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Light Echoes From Red Supergiant Star V838 Monocerotis – September 2002
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.07h 4m 4.99s
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.-3° 50' 50.0"
- ConstellationConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.Monoceros
- DistanceDistanceThe physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.The star is ~20,000 light-years (~6 kiloparsecs) away.
- DimensionsDimensionsThe physical size of the object or the apparent angle it subtends on the sky.The top image is 82 arcseconds (7.8 light-years or 2.4 parsecs) wide.
About the Data
- Data DescriptionData DescriptionProposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.These data are from the HST program 10392: K. Noll, H. Bond, C. Christian, L. Frattare, F. Hamilton, Z. Levay, M. Mutchler, and T. Royle (STScI). - InstrumentInstrumentThe science instrument used to produce the data.HST>ACS/WFC
- Exposure DatesExposure DatesThe date(s) that the telescope made its observations and the total exposure time.September 2, 2002
- FiltersFiltersThe camera filters that were used in the science observations.F435W (B), F606W (V), F814W (I)
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.V838 Monocerotis
- Object DescriptionObject DescriptionThe type of astronomical object.Nova-like variable star and surrounding light echo
- Release DateFebruary 3, 2005
- Science ReleaseLight Continues to Echo Three Years After Stellar Outburst
- Credit
Blue: F435W (B) Green: F606W (V) Red: F814W (I)
Related Images & Videos
Flash From Star V838 Monocerotis Echoes Through Space
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The Expanding Light Echo of Red Supergiant Star V838 Monocerotis
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V838 Mon Light Echo Unveiling
A dissolve sequence of six images taken by Hubble's Advanced Camera for Surveys shows a CAT-scan-like probe of the three-dimensional structure of the shells of dust surrounding the aging star V838 Monocerotis. The sequence reveals dramatic changes in the way a brilliant flash of...
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Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov
