Overview

The Pelican Nebula, catalogued as IC 5067 and IC 5070, is a bright emission cloud often called the "Pelican" because its dark lanes and glowing gas resemble a bird's head. It lies in the rich star fields near Deneb within the Cygnus region of the sky and is part of a large complex of nebulae in that area. The gas in the Pelican is ionized, so it is classed as an H II region, and its distance from Earth is commonly given as about 1,800 light‑years. It is also located within the boundaries of the constellation Cygnus.

Structure and appearance

Visually the nebula combines bright emission, dark obscuring dust lanes and pockets of reflection. IC 5067 and IC 5070 are close together and often treated as a single object; their contrast against the surrounding dark molecular cloud creates the familiar pelican outline. Narrowband images emphasize hydrogen alpha and oxygen emission lines, revealing filaments, pillars and cavities carved by stellar winds and radiation.

Star formation and physical characteristics

The Pelican is an active star‑forming region. Dense clumps of molecular gas collapse to form young stellar objects, while jets and outflows from newly formed stars produce Herbig–Haro objects and shock fronts. Much of the visible glow comes from recombination of hydrogen after ionization by nearby hot, young O and B stars; longer wavelengths (infrared and radio) penetrate the dust and expose embedded protostars and cold molecular material.

Observation and significance

A popular target for amateur and professional astronomers, the Pelican is striking through H‑alpha and narrowband filters and often photographed alongside the nearby North America Nebula (NGC 7000). Its proximity and relatively high surface brightness make it useful for studying the interplay between massive stars and their natal clouds, and for investigating early stages of stellar evolution.

History and cataloguing

The Pelican entered modern catalogs as IC 5067 and IC 5070 in the Index Catalogue, which extends the 19th‑century New General Catalogue (NGC). Since its cataloguing it has been the subject of multiwavelength research that combines optical imaging with infrared and radio surveys to map dust, gas and young stellar populations.

Notable facts

  • It lies adjacent to the North America Nebula, separated by a dark dust lane; together they form part of a larger Cygnus star‑forming complex.
  • Studies across different wavelengths reveal embedded protostars that are invisible in optical light but prominent in infrared and radio maps.
  • The region demonstrates common processes in H II regions: ionization by hot stars, sculpting by winds, and triggered star formation in compressed gas.

For further summaries and observational details, see resources linked to the region's classification and location: H II region overview, Cygnus sky region, constellation information, and distance references at 1,800 ly.