High-resolution spectrum of the star HD100623 (raw)

Eso_eso0308c_1024

eso_eso0308c March 27th, 2003

Credit: ESO

A HARPS untreated ("raw") exposure of the star HD100623, of the comparatively cool stellar spectral type K0V. The frame shows the complete image as recorded with the 4000 x 4000 pixel CCD detector in the focal plane of the spectrograph. The horizontal white lines correspond to the stellar spectrum, divided into 70 adjacent spectral bands which together cover the entire visible wavelength range from 380 to 690 nm. Some of the stellar absorption lines are seen as dark horizontal features; they are the spectral signatures of various chemical elements in the star's upper layers ("atmosphere"). Bright emission lines from the heavy element thorium are visible between the bands - they are exposed by a lamp in the spectrograph to calibrate the wavelengths. This allows measuring any instrumental drift, thereby guaranteeing the exceedingly high precision that qualifies HARPS.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso0308c/

Curator: European Southern Observatory, 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
HD100623 Spectrum
Subject - Milky Way
Star > Spectral Type > K

Color Mapping

  Telescope Spectral Band Wavelength
Grayscale ESO-3.6m (HARPS) Optical (B) 535.0 nm
Spectrum_base
Grayscale
Eso_eso0308c_1280
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ID
eso0308c
Subject Category
B.3.3.6  
Subject Name
HD100623, Spectrum
Credits
ESO
Release Date
2003-03-27T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0308c/
Type
Observation
Image Quality
Distance Notes
Facility
ESO 3.6-metre telescope
Instrument
HARPS
Color Assignment
Grayscale
Band
Optical
Bandpass
B
Central Wavelength
535
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
976.0, 1026.0
Reference Pixel
Scale
Rotation
Coordinate System Projection:
Quality
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.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
European Southern Observatory
Publisher ID
eso
Resource ID
eso0308c
Metadata Date
2016-07-18T12:46:24+02:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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