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Planetary Nebula HDW 3

7 Noviembre 2013

This image of Hartl-Dengel-Weinberger 3 (HDW 3) was obtained with the wide-field view of the Mosaic camera on the Mayall 4-meter telescope at Kitt Peak National Observatory. The distinctive braided shape of this large, ancient planetary nebula is the result of the planetary nebula colliding with the interstellar gas around it as the nebula moves through the galaxy.