A spiral snowflake

Esahubble_potw1619a_1024

esahubble_potw1619a May 9th, 2016

Credit: ESA/Hubble & NASA Acknowledgement: Judy Schmidt (Geckzilla)

Spiral galaxies together with irregular galaxies make up approximately 60% of the galaxies in the local Universe. However, despite their prevalence, each spiral galaxy is unique like snowflakes, no two are alike. This is demonstrated by the striking face-on spiral galaxy NGC 6814, whose luminous nucleus and spectacular sweeping arms, rippled with an intricate pattern of dark dust, are captured in this NASA/ESA Hubble Space Telescope image. NGC 6814 has an extremely bright nucleus, a telltale sign that the galaxy is a Seyfert galaxy. These galaxies have very active centres that can emit strong bursts of radiation. The luminous heart of NGC 6814 is a highly variable source of X-ray radiation, causing scientists to suspect that it hosts a supermassive black hole with a mass about 18 million times that of the Sun. As NGC 6814 is a very active galaxy, many regions of ionised gas are studded along its spiral arms. In these large clouds of gas, a burst of star formation has recently taken place, forging the brilliant blue stars that are visible scattered throughout the galaxy.

Provider: Hubble Space Telescope | ESA

Image Source: http://www.spacetelescope.org/images/potw1619a/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details Image Details

Image Type
Observation
Object Name
NGC 6814
Subject - Local Universe
Galaxy > Type > Spiral
Esahubble_potw1619a_128
 

Position Details Position Details

Position (ICRS)
RA = 19h 42m 41.0s
DEC = -10° 19’ 30.8”
Orientation
North is 50.8° CCW
Field of View
2.6 x 2.6 arcminutes
Constellation
Aquila

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Red Hubble (WFC3) Infrared (H) 1.6 µm
Green Hubble (WFC3) Infrared (I) 814.0 nm
Blue Hubble (WFC3) Optical (V) 555.0 nm
Spectrum_base
Red
Green
Blue
Esahubble_potw1619a_1280
×
ID
potw1619a
Subject Category
C.5.1.1  
Subject Name
NGC 6814
Credits
ESA/Hubble & NASA Acknowledgement: Judy Schmidt (Geckzilla)
Release Date
2016-05-09T06:00:00
Lightyears
Redshift
Reference Url
http://www.spacetelescope.org/images/potw1619a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFC3, WFC3, WFC3
Color Assignment
Red, Green, Blue
Band
Infrared, Infrared, Optical
Bandpass
H, I, V
Central Wavelength
1600, 814, 555
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
295.670674201, -10.3252095605
Reference Dimension
3970.0, 3970.0
Reference Pixel
1985.0, 1985.0
Scale
-1.10101340824e-05, 1.10101340824e-05
Rotation
50.819999999999943
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
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw1619a
Metadata Date
2016-02-07T10:43:21+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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