Compass and Scale Image of Arp 274

 Compass and Scale Image of Arp 274

Credits

Illustration: NASA, ESA, and Z. Levay (STScI);
Photo: NASA, ESA, M. Livio and the Hubble Heritage Team (STScI/AURA)

About The Object
Object Name Arp 274, NGC 5679
Object Description Triple galaxy system
R.A. Position 14h 35m 8.82s
Dec. Position 05° 21' 30.79"
Constellation Virgo
Distance 400 million light-years or 120 megaparsecs
Dimensions The image is nearly 2 arcminutes (216,000 light-years) wide.
About The Data
Data Description The Hubble images were created from HST data from proposals : M. Livio (STScI), Z. Levay, L. Frattare, K. Noll, M. Mutchler, and W. Januszewski (Hubble Heritage Team/STScI).
Instrument HST>WFPC2
Exposure Dates April 1 - 2, 2009
Filters F450W (B), F606W (V), F673N (redshifted H-alpha), and F814W (I)
About The Image
Color Info The image is a composite of separate exposures made by the WFPC2 instrument on the Hubble Space Telescope. Three filters were used to sample broad wavelength ranges. One filter was used to sample narrowband emission. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Red: F673N (redshifted H-alpha) + F814W (I) Green: F606W (V) Blue: F450W (B)
Compass Image Compass and Scale Image of Arp 274
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.