A Galactic Powerhouse

Esahubble_potw2124a_1024

esahubble_potw2124a June 14th, 2021

Credit: ESA/Hubble & NASA, A. Riess et al.

This image shows the spiral galaxy NGC 3254, observed using Hubble's Wide Field Camera 3 (WFC3). WFC3 has the capacity to observe ultraviolet, visible and near-infrared light, and this image is a composite of observations taken in the visible and infrared. In this image, NGC 3254 looks like a typical spiral galaxy, viewed side-on. However, NGC 3254 has a fascinating secret that it is hiding in plain sight it is a Seyfert galaxy, meaning that it has an extraordinarily active core, known as an active galactic nucleus, which releases as much energy as the rest of the galaxy put together. Seyfert galaxies are not rare about 10% of all galaxies are thought to be Seyfert galaxies. They belong to the class of active galaxies galaxies that have supermassive black holes at their centres that are actively accreting material, which releases vast amounts of radiation as it is accreted. There is a second, far more active, type of active galaxy that is known as a quasar. The active cores of Seyfert galaxies, such as NGC 3254, are brightest when observed in light outside the visible spectrum. At other wavelengths, this image would look very different, with the galaxys core shining extremely brightly. Links Video ofA Galactic Powerhouse

Provider: Hubble Space Telescope | ESA

Image Source: https://esahubble.org/images/potw2124a/

Curator: ESA/Hubble, Baltimore, MD, United States

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
NGC 3254
Esahubble_potw2124a_128
 

Position Details

Position (ICRS)
RA = 10h 29m 23.8s
DEC = 29° 30’ 6.7”
Orientation
North is 7.3° CCW
Field of View
2.4 x 2.0 arcminutes
Constellation
Leo Minor

Color Mapping

  Telescope Spectral Band Wavelength
Blue Hubble (WFC3) Optical (Long pass) 350.0 nm
Green Hubble (WFC3) Optical (V) 555.0 nm
Orange Hubble (WFC3) Optical (I) 814.0 nm
Red Hubble (WFC3) Infrared (H) 1.6 µm
Spectrum_base
Blue
Green
Orange
Red
Esahubble_potw2124a_1280
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ID
potw2124a
Subject Category
Subject Name
NGC 3254
Credits
ESA/Hubble & NASA, A. Riess et al.
Release Date
2021-06-14T06:00:00
Lightyears
Redshift
Reference Url
https://esahubble.org/images/potw2124a/
Type
Observation
Image Quality
Distance Notes
Comment about the contents of the Distance tag.
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFC3, WFC3, WFC3, WFC3
Color Assignment
Blue, Green, Orange, Red
Band
Optical, Optical, Optical, Infrared
Bandpass
Long pass, V, I, H
Central Wavelength
350, 555, 814, 1600
Start Time
Integration Time
Dataset ID
None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
157.34931069616002, 29.501861372962402
Reference Dimension
3644.0, 3081.0
Reference Pixel
1822.0, 1540.5
Scale
-1.1001831391512623e-05, 1.1001831391512623e-05
Rotation
7.3400000000000238
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
https://esahubble.org
Name
Email
Telephone
Address
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr
City
Baltimore
State/Province
MD
Postal Code
21218
Country
United States
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw2124a
Metadata Date
2021-05-14T10:27:45+02:00
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.