Light Echo Illuminates Dust Around Supergiant Star V838 Monocerotis (V838 Mon)

Stsci_2004-10a_1024

stsci_2004-10a March 4th, 2004

Credit: NASA and The Hubble Heritage Team (AURA/STScI)

"Starry Night," Vincent van Gogh's famous painting, is renowned for its bold whorls of light sweeping across a raging night sky. Although this image of the heavens came only from the artist's restless imagination, a new picture from NASA's Hubble Space Telescope bears remarkable similarities to the van Gogh work, complete with never-before-seen spirals of dust swirling across trillions of miles of interstellar space. This image, obtained with the Advanced Camera for Surveys on February 8, 2004, is Hubble's latest view of an expanding halo of light around a distant star, named V838 Monocerotis (V838 Mon). The illumination of interstellar dust comes from the red supergiant star at the middle of the image, which gave off a flashbulb-like pulse of light two years ago. V838 Mon is located about 20,000 light-years away from Earth in the direction of the constellation Monoceros, placing the star at the outer edge of our Milky Way galaxy. Called a light echo, the expanding illumination of a dusty cloud around the star has been revealing remarkable structures ever since the star suddenly brightened for several weeks in early 2002. Though Hubble has followed the light echo in several snapshots, this new image shows swirls or eddies in the dusty cloud for the first time. These eddies are probably caused by turbulence in the dust and gas around the star as they slowly expand away. The dust and gas were likely ejected from the star in a previous explosion, similar to the 2002 event, which occurred some tens of thousands of years ago. The surrounding dust remained invisible and unsuspected until suddenly illuminated by the brilliant explosion of the central star two years ago. The Hubble telescope has imaged V838 Mon and its light echo several times since the star's outburst in January 2002, in order to follow the constantly changing appearance of the dust as the pulse of illumination continues to expand away from the star at the speed

Provider: Space Telescope Science Institute

Image Source: https://hubblesite.org/contents/news-releases/2004/news-2004-10

Curator: STScI, Baltimore, MD, USA

Image Use Policy: http://hubblesite.org/copyright/

Image Details Image Details

Image Type
Observation
Object Name
V838 Monocerotis
Subject - Milky Way
Nebula > Appearance > Reflection > Light Echo
Star > Type > Variable > Nova

Distance Details Distance

Universescale1
20,000 light years
Stsci_2004-10a_128
 

Position Details Position Details

Position (ICRS)
RA = 7h 4m 5.1s
DEC = -3° 50’ 49.9”
Orientation
North is 48.8° CCW
Field of View
2.4 x 2.6 arcminutes
Constellation
Monoceros

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Blue Hubble (ACS/WFC) Optical (B) 435.0 nm
Green Hubble (ACS/WFC) Optical (V) 606.0 nm
Red Hubble (ACS/WFC) Optical (I) 814.0 nm
Spectrum_base
Blue
Green
Red
Stsci_2004-10a_1280
×
ID
2004-10a
Subject Category
B.4.2.2.1   B.3.2.1.5  
Subject Name
V838 Monocerotis
Credits
NASA and The Hubble Heritage Team (AURA/STScI)
Release Date
2004-03-04T00:00:00
Lightyears
20,000
Redshift
20,000
Reference Url
https://hubblesite.org/contents/news-releases/2004/news-2004-10
Type
Observation
Image Quality
Good
Distance Notes
Distance in lightyears
Facility
Hubble, Hubble, Hubble
Instrument
ACS/WFC, ACS/WFC, ACS/WFC
Color Assignment
Blue, Green, Red
Band
Optical, Optical, Optical
Bandpass
B, V, I
Central Wavelength
435, 606, 814
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
2000.0
Reference Value
106.02124594167, -3.84720496404
Reference Dimension
2238.00, 2448.00
Reference Pixel
1159.05779919863, 1211.02727539140
Scale
-0.00001786842, 0.00001786842
Rotation
48.76327788816
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
World Coordinate System resolved using PinpointWCS 0.9.2 revision 218+ by the Chandra X-ray Center FITS X FITS Y EPO X EPO Y 780.89 781.11 982.95 1820.13 603.54 1121.21 1578.55 1803.47 900.71 1089.53 1316.16 1424.45 782.43 1210.12 1564.02 1493.66 1234.78 1455.10 1560.46 695.02 1547.87 905.55 581.29 681.80 Center Pixel Coordinates: 1119.00 106.02153032646 1224.00 -3.84649850372
Creator (Curator)
STScI
URL
http://hubblesite.org
Name
Space Telescope Science Institute Office of Public Outreach
Email
outreach@stsci.edu
Telephone
410-338-4444
Address
3700 San Martin Drive
City
Baltimore
State/Province
MD
Postal Code
21218
Country
USA
Rights
http://hubblesite.org/copyright/
Publisher
STScI
Publisher ID
stsci
Resource ID
STSCI-H-p0410a-f-2238x2448.tif
Resource URL
https://mast.stsci.edu/api/latest/Download/file?uri=mast:OPO/product/STSCI-H-p0410a-f-2238x2448.tif
Related Resources
http://hubblesite.org/newscenter/archive/releases/2004/10
Metadata Date
2022-07-06T00:00:00
Metadata Version
1.2
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Detailed color mapping information coming soon...

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Universescalefull
20,000 light years

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