Settling into old age

Esahubble_potw1919a_1024

esahubble_potw1919a May 13th, 2019

Credit: ESA/Hubble & NASA, B. Lehmer et al.

NGC 3384, visible in this image, has many of the features characteristic of so-called elliptical galaxies. Such galaxies glow diffusely, are rounded in shape, display few visible features, and rarely show signs of recent star formation. Instead, they are dominated by old, ageing, and red-hued stars. This stands in contrast to the sprightliness of spiral galaxies such as our home galaxy, the Milky Way, which possess significant populations of young, blue stars in spiral arms swirling around a bright core. However, NGC 3384 also displays a hint of disc-like structure towards its centre, in the form of a central bar of stars cutting through its centre. Many spirals also boast such a bar, the Milky Way included; galactic bars are thought to funnel material through and around a galaxys core, helping to maintain and fuel the activities and processes occurring there. NGC 3384 is located approximately 35 million light-years away in the constellation of Leo (The Lion). This image was taken using the NASA/ESA Hubble Space Telescopes Advanced Camera for Surveys.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/potw1919a/

Curator: ESA/Hubble, Garching bei München, None, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details Image Details

Image Type
Observation
Object Name
NGC 3384
Subject - Local Universe
Galaxy > Type > Elliptical
Esahubble_potw1919a_128
 

Position Details Position Details

Position (ICRS)
RA = 10h 48m 16.9s
DEC = 12° 37’ 45.6”
Orientation
North is 101.9° CW
Field of View
3.3 x 3.4 arcminutes
Constellation
Leo

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Blue Hubble (ACS) Optical (g) 475.0 nm
Green Hubble (ACS) Optical (g) 475.0 nm
Green Hubble (ACS) Optical (z) 850.0 nm
Red Hubble (ACS) Optical (z) 850.0 nm
Spectrum_base
Blue
Green
Green
Red
Esahubble_potw1919a_1280
×
ID
potw1919a
Subject Category
C.5.1.4  
Subject Name
NGC 3384
Credits
ESA/Hubble & NASA, B. Lehmer et al.
Release Date
2019-05-13T06:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw1919a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
ACS, ACS, ACS, ACS
Color Assignment
Blue, Green, Green, Red
Band
Optical, Optical, Optical, Optical
Bandpass
g, g, z, z
Central Wavelength
475, 475, 850, 850
Start Time
Integration Time
Dataset ID
None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
162.070492392, 12.629333488
Reference Dimension
3922.0, 4053.0
Reference Pixel
1961.0, 2026.5
Scale
-1.38952376894e-05, 1.38952376894e-05
Rotation
-101.85999999999997
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.org
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
None
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw1919a
Metadata Date
2018-12-14T14:56:39+01:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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There is no distance meta data in this image.

 

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