clouds of gas and dust in which they were born.
The glowing hydrogen found inside the cores of these galaxies, as in NGC 6946, may be due to star birth; radiation from active galactic nuclei (AGN), which are powered by massive black holes; or a combination of both. White is light from middle-age stars. Clusters of stars appear as white dots, as in NGC 2903. The galaxy cores are mostly white because of their dense concentration of stars. The dark material seen in these images is dust.
These galaxies are part of a Hubble census of about 100 spiral galaxies. Astronomers at Space Telescope Science Institute took these images to fill gaps in the scheduling of a campaign using the NICMOS-3 camera. The data were non-proprietary, and were made available to the entire astronomical community.
Filters: Three filters were used: red, blue, and green. Red represents emission at the Paschen Alpha line (light from glowing hydrogen) at a wavelength of 1.87 microns. Blue shows the galaxies in near-infrared light, measured between 1.4 and 1.8 microns (H-band emission). Green is a mixture of the two.
Distance of galaxies from Earth: NGC 5653 - 161 million light-years; NGC 3593 - 28 million light-years; NGC 891 - 24 million light-years; NGC 4826 - 19 million light-years; NGC 2903 - 25 million light-years; and NGC 6946 - 20 million light-years.
note
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facet_what:
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Earth
facet_what
Earth
facet_what
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facet_what:
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Visible Light
facet_what
Visible Light
facet_what
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facet_what:
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Uranus
facet_what
Uranus
facet_what
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facet_what:
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NICMOS
facet_what
NICMOS
facet_what
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facet_what:
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Multi-Object Spectrometer
facet_what
Multi-Object Spectrometer
facet_what
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facet_what:
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Spectrometer
facet_what
Spectrometer
facet_what
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facet_what:
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Hubble Space Telescope (HST)
facet_what
Hubble Space Telescope (HST)
facet_what
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facet_what:
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Near Infrared Camera and Multi-Object Spectrometer (NICMOS)
facet_what
Near Infrared Camera and Multi-Object Spectrometer (NICMOS)
facet_what
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facet_where:
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Uranus
facet_where
Uranus
facet_where
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facet_where:
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NGC 891
facet_where
NGC 891
facet_where
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facet_where:
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NGC 4826
facet_where
NGC 4826
facet_where
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facet_when:
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March 18, 1999
facet_when
March 18, 1999
facet_when
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facet_when_year:
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1999
facet_when_year
1999
facet_when_year
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UID:
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SPD-HUBBLE-STScI-199 9-10a
UID
SPD-HUBBLE-STScI-199 9-10a
UID
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original url:
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original_url
original url
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Release Date:
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March 18, 1999 12:00 AM (EST)
Release_Date
March 18, 1999 12:00 AM (EST)
Release Date
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