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About this Object

Object Description:

Bok Globules in NGC 281

Position (J2000):

R.A. 00h 53m 04s.59
Dec. +56° 38' 18".01

Constellation:

Cassiopeia

Distance:

9,500 light-years (2.9 kiloparsecs)

Dimensions:

This image is roughly 2.4 arcminutes (6.5 light-years or 2 parsecs) wide.

About the Data

Data Description:

This image was created from HST data from proposal 10713 K. Noll, H. Bond, C. Christian, L. Frattare, F. Hamilton, Z. Levay, M. Mutchler, W. Januszewski, and T. Royle (Hubble Heritage Team/STScI/AURA) and P. McCullough (STScI).

Instrument:

ACS/WFC

Exposure Date:

October 31, 2005

Exposure Time:

2.1 hours

Filters:

F435W(B), F555W(V), F658N (H-alpha), F814W(I)

About this Image

Image Credit:

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

Release Date:

April 4, 2006

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 sample broad wavelength ranges, one isolates the light of hydrogen. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:
F658N (Hydrogen-alpha) red/orange
F814W (I) red
F555W (V) green
F435W (B) blue

Orientation/Scale: