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A spiral galaxy is a type of galaxy characterized by a central bulge of old Population II stars surrounded by a rotating disc of younger Population I stars. A spiral galaxy maintains its spiral arms due to density wave theory.

Spiral galaxies

Below is a list of notable spiral galaxies with their own articles. The classification column refers to the galaxy morphological classification used by astronomers to describe galaxy structure.

Designation	Picture	Classification	Constellation	Apparent Magnitude
Comet Galaxy		S	Sculptor	18.7
ESO 97-G13, Circinus Galaxy		S	Circinus	11
ESO 510-G13		Sa: pec sp	Hydra	13.4
IC 342		SAB(rs)cd	Camelopardalis	9.1
IC 1296		SBbc	Lyra	14.8
ISOHDFS 27		Sab/Sbc	Tucana	20.51
IC 2163		SB(rs)c pec	Canis Major	11.6
IC 4970		SA0⁻ pec	Pavo	12.7
IC 5332		Sc	Sculptor	10.72
LEDA 100170, Dwingeloo 1		SB(s)cd	Cassiopeia	8.3
M31, Andromeda Galaxy		SA(s)b	Andromeda	4.36
M33, Triangulum Galaxy		SA(s)cd	Triangulum	6.3
M51a, Whirlpool Galaxy		SA(s)bc pec	Canes Venatici	9.0
M58		SAB(rs)b	Virgo	10.5
M61		SAB(rs)bc	Virgo	10.2
M63, Sunflower Galaxy		SA(rs)bc	Canes Venatici	9.3
M64, Black Eye Galaxy		(R)SA(rs)ab	Coma Berenices	9.4
M65		SAB(rs)a	Leo	10.3
M66		SAB(s)b	Leo	9.7
M74		SA(s)c	Pisces	9.95
M77		(R)SA(rs)b	Cetus	9.6
M81		SA(s)ab	Ursa Major	7.9
M83		SAB(s)c	Hydra	8.2
M88		SA(rs)b	Coma Berenices	10.4
M90		SAB(rs)ab	Virgo	10.3
M91		SBb(rs)	Coma Berenices	11.0
M94		SA(r)ab	Canes Venatici	9.0
M95		SB(r)b	Leo	11.4
M96		SAB(rs)ab	Leo	10.1
M98		SAB(s)ab	Coma Berenices	11
M99, Coma Pinwheel Galaxy		SA(s)c	Coma Berenices	10.4
M100		SAB(s)bc	Coma Berenices	10.1
M101, Pinwheel Galaxy		SAB(rs)cd	Ursa Major	8.3
M104, Sombrero Galaxy		SA(s)a	Virgo	9.0
M106		SAB(s)bc	Canes Venatici	9.1
M108		SB(s)cd	Ursa Major	10.7
M109		SB(rs)bc	Ursa Major	10.6
Maffei 2		SAB(rs)bc	Cassiopeia	16.0
Milky Way		SB(rs)bc	Sagittarius	N/A
NGC 1		SA(s)b	Pegasus	13.65
NGC 2		Sab	Pegasus	+15.0
NGC 17		Sc	Cetus	15.3
NGC 47	\|	SB(rs)bc	Cetus	13.5
NGC 247		SAB(s)d	Cetus	9.9
NGC 253, Sculptor Galaxy		SAB(s)c	Sculptor	8.0
NGC 262		S0a	Andromeda	13.1
NGC 300		SA(s)d	Sculptor	9.0
NGC 514		SAB(rs)c	Pisces	12.2
NGC 625		SB(s)m	Phoenix	11.7
NGC 772		SA(s)b	Aries	11.1
NGC 891		SA(s)b	Andromeda	10.8
NGC 1032		S0/a	Cetus	12.6
NGC 1042		SAB(rs)cd	Cetus	14.0
NGC 1055		SBb:II-III: spindle	Cetus	11.6
NGC 1087		SAB(rs)c	Cetus	12.2
NGC 1090		SB(rs)bc	Cetus^[1]	12.5
NGC 1097		R'_1:)SB(r'l)bSy1	Fornax	10.2
NGC 1232		SAB(rs)c	Eridanus	10.9
NGC 1300		(R')SB(s)bc	Eridanus	11.4
NGC 1309		SA(s)bc	Eridanus	12.0
NGC 1365		(R')SBb(s)b	Fornax	10.3
NGC 1398		(R')SB(r)ab	Fornax	10.6
NGC 1512		SB(r)ab	Horologium	11.1
NGC 1532		SB(s)b pec	Eridanus	10.7
NGC 1637		SAB(rs)c	Eridanus	11.5
NGC 2207		SAB(rs)bc pec	Canis Major	12.2
NGC 2403		SAB(s)cd	Camelopardalis	8.9
