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About this Object

Object Name:

NGC 4449

Object Description:

Magellanic dwarf irregular galaxy

Position (J2000):

R.A. 12h 28m 10s.96
Dec. +44° 05' 33".4

Constellation:

Canes Venatici

Distance:

Approximately 12.5 million light-years (4 Mpc) away.

Dimensions:

This image is 5 arcminutes (19,000 light-years or 6 kiloparsecs) wide.

About the Data

Data Description:

The Hubble image was created from HST data from proposal 10585: A. Aloisi (STScI/ESA), F. Annibali, C. Leitherer, and J. Mack (STScI), M. Sirianni (STScI/ESA), M. Tosi (INAF, Astronomical Observatory of Bologna), and R. van der Marel (STScI).

Instrument:

ACS/WFC

Filters:

F435W (B), F555W (V), F658N (Halpha+[N II]), and F814W (I)

Exposure Date:

November 2005

Exposure Time:

5.3 hours

About this Image

Image Credit:

NASA, ESA, A. Aloisi (STScI/ESA) and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration

Release Date:

July 3, 2007

Color:

This image is a composite of many separate exposures made by the ACS instrument on the Hubble Space Telescope using several different filters. Three filters were used to sample broad wavelength ranges. One filter was used to sample narrow wavelength emission. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:

F435W (B)

blue

F555W (V)

green

F658N (Halpha+[N II]) and F814W (I)

red

Orientation/Scale: