Chitral Astronomical Society

Chitral Astronomical Society

Skies over the Hindu Kush

Encyclopedia

Deep-Sky Object

Low-ionization Structure (LIS)

Shell of ionized gas expelled by a dying low-to-intermediate-mass star.

Low-ionization Structure (LIS) — Shell of ionized gas expelled by a dying low-to-intermediate-mass star. (Section: PLANETARY NEBULAE.)

Overview

Low-ionization Structure (LIS) — Shell of ionized gas expelled by a dying low-to-intermediate-mass star. (Section: PLANETARY NEBULAE.)

See also

Round Planetary Nebula

Shell of ionized gas expelled by a dying low-to-intermediate-mass star.

Elliptical Planetary Nebula

Shell of ionized gas expelled by a dying low-to-intermediate-mass star.

Bipolar Planetary Nebula

Shell of ionized gas expelled by a dying low-to-intermediate-mass star.

Multipolar Planetary Nebula

Shell of ionized gas expelled by a dying low-to-intermediate-mass star.

Quadrupolar Planetary Nebula

Shell of ionized gas expelled by a dying low-to-intermediate-mass star.

Point-symmetric Planetary Nebula

Shell of ionized gas expelled by a dying low-to-intermediate-mass star.