IC 427
DSS image of IC 427
Overlaid DSS image of IC 427, 60' x 60' with north at top and west to the right

Aladin viewer for the region around IC 427

Type  Bright Nebula
Size  20'
Right Ascension  5h 36' 15"  (2000)
Declination  5° 22' 36" S
Constellation  Orion
Observing Notes

Harold Corwin

Williamina Fleming says of this, "A large patch of faint nebulosity, probably connected with [the Great Nebula in Orion]. NGC 1999 is near here, but the description given is unlike that of this object." NGC 1999 = H IV 33 is a "* 10, 11 in neb" at its place about 5-6 arcmin south-southeast of the center of IC 427. It must have appeared as a simple star on the Harvard plate.

IC 427 itself is about 10 arcminutes across, but is immersed in a much larger nebula roughly 25' x 20' that also includes NGC 1999, and is connected to IC 428.

See IC 434 for a bit more on this area and the IC nebulae here.
IC Notes by Harold Corwin
Other Data Sources for IC 427
Nearby objects for IC 427

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

A complete list of credits and sources can be found on the about page

IC 427