共 50 条
- [22] A YOUNG PLANETARY-NEBULA WITH OH MOLECULES - NGC-6302 ASTROPHYSICAL JOURNAL, 1988, 326 (01): : 368 - &
- [23] SPECTROPHOTOMETRY OF THE PLANETARY NEBULA NGC-7027 ASTRONOMICAL JOURNAL, 1948, 53 (07): : 202 - 202
- [24] AN INFRARED DISK AT THE CENTER OF THE BIPOLAR PLANETARY-NEBULA NGC-6302 ASTROPHYSICAL JOURNAL, 1984, 281 (02): : L67 - &
- [27] IMAGING SPECTROPHOTOMETRY OF THE PLANETARY-NEBULA NGC-6720 (THE RING NEBULA) ASTRONOMICAL JOURNAL, 1994, 108 (05): : 1860 - 1871