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Type: galaxy (in group), S0
Mag: B=10, V=?
Size: 5.37′ x 2.754′
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NGC 3384 is probably also NGC 3371, which see.
Synonyms: H I-018
Doig, P. (1925) Notes on the nebulae and clusters in Webb's 'Celestial Objects for Common Telescopes' (Sixth edition, Vol.ii). Part II. M.N.R.A.S., 35(8), 280.
by Jim Lucyk: Sky&Tel. 4/80 p350, Observer's Guide (Astro Cards) 3-4/88 p25.
Sandage, A. & Tammann, G. A. (1975) Steps toward the Hubble constant. V - The Hubble constant from nearby galaxies and the regularity of the local velocity field. ApJ, 196, 313-328. [1975ApJ...196..313S]
(1975, Astrophysical Journal, 196, 313-328) includes this galaxy in the Leo Group. Members include NGC 3338, NGC 3351, NGC 3368, NGC 3377, NGC 3379, NGC 3384, NGC 3389, NGC 3412, NGC 3489, NGC 3593, NGC 3596, NGC 3605, NGC 3607, NGC 3608, NGC 3623, NGC 3626, NGC 3627, NGC 3628, NGC 3686 & NGC 3810.
(Sulentic and Tifft 1973) notes that this is a 11.5 mag galaxy. Their coded description reads BE,EL,BM.
de Vaucouleurs, G. (1975) Nearby groups of galaxies. In: Kuiper, G. (ed) Stars and Stellar Systems. Volume 9: Galaxies and the Universe. Chapter 14, p557.
This is the major condensation in the Leo I cloud; it is centred on a dense core (3°x1.5°) including NGC 3351 (M95), NGC 3368 (M96), 3377 3377A 3379 3384 and NGC 3412.
Notes: "This object forms a right angle with two other nebulae, about 7' away, and stars in the field make a fine contrast. Two of the nebulae are bright and almost round, 1.5' - 2' across; the third is a faint ellipse 2' x 1' in pa 120 deg. 10.5cm shows two of these without difficulty."
The three objects in this grouping are NGC 3381, 3384 and NGC 3389.
writes: "M105 [NGC 3379] forms a small triangle about 8' on a side with two galaxies east of it, NGC 3384 and NGC 3389."
Coe, in "SACNEWS On-Line for April 1996", using a 12.5" f/6, notes: NGC 3384 is pretty faint, Large, somewhat elongated and does not have a brighter middle in the 12.5".
7x35mm - not vis. BS, 29Apr1992, TSP.
7cm - 2nd brtst in M105 trio. circ w/wk broad concen to *ar nuc which stands out in rel f halo. BS, 12Apr1992, Anderson Mesa.
Observing site: Pinnacles overlook
[10h 48m 18s, 12° 38m 0s] A grand view, as M105 and NGC 3389 are in the same field
The Messier objects
The Bennett objects
The Caldwell list
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