A star Comparison Table

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Next early star: B star Up: early star Previous early star: Wolf-Rayet

A star comparison table

Subject has right ascension has spectral type has declination is part of has orbital period is an instance of has V magnitude has been observ has symbol has B-V magnitude has distance has abundance is usually part of is a kind of has apparent magnitude has emission line has synonym has definition has luminosity class has number of star

Ae star A star one or several Balmer lines A-type star with emission in one or several Balmer lines.

Alpha Cephei 21 18 34.7 A7V +62 35 08 Milky Way naked eye star 2.44 for many centuries d 0.22 asterism brighter than 5 HR 8162 V

Alpha Circini 14 42 30.3 ApSrEuCr: -64 58 31 Milky Way naked eye star 3.19 for many centuries 0.24 asterism brighter than 5 HR 5463

Alpha Coronae Autralis 19 09 28.2 A2V -37 54 16 Milky Way naked eye star 4.11 for many centuries d 0.04 asterism brighter than 5 HR 7254 V

Alpha Coronae Borealis 15 34 41.2 A0V +26 42 53 Milky Way naked eye star 2.23 for many centuries d -0.02 asterism brighter than 5 HR 5793 V

Alpha Doradus 4 33 59.8 A0IIISi -55 2 42 Milky Way naked eye star 3.27 for many centuries -0.10 asterism brighter than 5 HR 1465 III

Alpha Lacertae 22 31 17.4 A1V +50 16 57 Milky Way naked eye star 3.77 for many centuries d 0.01 asterism brighter than 5 HR 8585 V

Alpha Ophiuchi 17 34 56.0 A5III +12 33 36 Milky Way naked eye star 2.08 for many centuries 0.15 asterism brighter than 5 HR 6556 III

Alpha Pictoris 06 48 11.4 A7IV -61 56 29 Milky Way naked eye star 3.27 for many centuries 0.21 asterism brighter than 5 HR 2550 IV

Alpha Sextantis 10 7 56.2 A0III -0 22 18 Milky Way naked eye star 4.49 for many centuries -0.04 asterism brighter than 5 HR 3981 III

Altair 19 50 46.9 A7 V +08 52 06 Milky Way naked eye star 0.77 for many centuries d 0.22 4.8 pc asterism m_v = 0.78 HR 7557 A bright A7 V star. V

Am star O, B, A, and early F A star A-type or F-type object to which no unique spectral type can be assigned. Usually the classifier provides a classification according to the hydrogen, metallic and calcium lines. Also call metallic-line stars.

Ap star O, B, A, and early F A star Peculiar A-type stars ("magnetic" A stars) that show abnormally strong lines, sometimes of varying intensity, of certain ionized metals. Recent evidence indicates that all Ap stars are slow rotators compared with normal A stars.

Beta Trianguli 2 9 32.5 A5II +34 59 14 Milky Way naked eye star 3.00 for many centuries 0.14 asterism brighter than 5 HR 622 II

Canum Venaticorum 12 56 1.6 A0pSiEuHg +38 19 6 Milky Way naked eye star 2.90 for many centuries -0.12 asterism brighter than 5 HR 4915

Delta Capricorni 21 47 02.3 Amv -16 07 38 Milky Way naked eye star 2.87 for many centuries 0.29 asterism brighter than 5 HR 8322

Epsilon Ursae Majoris 12 54 1.7 A0pCr +55 57 35 Milky Way naked eye star 1.77 for many centuries -0.02 asterism brighter than 5 HR 4905

Fomalhaut 22 57 39.0 A3 V -29 37 20 Milky Way naked eye star 1.16 for many centuries d 0.09 7 pc asterism brighter than 5 HR 8728 An A star. The brightest star in the constellation Piscis Austrinus. V

Magnetic star O, B, A, and early F A star Star (usually of spectral type A) with strong integrated magnetic fields ranging up to 30000 gauss.

Sirius 6 45 8.9 A1Vm -16 42 58 Milky Way 49.9 years binary star -1.46 for many centuries d 0.00 8.6 light-years half the stars in the solar neighborhood are members of star systems asterism brighter than 5 HR 2491 The brightest star in the sky. Its companion (Sirius B) is a white dwarf of about 0.96 M_sun but only about 0.03 R_sun, the nearest white dwarf to Earth. V 2

Vega 18 36 56.2 A0Va +38 47 01 Milky Way naked eye star 0.03 for many centuries d 0.00 25 light-years asterism brighter than 5 HR 7001 The fifth brightest star in the night sky. V

white giant A star A giant star of spectral type A. Some RR Lyrae stars are white giants. III

white supergiant O, B, A, and early F A star A supergiant star with a spectral type of A. White supergiants are rare; the nearest is Deneb, which lies 1500 light-years away.

