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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 Space Telescope Peers Into Core of Distant Galaxy
Title
Hubble Space Telescope Peers Into Core of Distant Galaxy
Title
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Object Name:
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NGC 7457
Object_Name
NGC 7457
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*:August 29, 1990 12:00 AM (EDT)
note
*Release Date*:August 29, 1990 12:00 AM (EDT)
note
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note:
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*News Release Number:*: STScI-1990-08a
note
*News Release Number:*: STScI-1990-08a
note
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note:
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*Title*:Hubble Space Telescope Peers Into Core of Distant Galaxy
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*Title*:Hubble Space Telescope Peers Into Core of Distant Galaxy
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note:
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*Description*:
This Hubble Space Telescope view of galaxy NGC 7457, was taken on August 17, 1990 with the Wide Field and Planetary Camera. The picture on the left with high contrast shows the central portion of the galaxy. Predictably, the density of the starry population smoothly increases toward the galactic center.
The picture on the right is of the same galaxy, but the contrast has been adjusted to reveal a surprisingly high concentration of stars pinpointed exactly at the galaxy's core. The nucleus is so compact it is even beyond HST's .1 arc second resolution. Stars are crammed together at least 30,000 times more densely than they are in our own stellar neighborhood. It is not yet known how this tight core is gravitationally held together.
Forty million light-years away NGC 7457 is one of the first "normal" galaxies that HST has observed. This unexpected finding suggests that the cores of many galaxies may be far more densely packed with stars than earlier thought.
note
*Description*:
This Hubble Space Telescope view of galaxy NGC 7457, was taken on August 17, 1990 with the Wide Field and Planetary Camera. The picture on the left with high contrast shows the central portion of the galaxy. Predictably, the density of the starry population smoothly increases toward the galactic center.
The picture on the right is of the same galaxy, but the contrast has been adjusted to reveal a surprisingly high concentration of stars pinpointed exactly at the galaxy's core. The nucleus is so compact it is even beyond HST's .1 arc second resolution. Stars are crammed together at least 30,000 times more densely than they are in our own stellar neighborhood. It is not yet known how this tight core is gravitationally held together.
Forty million light-years away NGC 7457 is one of the first "normal" galaxies that HST has observed. This unexpected finding suggests that the cores of many galaxies may be far more densely packed with stars than earlier thought.
note
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facet_what:
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Faint Object Camera
facet_what
Faint Object Camera
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_when:
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August 29, 1990
facet_when
August 29, 1990
facet_when
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facet_when:
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August 17, 1990
facet_when
August 17, 1990
facet_when
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facet_when_year:
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1990
facet_when_year
1990
facet_when_year
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UID:
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SPD-HUBBLE-STScI-199 0-08a
UID
SPD-HUBBLE-STScI-199 0-08a
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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August 29, 1990 12:00 AM (EDT)
Release_Date
August 29, 1990 12:00 AM (EDT)
Release Date
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