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