A star that should not exist

Eso_eso1132a_1024

eso_eso1132a August 31st, 2011

Credit: ESO/Digitized Sky Survey 2

At the centre of this picture is a very unremarkable looking faint star, too faint to be seen through all but the largest amateur telescopes. This ancient star, in the constellation of Leo (The Lion), is called SDSS J102915+172927 and has been found to have the lowest amount of elements heavier than helium of all stars yet studied. It has a mass smaller than that of the Sun and is probably more than 13 billion years old.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso1132a/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details Image Details

Image Type
Observation
Object Name
SDSS J102915+172927
Subject - Milky Way
Star
Eso_eso1132a_128
 

Position Details Position Details

Position (ICRS)
RA = 10h 29m 14.1s
DEC = 17° 29’ 12.8”
Orientation
North is 1.6° CW
Field of View
15.6 x 15.6 arcminutes
Constellation
Leo

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Red DSS2 (None) Optical (R) -
Green DSS2 (None) Optical (Pseudogreen (B+R)) -
Blue DSS2 (None) Optical (B) -
Eso_eso1132a_1280
×
ID
eso1132a
Subject Category
B.3  
Subject Name
SDSS J102915+172927
Credits
ESO/Digitized Sky Survey 2
Release Date
2011-08-31T19:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso1132a/
Type
Observation
Image Quality
Distance Notes
Facility
Digitized Sky Survey 2, Digitized Sky Survey 2, Digitized Sky Survey 2
Instrument
None, None, None
Color Assignment
Red, Green, Blue
Band
Optical, Optical, Optical
Bandpass
R, Pseudogreen (B+R), B
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
157.308607007, 17.4868896405
Reference Dimension
1280.0, 1280.0
Reference Pixel
661.0, 618.0
Scale
-0.000202982363216, 0.000202982363216
Rotation
-1.57649579027
Coordinate System Projection:
TAN
Quality
Full
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
eso1132a
Metadata Date
2011-08-23T13:49:39+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.

 

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