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About this Object

Object Name:

Necklace Nebula, PN G054.2-03.4

Object Description:

Planetary Nebula 

Position (J2000):

R.A. 19h 43m 59s.50
Dec. +17° 09' 01".08

Constellation:

Sagitta

Distance:

About 15,000 light-years or 4,600 parsecs

Dimensions:

1.7 arcminutes (7.6 light-years or 2.3 parsecs) wide.

About the Data

Data Description:

This image was created from HST data from proposal 12675: K. Noll, Z. Levay, M. Livio, C. Christian, H. Bond, L. Frattare, M. Mutchler, T. Borders, and W. Januszewski (Hubble Heritage Team/STScI).

Instrument:

WFC3/UVIS

Filters:

F502N ([O III]), F438W (B), F656N  (H-alpha), F555W (V), F658N ([N II]), and F814W (I)

Exposure Date:

July 2, 2011

Exposure Time:

44 minutes

About this Image

Credit:

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

Release Date:

August 11, 2011

Color:

This image is a composite of many separate exposures made by the WFC3/UVIS instrument on the Hubble Space Telescope using six different filters, three broadband filters, and three narrowband filters. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:

F502N ([O III]) and F438W (B)

blue

F656N (H-alpha) and F555W (V)

green

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

red

Orientation/Scale: