An Unexpected Scattering of Light

Spitzer_sig10-020b_1024

spitzer_sig10-020b September 23rd, 2010

Credit: NASA/JPL-Caltech/L. Pagani (Observatoire de Paris/CNRS)

This series of images from NASA's Spitzer Space Telescope shows a dark mass of gas and dust, called a core, where new stars and planets will likely spring up.

This image shows the core as seen at a shorter infrared wavelength (3.6 microns). In this view, the core lights up because it is deflecting starlight from nearby stars. This unexpected light, called coreshine, tells astronomers that the dust making up the core must be bigger than previously thought -- smaller particles would not have been big enough to scatter the light.

This particular core lies deep within a larger dark cloud called L183. Spitzer's infrared vision allows it to peer into the dark cloud to see the even darker cores buried inside.

The observations were made with Spitzer's infrared array camera (IRAC).

Provider: Spitzer Space Telescope

Image Source: http://www.spitzer.caltech.edu/images/3390-sig10-020b-An-Unexpected-Scattering-of-Light

Curator: Spitzer Space Telescope, Pasadena, CA, USA

Image Use Policy: Public Domain

Image Details Image Details

Image Type
Observation
Object Name
Lynds 183 L183
Subject - Milky Way
Nebula > Appearance > Dark

Distance Details Distance

Universescale1
325 light years
Spitzer_sig10-020b_128
 

Position Details Position Details

Position (ICRS)
RA = 15h 54m 10.3s
DEC = -2° 53’ 32.6”
Orientation
North is 15.0° CW
Field of View
17.2 x 21.9 arcminutes
Constellation
Serpens

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Blue Spitzer (IRAC) Infrared (Near-IR) 3.6 µm
Spectrum_base
Blue
Spitzer_sig10-020b_1280
×
ID
sig10-020b
Subject Category
B.4.2.3.  
Subject Name
Lynds 183, L183
Credits
NASA/JPL-Caltech/L. Pagani (Observatoire de Paris/CNRS)
Release Date
2010-09-23
Lightyears
325
Redshift
325
Reference Url
http://www.spitzer.caltech.edu/images/3390-sig10-020b-An-Unexpected-Scattering-of-Light
Type
Observation
Image Quality
Good
Distance Notes
Facility
Spitzer
Instrument
IRAC
Color Assignment
Blue
Band
Infrared
Bandpass
Near-IR
Central Wavelength
3600
Start Time
2005-08-23T10:36
Integration Time
26.8
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
238.5428332, -2.8923918
Reference Dimension
1720.0, 2190.0
Reference Pixel
861.0, 1096.0
Scale
0.000166613, 0.0001666131
Rotation
-15.01
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
Spitzer Space Telescope
URL
http://www.spitzer.caltech.edu
Name
Email
Telephone
Address
1200 E. California Blvd.
City
Pasadena
State/Province
CA
Postal Code
91125
Country
USA
Rights
Public Domain
Publisher
Spitzer Science Center
Publisher ID
spitzer
Resource ID
sig10-020b.tif
Metadata Date
2011-09-01
Metadata Version
1.1
×

 

Detailed color mapping information coming soon...

×
Universescalefull
325 light years

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