Next early star: B star Up: early star Previous early star: Wolf-Rayet

Subject	has right ascension	has spectral type	has declination	is part of	has orbital period	is an instance of	has V magnitude	has been observ	has symbol	has B-V magnitude	has distance	has abundance	is usually part of	is a kind of	has apparent magnitude	has emission line	has synonym	has definition	has luminosity class	has number of star
Ae star														A star		one or several Balmer lines		A-type star with emission in one or several Balmer lines.
Alpha Cephei	21 18 34.7	A7V	+62 35 08	Milky Way		naked eye star	2.44	for many centuries	d	0.22			asterism		brighter than 5		HR 8162		V
Alpha Circini	14 42 30.3	ApSrEuCr:	-64 58 31	Milky Way		naked eye star	3.19	for many centuries		0.24			asterism		brighter than 5		HR 5463
Alpha Coronae Autralis	19 09 28.2	A2V	-37 54 16	Milky Way		naked eye star	4.11	for many centuries	d	0.04			asterism		brighter than 5		HR 7254		V
Alpha Coronae Borealis	15 34 41.2	A0V	+26 42 53	Milky Way		naked eye star	2.23	for many centuries	d	-0.02			asterism		brighter than 5		HR 5793		V
Alpha Doradus	4 33 59.8	A0IIISi	-55 2 42	Milky Way		naked eye star	3.27	for many centuries		-0.10			asterism		brighter than 5		HR 1465		III
Alpha Lacertae	22 31 17.4	A1V	+50 16 57	Milky Way		naked eye star	3.77	for many centuries	d	0.01			asterism		brighter than 5		HR 8585		V
Alpha Ophiuchi	17 34 56.0	A5III	+12 33 36	Milky Way		naked eye star	2.08	for many centuries		0.15			asterism		brighter than 5		HR 6556		III
Alpha Pictoris	06 48 11.4	A7IV	-61 56 29	Milky Way		naked eye star	3.27	for many centuries		0.21			asterism		brighter than 5		HR 2550		IV
Alpha Sextantis	10 7 56.2	A0III	-0 22 18	Milky Way		naked eye star	4.49	for many centuries		-0.04			asterism		brighter than 5		HR 3981		III
Altair	19 50 46.9	A7 V	+08 52 06	Milky Way		naked eye star	0.77	for many centuries	d	0.22	4.8 pc		asterism		m_v = 0.78		HR 7557	A bright A7 V star.	V
Am star		O, B, A, and early F												A star				A-type or F-type object to which no unique spectral type can be assigned. Usually the classifier provides a classification according to the hydrogen, metallic and calcium lines. Also call metallic-line stars.
Ap star		O, B, A, and early F												A star				Peculiar A-type stars ("magnetic" A stars) that show abnormally strong lines, sometimes of varying intensity, of certain ionized metals. Recent evidence indicates that all Ap stars are slow rotators compared with normal A stars.
Beta Trianguli	2 9 32.5	A5II	+34 59 14	Milky Way		naked eye star	3.00	for many centuries		0.14			asterism		brighter than 5		HR 622		II
Canum Venaticorum	12 56 1.6	A0pSiEuHg	+38 19 6	Milky Way		naked eye star	2.90	for many centuries		-0.12			asterism		brighter than 5		HR 4915
Delta Capricorni	21 47 02.3	Amv	-16 07 38	Milky Way		naked eye star	2.87	for many centuries		0.29			asterism		brighter than 5		HR 8322
Epsilon Ursae Majoris	12 54 1.7	A0pCr	+55 57 35	Milky Way		naked eye star	1.77	for many centuries		-0.02			asterism		brighter than 5		HR 4905
Fomalhaut	22 57 39.0	A3 V	-29 37 20	Milky Way		naked eye star	1.16	for many centuries	d	0.09	7 pc		asterism		brighter than 5		HR 8728	An A star. The brightest star in the constellation Piscis Austrinus.	V
Magnetic star		O, B, A, and early F												A star				Star (usually of spectral type A) with strong integrated magnetic fields ranging up to 30000 gauss.
Sirius	6 45 8.9	A1Vm	-16 42 58	Milky Way	49.9 years	binary star	-1.46	for many centuries	d	0.00	8.6 light-years	half the stars in the solar neighborhood are members of star systems	asterism		brighter than 5		HR 2491	The brightest star in the sky. Its companion (Sirius B) is a white dwarf of about 0.96 M_sun but only about 0.03 R_sun, the nearest white dwarf to Earth.	V	2
Vega	18 36 56.2	A0Va	+38 47 01	Milky Way		naked eye star	0.03	for many centuries	d	0.00	25 light-years		asterism		brighter than 5		HR 7001	The fifth brightest star in the night sky.	V
white giant														A star				A giant star of spectral type A. Some RR Lyrae stars are white giants.	III
white supergiant		O, B, A, and early F												A star				A supergiant star with a spectral type of A. White supergiants are rare; the nearest is Deneb, which lies 1500 light-years away.