[M73, KPNO 0.9-m]

Messier 73, the group or asterism of four stars in Aquarius, as photographed with the Kitt Peak 0.9-meter telescope in July 1997, during the Research Experiences for Undergraduates (REU). The reddish color of the brightest star is evident, also the yellow-red color of the westernmost (right) star. This color gives rise to the suspicion that the stars may be giants and the brightest members of a very poor cluster, or cluster remnant, a hypothesis which still needs to be confirmed or falsified by future investigation.
Credit: REU program/NOAO/AURA/NSF

  • Hi-res version of this image (648 kB jpg)
  • More information on this image (N.A. Sharp, NOAO)
  • More NOAO images

    [M73 in IR, 2MASS]

    The four-star group M73, imaged in the infrared with the 2MASS telescopes. This 2MASS Atlas image uses a false-color mapping of infrared wavelength bands to colors, showing coolest objects red and hottest blue.

  • More 2MASS IR images

  • Amateur images of M73

    Hartmut Frommert
    Christine Kronberg

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    Last Modification: 8 Sep 2001