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About this Object

Object Name:

PN K 4-55, Kohoutek 4-55, PN G084.2+01.0

Object Description:

Planetary Nebula

Position (J2000):

R.A. 20h 45m 10s.02
Dec. +44° 39' 14".58




4,600 light-years (1.4 kiloparsecs)


This image is roughly 61 arcseconds (1.5 light-years or 0.47 parsec) wide.

About the Data

Data Description:

The image was created from Hubble data from proposal 11956: K. Noll, Z. Levay, M. Mutchler, L. Frattare, M. Livio, W. Januszewski, C. Christian, F. Hamilton, and H. Bond (Hubble Heritage Team/STScI). R. Sahai and J. Trauger (JPL) consulted on the target.



Exposure Dates:

May 4, 2009


F502N ([O III]), F656N (H-alpha), and F658N ([N II])

Exposure Time:

2 hours

About this Image

Image Credit:

NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

Release Date:

May 10, 2009


The image is a composite of separate exposures made by the WFPC2 instrument on the Hubble Space Telescope. Three filters were used to sample narrow wavelength ranges. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:

F658N ([N II]) red
F656N (H-alpha) green
F502N ([O III]) blue


compass file