Hubble space telescope imaging of Herbig−Haro object no. 2

Images of Herbig-Haro Object No. 2 obtained with the Planetary Camera of the Hubble Space Telescope are presented and discussed. The images, obtained in the emission lines of Hα, [S II], and [O III] at a scale of 0.044 arcsec pixel −1 , have been registered to within 11 milliarcsec and the spherically aberrated images have been restored with the Richardson-Lucy algorithm. The A and H complexes in HH 2, which appear as somewhat extended (2″-3″), amorphous features on ground-based images, are found to resolve into a rich array of structures with sizes in the range 0.2″-0.4″, embedded within faint extended emission. A wide range of excitation is evident throughout each complex