True shape of the Boomerang

Eso_potw1724a_500

eso_potw1724a June 12th, 2017

Credit: ALMA (ESO/NAOJ/NRAO)/R. Sahai

This Picture of Week shows the Boomerang Nebula, a protoplanetary nebula, as seen by the Atacama Large Millimeter/submillimeter Array (ALMA). The background purple structure, as seen in visible light with the NASA/ESA Hubble Space Telescope, shows a classic double-lobe shape with a very narrow central region. ALMAs ability to see the cold molecular gas reveals the nebulas more elongated shape, in orange. Since 2003 the nebula, located about 5000 light-years from Earth, has held the record for the coldest known object in the Universe. The nebula is thought to have formed from the envelope of a star in its later stages of life which engulfed a smaller, binary companion. It is possible that this is the cause of the ultra-cold outflows, which are illuminated by the light of the central, dying star. ALMA looked at the nebulas central dusty disc and the outflows further out, which span a distance of almost four light-years across the sky. These outflows are even colder than the cosmic microwave background, reaching temperatures below 270 C. The outflows are also expanding at a speed of 590 000 kilometres per hour. Link NRAO press release

Image Source: https://www.eso.org/public/images/potw1724a/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
Boomerang Nebula
Subject - Milky Way
Nebula » Type » Planetary

Distance

Universescale1
5,000 light years
Eso_potw1724a_128
 

Position Details

Position (ICRS)
RA = 12h 44m 46.1s
DEC = -54° 31’ 12.9”
Orientation
North is 0.1° CCW
Field of View
0.4 x 0.4 arcminutes
Constellation
Centaurus

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_purple Hubble Space Telescope (ACS) Optical (V) 606.0 nm
Arrow_left_luminosity Hubble Space Telescope (ACS) Optical (V) 606.0 nm
Arrow_left_orange Atacama Large Millimeter/submillimeter Array (Band 7) Radio (12CO) 880.0 µm
Spectrum_ir1
Arrow_top_purple
Arrow_top_luminosity
Arrow_top_orange
Eso_potw1724a_1280
×
ID
potw1724a
Subject Category
B.4.1.3  
Subject Name
Boomerang Nebula
Credits
ALMA (ESO/NAOJ/NRAO)/R. Sahai
Lightyears
5,000
Redshift
Reference Url
https://www.eso.org/public/images/potw1724a/
Type
Observation
Image Quality
Good
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Atacama Large Millimeter/submillimeter Array
Instrument
ACS, ACS, Band 7
Color Assignment
Purple, Luminosity, Orange
Band
Optical, Optical, Radio
Bandpass
V, V, 12CO
Central Wavelength
606, 606, 880000
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
191.19208812, -54.5202408644
Reference Dimension
1762.0, 1762.0
Reference Pixel
881.0, 881.0
Scale
-3.48224979076e-06, 3.48224979076e-06
Rotation
0.059999999999999984
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.org
Name
NRAO/AUI/NSF
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
potw1724a
Metadata Date
2017-05-26T10:12:37-04:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

 

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Universescalefull
5,000 light years