supergiant Comparison Table

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supergiant comparison table

Subject has right ascension has spectral type has declination is part of has surface temperature is an instance of has optical brightness variation has V magnitude has observational problem has author has color has been observ has B-V magnitude has distance has absorption line has acronym has prototype has abundance has recovery time has primary has period is usually part of has amplitude has eclipse duration has outburst start time has absolute magnitude has wavelength is a kind of has hydrogen line strength has peak brightness has apparent magnitude has mass has name designated with has observable variation time scale has use has synonym has definition has number of star

Alpha Persei 3 24 19.3 F5Ib +49 51 41 Milky Way 6000 to 7500 K naked eye star 1.79 yellow-white for many centuries 0.48 asterism brighter than 5 greater than 0.08 the sun's mass HR 1017

Beta Arae 17 25 17.9 K3Ib-IIa -55 31 47 Milky Way 3600 to 5000 K naked eye star 2.85 orange to red for many centuries 1.46 asterism brighter than 5 greater than 0.08 the sun's mass HR 6461

blue supergiant greater than 1000 Kelvin supergiant greater than 0.08 the sun's mass A supergiant star with spectral type O or B. All blue supergiants are hot and young. Rigel, in the constellation Orion, is the best example.

Canopus 06 23 57.2 F0II -52 41 44 Milky Way 6000 to 7500 K naked eye star -0.72 yellow-white for many centuries 0.15 55 pc asterism brighter than 5 greater than 0.08 the sun's mass HR 2326 A supergiant, the second brightest star in the southern sky.

Epsilon Pegasi 21 44 11.1 K2Ib +9 52 30 Milky Way 3600 to 5000 K naked eye star 2.39 orange to red for many centuries 1.53 asterism brighter than 5 greater than 0.08 the sun's mass HR 8308

Polaris 2 31 50.5 F7:Ib-IIv +89 15 51 disk 6000 to 7500 K binary star 0.2 magnitudes or greater 2.02 some difficulty in distinguishing between various kinds Baade (1944) yellow-white for many centuries 0.60 330 light-years delta Cephei half the stars in the solar neighborhood are members of star systems F8 Ib 3.97 days asterism <M_v> = -0.5 to -6 brighter than 5 greater than 0.08 the sun's mass
R, S, T, U, V, W, X, Y, or Z and the genitive of the latin constellation name
RR, RS, RT, RU, RV, RW, RX, RY, or RZ and the genitive of the latin constellation name when the single letter designations are exhausted
AA...AZ, BB...BZ, etc. (omitting J), which ends with QQ...QZ and the genitive of the latin constellation namewhen the RR...RZ designations are exhausted
V 335, V 336, etc., when the double letter designations are exhausted
within a period of decades The star that lies near the direction in the sky toward which the North Pole of the Earth points. alpha UMi A supergiant F8 Ib, F3 V visual binary, with an orbital period of thousands of years. The primary (a Cepheid with a pulsation period of 3.97 days) is itself a single-lined spectroscopic double with a period of 29.6 years. There are at least two more faint (12th mag) components of the system. 2

post-asymptotic branch star 6000 to 7500 K yellow-white F star greater than 0.08 the sun's mass F-type supergiant with strong sulfur lines.

R Coronae Borealis variable F star, G star greater than 1000 Kelvin supergiant 0.2 magnitudes or greater some difficulty in distinguishing between various kinds CV R Corona Borealis 8 magnitudes cataclysmic variable weak greater than 0.08 the sun's mass
R, S, T, U, V, W, X, Y, or Z and the genitive of the latin constellation name
RR, RS, RT, RU, RV, RW, RX, RY, or RZ and the genitive of the latin constellation name when the single letter designations are exhausted
AA...AZ, BB...BZ, etc. (omitting J), which ends with QQ...QZ and the genitive of the latin constellation namewhen the RR...RZ designations are exhausted
V 335, V 336, etc., when the double letter designations are exhausted
within a period of decades explosive variable A very luminous helium-rich, carbon-rich, hydrogen-poor eruptive variable supergiant whose light declines up to 8 magnitudes at irregular intervals.

red supergiant greater than 1000 Kelvin supergiant greater than 0.08 the sun's mass A supergiant with spectral type M. Red supergiants are the largest stars in the universe: if put in place of the Sun, some would touch Saturn. The two brightest red supergiants in Earth's sky are Betelgeuse and Antares.

Vela X-1 B0.5 Ib celestial sphere 11000 to 28000 K single line spectroscopic binary 0.2 magnitudes or greater some difficulty in distinguishing between various kinds blue-white He I half the stars in the solar neighborhood are members of star systems X-ray 7 of unseen companion 1.7 to 15 M_sun, with a probable value of about 2.6 M_sun.
R, S, T, U, V, W, X, Y, or Z and the genitive of the latin constellation name
RR, RS, RT, RU, RV, RW, RX, RY, or RZ and the genitive of the latin constellation name when the single letter designations are exhausted
AA...AZ, BB...BZ, etc. (omitting J), which ends with QQ...QZ and the genitive of the latin constellation namewhen the RR...RZ designations are exhausted
V 335, V 336, etc., when the double letter designations are exhausted
within a period of decades 3U 0900-40 2

yellow supergiant 5000 to 6000 K yellowish G star greater than 0.08 the sun's mass A supergiant star with a spectral type of G.

