Cepheid 3 NGC 4603

Esahubble_opo9919f_1024

esahubble_opo9919f May 25th, 1999

Credit: NASA & ESA

Harvard Observatory astronomer Henrietta S. Leavitt makes the first crucial step in establishing the distances to nearby "spiral nebulae." Studying variable stars in the Magellanic Clouds, she discovers the presence of rhythmically pulsating stars, known as Cepheid variables, which brighten and dim over a period of days. By observing the relationship between a Cepheid's brightness and its pulsation rate, astronomers can calculate how much light it emits and then use that number to estimate its distance.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/opo9919f/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

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Image Details

Image Type
Observation
Object Name
Cepheids IRAS 12382-4042 NGC 4603
Subject - Local Universe
Star > Type > Variable
Galaxy > Type > Spiral

Color Mapping

  Telescope Spectral Band Wavelength
Grayscale Hubble (WFPC2) Infrared (I) 814.0 nm
Grayscale Hubble (WFPC2) Optical (V) 555.0 nm
Spectrum_base
Grayscale
Grayscale
Esahubble_opo9919f_1280
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ID
opo9919f
Subject Category
C.3.2.1   C.5.1.1  
Subject Name
Cepheids, IRAS 12382-4042, NGC 4603
Credits
NASA & ESA
Release Date
1999-05-25T17:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/opo9919f/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope
Instrument
WFPC2, WFPC2
Color Assignment
Grayscale, Grayscale
Band
Infrared, Optical
Bandpass
I, V
Central Wavelength
814, 555
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
Reference Pixel
Scale
Rotation
Coordinate System Projection:
Quality
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
opo9919f
Metadata Date
2019-10-07T11:41:50.778291
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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