This is the red image.
You may also see images at other wavelengths by clicking on the colorbar at a point above any of the dashed arrows (which point to other regions of the spectrum at which images are available). The solid arrow shows the spectral region you are seeing now. This is not intended to be a linear scale in wavelength, but only a rough guide to the wavelength of the observation.
This group of stars is a small star forming aggregate in the southern part of the L1641 molecular cloud. It was initially studied by Cohen and Kuhi in 1979 in their monumental study of the then known pre-main-sequence stars in the local neighborhood. It has since been studied by Strom, Strom and Merrill in their infrared imaging study of L1641. Further work on this group was done by Lori Allen in her Ph.D. thesis.
This is an optical CCD image taken through a red filter having an effective wavelength near 6500 Å. You can easily see that the 4 (or 5) stars within this group which appear very red in the near infrared color image cannot be seen on this image. Also, the brighter stars in this group illuminate substantial reflection nebulae within the cloud.
If you wish more information about these images, a page is available for your perusal. You may also return to the overview page.
References
Cohen, M.H. & Kuhi, L.V. 1979, ApJ Suppl, 41, 743
Strom, K.M., Strom, S.E. & Merrill, K.M. 1993, ApJ, 412, 233
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© 2000
CO map