NGC 2442		SAB(s)bc pec	Volans	11.2
NGC 2541		SA(s)cd	Lynx^[2]	12.3
NGC 2683		SA(rs)b	Lynx	10.6
NGC 2715		SABc	Camelopardalis^[3]	12^[4]
NGC 2841		SA(r)b	Ursa Major	10.1
NGC 2903		SB(s)d	Leo	9.7
NGC 2976		SAc pec	Ursa Major	10.8
NGC 2997		SA(s)c	Antlia	10.1
NGC 3054		SAB(r)bc	Hydra	12.6
NGC 3079		SB(s)c	Ursa Major	11.5
NGC 3109		SB(s)m	Hydra	10.4
NGC 3184		SA(s)b	Ursa Major	9.6
NGC 3223		Sb	Antlia	12
NGC 3310		SAB(r)bc pec	Ursa Major	11.2
NGC 3314		SBbc/SAab	Hydra	12.5
NGC 3370		SA(s)c	Leo	12.3
NGC 3486		Sb	Leo Minor^[5]	11.0^[5]
NGC 3521		SABbc	Leo^[5]	10^[5]
NGC 3596		SAB(rs)c	Leo	12.0
NGC 3628		SAb pec	Leo	14.0
NGC 3642			Ursa Major	10.8
NGC 3877		Sc	Ursa Major	12.1
NGC 3949		SA(s)bc	Ursa Major	11.5
NGC 3953		SB(r)bc	Ursa Major	10.8
NGC 3981			Crater	11
NGC 3982		SAB(r)b	Ursa Major	12.0
NGC 4013		SAb	Ursa Major	19.2
NGC 4027		SB(s)dm	Corvus	11.7
NGC 4088		SAB(rs)bc	Ursa Major	11.2
NGC 4216		SAB(s)b	Virgo	11.0
NGC 4314		SBa ^[6]	Coma Berenices	11.4
NGC 4395		SA(s)m	Canes Venatici^[5]	10.6
NGC 4414		SA(rs)c	Coma Berenices	11.0
NGC 4565		SA(s)b	Coma Berenices	10.42
NGC 4618		SB(rs)m	Canes Venatici	11.2
NGC 4625		SAB(rs)m pec	Canes Venatici	13.2
NGC 4631		SB(s)d	Canes Venatici	9.8
NGC 4725		SAB(r)ab pec	Coma Berenices	10.1
NGC 4911		Sb ^[6]	Coma Berenices	13.33
NGC 4945		SB(s)cd	Centaurus	9.3
NGC 5005		SAB(rs)bc	Canes Venatici	10.6
NGC 5033		SA(s)c	Canes Venatici	10.8
NGC 5068		SB(s)d	Virgo	10.5
NGC 5078		SA(s)a	Hydra	11.8
NGC 5091		Sb pec sp	Centaurus	13.9
NGC 5164		SBb	Ursa Major	14.1
NGC 5257		SAB(s)b pec	Virgo	12.9
NGC 5258		SA(s)b pec	Virgo	12.9
NGC 5474		SA(s)cd pec	Ursa Major	11.3
NGC 5624		S	Virgo	14.6
NGC 5713		SAB(rs)bc pec	Virgo	12.1
NGC 5921		SB(r)bc	Serpens Caput	11.5
NGC 6744		SAB(r)bc	Pavo	9.14
NGC 6745		S	Lyra	13.3
NGC 6872		SAB(rs)c	Pavo	12.7
NGC 6946		SAB(rs)cd	Cepheus	9.6
NGC 7217		(R)SA(r)ab	Pegasus	11.0
NGC 7318		SB(s)bc pec	Pegasus	14.4 / 13.9
NGC 7329		SBbc	Tucana	11.31
NGC 7331		SA(s)b	Pegasus	10.4
NGC 7479		SB(s)c	Pegasus	11.6
NGC 7742		SA(r)b	Pegasus	12.4
NGC 7752		SAB(rs)bc	Pegasus	12.8
NGC 7793		SA(s)d	Sculptor	10.0
NGC 7814		SA(S)ab	Pegasus	11.6
UGC 2885		SA(rs)c	Perseus	13.5
UGC 10214, Tadpole Galaxy		SB(s)c pec	Draco	14.4
UGC 12158		SB	Pegasus	14.5

References

^ Normandin, George (2002). "Barred Spiral Galaxy NGC 1090". Retrieved Dec. 26, 2006
^ Matthews, Doug & Betts, Charles (2003). "NGC 2541". Retrieved Dec. 26 2006.
^ Frommert, Hartmut. "NGC 2715" Archived 2005-02-22 at the Wayback Machine. Retrieved on December 26, 2006.
^ Centre de Données astronomiques de Strasbourg. "VizieR Detailed Page". Retrieved on December 26, 2006.
^ ^a ^b ^c ^d ^e Celestia version 1.4.1. Laurel, Chris, 2006.
^ ^a ^b SIMBAD service at Centre de Données astronomiques de Strasbourg. "SIMBAD". Retrieved on April 9, 2013.