Harold Corwin

IC 429, a small cometary nebula found by Javelle, is indeed involved in IC 430 (which see) as supposed by Dreyer. Javelle actually saw and measured only the "head" of the nebula, while the fainter "tail" stretches off about an arcminute to the southeast; IC 430 picks up from there, extending another 10+- arcminutes to HD 37507 = d Ori. This is reasonable, recalling that Javelle was observing with a 30-inch F23 refractor. The fainter nebula would show up on photographs, but not at the eyepiece of an F23 telescope.

Modern identifications of this nebula include PP37, V883 Ori, and Haro 4-13a (my thanks to Dave Riddle for this information). It is part of the star formation complex around the Orion Nebula (M 42 = NGC 1976).

― IC Notes by Harold Corwin

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

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