Stephan's Quintet

 Stephan's Quintet

Galaxy group Stephan's Quintet is located in the constellation Pegasus.

Credits

NASA, ESA, and the Hubble SM4 ERO Team

About The Object
Object Name Stephan's Quintet, HCG 92
Object Description Interacting Galaxy Group
R.A. Position 22h 35m 57.5s
Dec. Position 33° 57' 35.67"
Constellation Pegasus
Distance Stephan's Quintet is 290 million light-years (90 million parsecs) away. The foreground, superposed NGC 7320 is 40 million light-years (12 million parsecs) away.
About The Data
Data Description The Hubble images were created from data from proposal : K. Noll and M. Livio (STScI), D. Leckrone and M. Niedner (NASA/GSFC), and Z. Levay and M. Mutchler (STScI). Acknowledgments for Stephan's Quintet Observers: K. Noll and M. Livio (STScI), D. Leckrone and M. Niedner (NASA/GSFC), and Z. Levay and M. Mutchler (STScI) Data Analysis: H. Bushouse, J. Anderson, and M. Mutchler (STScI) Image Composition: Z. Levay and L. Frattare (STScI) Text: D. Weaver and R. Villard (STScI) Illustrations: Z. Levay (STScI) Video: G. Bacon (STScI) Science Consultants: M. Livio and B. Whitmore (STScI)
Instrument HST>WFC3/IR and HST>WFC3/UVIS
Exposure Dates July/August, 2009, Exposure Time: 23 hours
Filters WFC3/IR: F140W (JH) WFC3/UVIS: F438W (B), F606W (V), F657N (H-alpha + [N II]), F665N (H-alpha + [N II]), and F814W (I)
About The Image
Color Info The image is a composite of separate exposures made by the WFC3 instrument on the Hubble Space Telescope. Six filters were used to sample broad and narrow wavelength ranges. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Blue: F438W (B) Green: F606W (V) Red: F140W (JH) + F657N (H-alpha + [N II]) + F665N (H-alpha + [N II]) + F814W (I)
About The Object
Object Name A name or catalog number that astronomers use to identify an astronomical object.
Object Description The type of astronomical object.
R.A. Position Right ascension – analogous to longitude – is one component of an object's position.
Dec. Position Declination – analogous to latitude – is one component of an object's position.
Constellation One of 88 recognized regions of the celestial sphere in which the object appears.
Distance The 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.
Dimensions The physical size of the object or the apparent angle it subtends on the sky.
About The Data
Data Description
  • Proposal: 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.
Instrument The science instrument used to produce the data.
Exposure Dates The date(s) that the telescope made its observations and the total exposure time.
Filters The camera filters that were used in the science observations.
About The Image
Image Credit The primary individuals and institutions responsible for the content.
Publication Date The date and time the release content became public.
Color Info A brief description of the methods used to convert telescope data into the color image being presented.
Orientation The rotation of the image on the sky with respect to the north pole of the celestial sphere.