Protoplanetary nebulae

#	Item
51	26 Jul[removed]:33 Add to Reading List Source URL: casa.colorado.edu Language: English - Date: 2011-09-29 22:13:44 Astrophysics Star formation Bipolar outflow Herbig–Haro objects Protoplanetary nebula Bow shock HH 34 Reipurth Polar jet Astronomy Nebulae Space
52	iau378.dvi Add to Reading List Source URL: www.spacetelescope.org Language: English - Date: 2010-09-02 10:44:38 Stellar evolution Local Group Spiral galaxies Nebulae Protoplanetary nebula IRAS 23166+1655 Milky Way Binary star Planetary nebula Astronomy Space Star types