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Quasar 3C 273
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.12h 29m 6.7s
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.02° 3' 9.0"
- ConstellationConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.Virgo
- 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.1.9 billion light-years (580 megaparsecs)
- DimensionsDimensionsThe physical size of the object or the apparent angle it subtends on the sky.The ACS image is roughly 30 arcseconds (275 kly or 85 kiloparsecs) in width.
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.Principal Astronomers, WFPC2 data: J. Bahcall (IAS)
- InstrumentInstrumentThe science instrument used to produce the data.HST>WFPC2
- Exposure DatesExposure DatesThe date(s) that the telescope made its observations and the total exposure time.June 4, 1994, Exposure Time: 30 minutes
- FiltersFiltersThe camera filters that were used in the science observations.F606W (V)
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.3C 273
- Object DescriptionObject DescriptionThe type of astronomical object.Quasar
- Release DateJanuary 9, 2003
- Science ReleaseHubble Probes the Heart of a Nearby Quasar
- CreditNASA and J. Bahcall (IAS)
Related Images & Videos

Hubble Probes the Heart of a Nearby Quasar
NASA Hubble Space Telescope's new Advanced Camera for Surveys (ACS) has provided the clearest visible-light view yet of the nearby quasar 3C 273. The ACS' coronagraph was used to block the light from the brilliant central quasar, revealing that the quasar's host galaxy is...
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Last Updated
Mar 28, 2025
Contact
Media
Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov