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NGC 4438
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.12h 27m 45.91s
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.13° 0' 32.29"
- 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.About 16 Mpc (50 million light-years)
- DimensionsDimensionsThe physical size of the object or the apparent angle it subtends on the sky.The detailed image is 32 arcseconds (about 2500 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.Principal Astronomer: J. Kenney (Yale University) - 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.March 24, 1999, Exposure Time: 4 hours
- FiltersFiltersThe camera filters that were used in the science observations.F814W (I), F675W (R), F450W (B), F656N (H-alpha), F658N ([N II])
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.NGC 4438, Arp 120
- Object DescriptionObject DescriptionThe type of astronomical object.Peculiar Galaxy
- Release DateJune 5, 2000
- Science ReleaseFeasting Black Hole Blows Bubbles
- CreditNASA and Jeffrey Kenney and Elizabeth Yale (Yale University)
Related Images & Videos

Feasting Black Hole Blows Bubbles from Galaxy NGC 4438
A monstrous black hole's rude table manners include blowing huge bubbles of hot gas into space. At least, that's the gustatory practice followed by the supermassive black hole residing in the hub of the nearby galaxy NGC 4438. Known as a peculiar galaxy because of its unusual...
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Last Updated
Mar 14, 2025
Contact
Media
Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov