Technical facts about this news release:
| About the Object |
| Object Name: |
Pismis 24, NGC 6357, Cl Pismis 24 |
| Object Description: |
Open Star Cluster and Emission Nebula |
| Position (J2000): |
R.A. 17h 25m 24s.00
Dec. -34° 26' 0."0 |
| Constellation: |
Scorpius |
| Distance: |
About 8,000 light-years (2,500 parsecs) |
| Dimensions: |
The width of the largest component of the release image (see "Orientation/Scale" image below) is 2.4 arcminutes (6 light-years or 1.75 parsecs). |
|
| About the Data |
| Data Description: |
This image was created from HST data from the following proposal 10602: J. Maiz-Apellaniz (Instituto de Astrofísica de Andalucía, Spain), N. Walborn and E. Nelan (STScI), N. Morrell Carnegie Institution of Washington), and V. Niemela (Universidad Nacional de La Plata); 9857: O. De Marco (American Museum of Natural History), C. R. O'Dell (Vanderbilt University), and R. Rubin (NASA Ames Research Center); and proposal 9091: J. Hester, P. Scowen, and K. Healy, (Arizona State University). |
| Instrument: |
ACS/WFC, ACS/HRC, WFPC2 |
| Exposure Date(s): |
April 2002 and April 2006 |
| Filters: |
F550W (V), F547M (Strömgren y), F656N (Halpha), F658N (Halpha+[N II]), F850LP (SDSS i) |
|
| About the Image |
| Image Credit: |
NASA, ESA, and J. Maíz Apellániz
Instituto de Astrofísica
de Andalucía, Spain |
| Release Date: |
December 11, 2006 |
| Color: |
This image is a composite of many separate exposures made by the
ACS and WFPC2 instruments on the Hubble Space Telescope using several
different filters. Five filters were used to sample both broad and
narrow wavelength ranges. The color results from assigning different
hues (colors) to each monochromatic image. In this case, the assigned
colors are:
Blue:
F550W (V) + F547M (Strömgren y)
Red:
F656N (Halpha) + F658N (Halpha+[N II]) + F850LP (SDSS i) |
| Orientation/Scale: |
 |
|