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Subject	has right ascension	has spectral type	has declination	is part of	has surface temperature	is an instance of	has optical brightness variation	has V magnitude	has observational problem	has author	has color	has been observ	has B-V magnitude	has distance	has absorption line	has acronym	has prototype	has abundance	has recovery time	has primary	has period	is usually part of	has amplitude	has eclipse duration	has outburst start time	has absolute magnitude	has wavelength	is a kind of	has hydrogen line strength	has peak brightness	has apparent magnitude	has mass	has name designated with	has observable variation time scale	has use	has synonym	has definition	has number of star
Alpha Persei	3 24 19.3	F5Ib	+49 51 41	Milky Way	6000 to 7500 K	naked eye star		1.79			yellow-white	for many centuries	0.48									asterism									brighter than 5	greater than 0.08 the sun's mass				HR 1017
Beta Arae	17 25 17.9	K3Ib-IIa	-55 31 47	Milky Way	3600 to 5000 K	naked eye star		2.85			orange to red	for many centuries	1.46									asterism									brighter than 5	greater than 0.08 the sun's mass				HR 6461
blue supergiant					greater than 1000 Kelvin																							supergiant				greater than 0.08 the sun's mass					A supergiant star with spectral type O or B. All blue supergiants are hot and young. Rigel, in the constellation Orion, is the best example.
Canopus	06 23 57.2	F0II	-52 41 44	Milky Way	6000 to 7500 K	naked eye star		-0.72			yellow-white	for many centuries	0.15	55 pc								asterism									brighter than 5	greater than 0.08 the sun's mass				HR 2326	A supergiant, the second brightest star in the southern sky.
Epsilon Pegasi	21 44 11.1	K2Ib	+9 52 30	Milky Way	3600 to 5000 K	naked eye star		2.39			orange to red	for many centuries	1.53									asterism									brighter than 5	greater than 0.08 the sun's mass				HR 8308
Polaris	2 31 50.5	F7:Ib-IIv	+89 15 51	disk	6000 to 7500 K	binary star	0.2 magnitudes or greater	2.02	some difficulty in distinguishing between various kinds	Baade (1944)	yellow-white	for many centuries	0.60	330 light-years			delta Cephei	half the stars in the solar neighborhood are members of star systems		F8 Ib	3.97 days	asterism				<M_v> = -0.5 to -6					brighter than 5	greater than 0.08 the sun's mass	R, S, T, U, V, W, X, Y, or Z and the genitive of the latin constellation name RR, RS, RT, RU, RV, RW, RX, RY, or RZ and the genitive of the latin constellation name when the single letter designations are exhausted AA...AZ, BB...BZ, etc. (omitting J), which ends with QQ...QZ and the genitive of the latin constellation namewhen the RR...RZ designations are exhausted V 335, V 336, etc., when the double letter designations are exhausted	within a period of decades	The star that lies near the direction in the sky toward which the North Pole of the Earth points.	alpha UMi	A supergiant F8 Ib, F3 V visual binary, with an orbital period of thousands of years. The primary (a Cepheid with a pulsation period of 3.97 days) is itself a single-lined spectroscopic double with a period of 29.6 years. There are at least two more faint (12th mag) components of the system.	2
post-asymptotic branch star					6000 to 7500 K						yellow-white																	F star				greater than 0.08 the sun's mass					F-type supergiant with strong sulfur lines.
R Coronae Borealis variable		F star, G star			greater than 1000 Kelvin	supergiant	0.2 magnitudes or greater		some difficulty in distinguishing between various kinds							CV	R Corona Borealis						8 magnitudes					cataclysmic variable	weak			greater than 0.08 the sun's mass	R, S, T, U, V, W, X, Y, or Z and the genitive of the latin constellation name RR, RS, RT, RU, RV, RW, RX, RY, or RZ and the genitive of the latin constellation name when the single letter designations are exhausted AA...AZ, BB...BZ, etc. (omitting J), which ends with QQ...QZ and the genitive of the latin constellation namewhen the RR...RZ designations are exhausted V 335, V 336, etc., when the double letter designations are exhausted	within a period of decades		explosive variable	A very luminous helium-rich, carbon-rich, hydrogen-poor eruptive variable supergiant whose light declines up to 8 magnitudes at irregular intervals.
red supergiant					greater than 1000 Kelvin																							supergiant				greater than 0.08 the sun's mass					A supergiant with spectral type M. Red supergiants are the largest stars in the universe: if put in place of the Sun, some would touch Saturn. The two brightest red supergiants in Earth's sky are Betelgeuse and Antares.
Vela X-1		B0.5 Ib		celestial sphere	11000 to 28000 K	single line spectroscopic binary	0.2 magnitudes or greater		some difficulty in distinguishing between various kinds		blue-white				He I			half the stars in the solar neighborhood are members of star systems									X-ray				7	of unseen companion 1.7 to 15 M_sun, with a probable value of about 2.6 M_sun.	R, S, T, U, V, W, X, Y, or Z and the genitive of the latin constellation name RR, RS, RT, RU, RV, RW, RX, RY, or RZ and the genitive of the latin constellation name when the single letter designations are exhausted AA...AZ, BB...BZ, etc. (omitting J), which ends with QQ...QZ and the genitive of the latin constellation namewhen the RR...RZ designations are exhausted V 335, V 336, etc., when the double letter designations are exhausted	within a period of decades		3U 0900-40		2
yellow supergiant					5000 to 6000 K						yellowish																	G star				greater than 0.08 the sun's mass					A supergiant star with a spectral type of G.