Reigning Title-Holder for Coldest Brown Dwarf

Wise_wise2011-ydwarf-b1_500

WISE_WISE2011-ydwarf-b1 August 23rd, 2011

Credit: NASA/JPL-Caltech/UCLA

NASA's Wide-field Infrared Survey Explorer, or WISE, has uncovered the coldest brown dwarf known so far (green dot in very center of this infrared image). Called WISE 1828+2650, this chilly star-like body isn't even as warm as a human body, at less than about 80 degrees Fahrenheit (25 degrees Celsius). Like other brown dwarfs, it began life like a star, collapsing under its own weight into a dense ball of gas. But, unlike a star, it didn't have enough mass to fuse atoms at its core, and shine steadily with starlight. Instead, it has continued to cool and fade since its birth, and now gives off only a feeble amount of infrared light. WISE's highly sensitive infrared detectors were able to catch the glow of this object during its all-sky scan, which lasted from Jan. 2010 to Feb. 2011.

WISE 1828+2650 is located in the constellation Lyra. The blue dots are a mix of stars and galaxies.

This view shows three of WISE's four infrared channels, color-coded blue, green and red, with blue showing the shortest infrared wavelengths and red, the longest.

Image Source: /image/WISE/WISE2011-ydwarf-b1

Curator: Wide-field Infrared Survey Explorer, Berkeley, CA, USA

Image Use Policy: Pulic Domain

Image Details

Image Type
Observation
Object Name
WISE 1828+2650 Y-dwarf
Subject - Milky Way
Star » Type » Brown Dwarf

Distance

Universescale1
27 light years
Wise_wise2011-ydwarf-b1_128
 

Position Details

Position (ICRS)
RA = 18h 28m 44.2s
DEC = 27° 15’ 36.0”
Orientation
North is up
Field of View
20.0 x 20.0 arcminutes
Constellation
Lyra

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_blue WISE Infrared (Near-IR) 3.4 µm
Arrow_left_green WISE Infrared (Near-IR) 4.6 µm
Arrow_left_red WISE Infrared (Mid-IR) 12.0 µm
Spectrum_ir1
Arrow_top_blue
Arrow_top_green
Arrow_top_red
Wise_wise2011-ydwarf-b1_1280
×
ID
WISE2011-ydwarf-b1
Subject Category
B.3.2.3  
Subject Name
WISE 1828+2650, Y-dwarf
Credits
NASA/JPL-Caltech/UCLA
Lightyears
27
Redshift
Reference Url
/image/WISE/WISE2011-ydwarf-b1
Type
Observation
Image Quality
Good
Distance Notes
Facility
WISE, WISE, WISE
Instrument
Color Assignment
Blue, Green, Red
Band
Infrared, Infrared, Infrared
Bandpass
Near-IR, Near-IR, Mid-IR
Central Wavelength
3400, 4600, 12000
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
2000
Reference Value
277.184155, 27.260000
Reference Dimension
874, 874
Reference Pixel
310, 1527
Scale
-3.81944439141100e-04, 3.81944439141100e-04
Rotation
0
Coordinate System Projection:
SIN
Quality
Full
FITS Header
Notes
Creator (Curator)
Wide-field Infrared Survey Explorer
URL
http://wise.astro.ucla.edu
Name
Email
outreach@ssl.berkeley.edu
Telephone
Address
7 Gauss Way
City
Berkeley
State/Province
CA
Postal Code
94720
Country
USA
Rights
Pulic Domain
Publisher
Publisher ID
WISE
Resource ID
Resource URL
/image/WISE/WISE2011-ydwarf-b1
Related Resources
Metadata Date
2012-10-12 17:42:00 -0700
Metadata Version
1.2
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Detailed color mapping information coming soon...

 

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Universescalefull
27 light years