NGC 4444 explained

NGC 4444
Type:	SAB(rs)bc
Epoch:	J2000
Z:	0.009771
H Radial V:	2915 km/s
Dist Ly:	^[1]
Constellation Name:	Centaurus
Names:	^[2]

NGC 4444 is an intermediate spiral galaxy in the constellation Centaurus. The morphological classification places it midway on the continuum between a barred spiral (SB) and an unbarred spiral (SA), with an inner region that lies between a ring-like (r) and a purely spiral form (s), and medium- (b) to loosely wound (c) outer spiral arms. This makes it a hybrid ringed, barred spiral galaxy.^[3] It has an angular size of ^[4] and the estimated mass M is given log M = 9.76, yielding solar masses.^[5]

Notes and References

1. Web site: Distance Results for NGC 4444 . NASA/IPAC Extragalactic Database . 2011-05-11.
2. NGC 4444. 2021-02-04.
3. Web site: William C. . Keel . August 2009 . Galaxy Classification . Galaxies and the Universe . 2011-05-20 .
4. 10.1086/498708 . Skrutskie . Michael F. . Cutri . Roc M. . Stiening . Rae . Weinberg . Martin D. . Schneider . Stephen E. . Carpenter . John M. . Beichman . Charles A. . Capps . Richard W. . Chester . Thomas . Elias . Jonathan H. . Huchra . John P. . Liebert . James W. . Lonsdale . Carol J. . Monet . David G. . Price . Stephan . Seitzer . Patrick . Jarrett . Thomas H. . Kirkpatrick . J. Davy . Gizis . John E. . Howard . Elizabeth V. . Evans . Tracey E. . Fowler . John W. . Fullmer . Linda . Hurt . Robert L. . Light . Robert M. . Kopan . Eugene L. . Marsh . Kenneth A. . McCallon . Howard L. . Tam . Robert . Van Dyk . Schuyler D. . Wheelock . Sherry L. . The Two Micron All Sky Survey (2MASS) . The Astronomical Journal . 1 February 2006 . 131 . 2 . 1163–1183 . 2006AJ....131.1163S . 18913331 . 0004-6256 . free .
5. The 1000 Brightest HIPASS Galaxies: H I Properties . Koribalski . B. S. . etal . The Astronomical Journal . 128 . 1 . 16 - 46 . July 2004 . 10.1086/421744 . 2004AJ....128...16K . astro-ph/0404436 . 16229767 .