Iota Orionis Cluster - NGC 1980
DSS image of Iota Orionis Cluster
Overlaid DSS image of Iota Orionis Cluster, 30' x 30' with north at top and west to the right

Aladin viewer for the region around Iota Orionis Cluster
Iota Orionis Nebula
C 0532-059, OCl 529.0

Type  Open Cluster w/Nebulosity
Magnitude  2.5
Size  14' x 14'
Right Ascension  5h 35'  (2000)
Declination  5° 54' S
Constellation  Orion
Description  vF, vvL, 44 Ori invl
Classification  III 3 m n:
Observing Notes

Andrew Cooper
Sep 14, 2015    Hale Pohaku, HI (map)
15cm f/5 Newtonian, Makaʻiki @ 19x
Seeing: 8 Transparency: 6 Moon: 0%

A bright and coarse cluster just south of M42, a handful of brighter stars punctuate a rich starfield

Andrew Cooper
Feb 9, 2007    Waimea, HI (map)
76mm f/6 APO

A grand group of about a dozen stars around ι Ori (Σ752 2.75mg.), a nice double with a dimmer companion (6.36mg.), another nice double on the south side of the cluster (Σ747), a round haze surrounds ι some dimmer haze around Σ747, the cluster is on the south margin of M42 which is one field north.

Andrew Cooper
Jan 12, 2002    Las Cienegas NCA, Pima Co., AZ (map)
46cm f/4.5 Deep Violet

Faint nebulosity around several bright stars just south of the Orion complex

Rev. T.W. Webb
May 19, 1885    Hardwick, Herefordshire, England (map)

Iota Ori (Σ752) A glow with 5½-in. around this group, which E. of Rosse finds to occupy a singular dark opening, encompassed with neb. matter. Wa., minute pair between two brighter stars n in field - a test.
― Celestial Objects for Common Telescopes, T. W. Webb, 1917

Captain William Henry Smyth
Feb 17, 1832    No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827

[From entry CCXVIII for ι Ori] There is a glow about this object, when viewed under favouring circumstances; yet I cannot assert that the nebulosity in which it is enveloped, is clearly seen. But under proper means it is well worth scrutiny; for nebulous stars are certainly among the most remarkable objects in the heavens, and perhaps should be distinguished from stellar nebulæ in being of a less doubtful character, as to the state of condensation, the central matter in such being suddenly vivid, and sharply defined.
― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
Other Data Sources for Iota Orionis Cluster
Nearby objects for Iota Orionis Cluster
23 objects found within 60'
Hatysa HD 36959 HD 36960
HD 37209 HD 37303 HD 37481
IC 427 IC 428 LDN1641
Messier 43 NGC 1999 Orion Nebula
Theta1 Orionis A Theta1 Orionis B Theta1 Orionis C
Theta1 Orionis D Theta1 Orionis E Theta1 Orionis F
Theta2 Orionis Theta2 Orionis A Theta2 Orionis B
Theta2 Orionis C Trapezium
Credits...

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

Iota Orionis Cluster