Technical facts about this news release:
| About the Object |
| Object Name: |
NGC 2440 |
| Object Description: |
Planetary Nebula in the Milky Way Galaxy |
| Position (J2000): |
R.A. 07h 41m 55.3s
Dec. -18° 12' 31" |
| Constellation: |
Puppis |
| Distance: |
Approximately 3,600 light-years (1,100 parsecs) |
| Dimensions: |
This image is roughy 1.2 arcminutes (1.3 light-years or 0.4 parsecs) wide. |
|
| About the Data |
| Data Description: |
The Hubble image was created from HST data from proposal 11090: K. Noll, H. Bond, C. Christian, L. Frattare, F. Hamilton, Z. Levay, M. Mutchler, and W. Januszewski (Hubble Heritage Team/STScI). |
| Instrument: |
WFPC2 |
| Exposure Date(s): |
February 6, 2007 |
| Filters: |
Narrow: F469N (He II), F502N ([O III]), F656N (H-alpha), F658N ([N II])
Broad: F439W (B), F555W (V), F675W (R) |
|
| About the Image |
| Image Credit: |
NASA, ESA, and K. Noll (STScI) |
| Release Date: |
February 13, 2007 |
| Color: |
This image is a composite of many separate exposures made by the WFPC2 instrument on the Hubble Space Telescope using several different filters. Three filters were used to sample broad wavelength ranges. Four filters were 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:
| F439W (B), F469N (He II), F502N ([O III]) |
blue |
| F555W (V), F656N (H-alpha) |
green |
| F658N ([N II]), F675W (R) |
red |
|
| Orientation/Scale: |
 |
|
