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HST WFC3 Image of Supernova 1993J
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.09h 55m 24.78s
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.69° 1' 13.68"
- ConstellationConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.Ursa Major
- 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.11 million light-years (3,600,000 parsecs)
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.Note: The wide-field image of M81 was released on May 28, 2007. ACS/WFC data from proposal 10584 (PI: A. Zezas (Harvard-Smithsonian Center for Astrophysics)) was combined into a BVI color-composite image. Hubble data for this release of SN 1993J were obtained from proposal 12531: A. Filippenko (University of California, Berkeley), P. Chandra (Pune University, India), R. Chevalier (University of Virginia), V. Dwarkadas (University of Chicago), C. Fransson (Stockholm University), W. Li (University of California, Berkeley) T. Matheson (NOAO), J. Silverman (University of Texas, Austin), N. Smith (Steward Observatory), and S. Van Dyk (Caltech). The science team comprises: O. Fox (University of California, Berkeley), A. Bostroem (STScI), S. Van Dyk (Caltech), A. Filippenko (University of California, Berkeley), C. Fransson (Stockholm University), T. Matheson (NOAO), S. Cenko (University of California, Berkeley, and NASA/GSFC), P. Chandra (Pune University, India), V. Dwarkadas (University of Chicago), W. Li and A. Parker (University of California, Berkeley), and N. Smith (Steward Observatory). - InstrumentInstrumentThe science instrument used to produce the data.HST>WFC3/UVIS
- Exposure DatesExposure DatesThe date(s) that the telescope made its observations and the total exposure time.December 24, 2011
- FiltersFiltersThe camera filters that were used in the science observations.F438W (B), F555W (V), and F625W (r)
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.SN 1993J, Supernova 1993J
- Object DescriptionObject DescriptionThe type of astronomical object.Supernova in M81
- Release DateSeptember 9, 2014
- Science ReleaseHubble Finds Companion Star Hidden for 21 Years in a Supernova’s Glare
- CreditsNASA, ESA, and O. Fox (University of California, Berkeley), A. Bostroem (STScI), S. Van Dyk (Caltech), A. Filippenko (University of California, Berkeley), C. Fransson (Stockholm University), T. Matheson (NOAO), S. Cenko (University of California, Berkeley, and NASA/GSFC), P. Chandra (National Center for Radio Astrophysics/Pune University, India), V. Dwarkadas (University of Chicago), W. Li and A. Parker (University of California, Berkeley), and N. Smith (Steward Observatory)
This image of SN 1993J is a composite of separate exposures acquired by the ACS/WFC instrument. Several filters were used to sample various wavelengths. The color results from assigning different hues (colors) to each monochromatic (grayscale) image as follows: Blue: F438W (B) Green: F555W (V) Red: F625W (r)
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Artist's Impression of Supernova 1993J
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Scenario for Type IIb SN 1993J
This illustration shows the key steps in the evolution of a Type IIb supernova. Panel 1: Two very hot stars orbit about each other in a binary system. Panel 2: The slightly more massive member of the pair evolves into a bloated red giant and spills the hydrogen in its outer...
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Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov
