Aldebaran Comparison Table

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Aldebaran comparison table

Subject has right ascension has spectral type has declination is part of has surface temperature is an instance of has V magnitude has color has been observ has B-V magnitude has distance is usually part of is a kind of has apparent magnitude has synonym has definition has luminosity class

giant greater than 1000 Kelvin star High-luminosity star that lies above the main sequence on the Hertzsprung-Russell diagram. III

K star cooler than G2 3600 to 5000 K orange to red late star Cool star with spectral type K with spectra resembling those of sunspots, in which the hydrogen lines have been greatly weakened. The HK lines (q.v.) reach their greatest intensity. Strongest lines are Ca I (4227 Å) and the G-band (4303 Å).

naked eye star Milky Way greater than 1000 Kelvin for many centuries asterism naked eye object brighter than 5 A star visible without visual aids

Aldebaran 4 35 55.2 K5III +16 30 33 Milky Way 3600 to 5000 K naked eye star 0.85 orange to red for many centuries 1.54 21 parsecs asterism brighter than 5 HR 1457 A K5 III subgiant (a foreground star in the Hyades). It has a faint M2 V companion. It is now known to be slowly and irregularly variable. III

Subject	has right ascension	has spectral type	has declination	is part of	has surface temperature	is an instance of	has V magnitude	has color	has been observ	has B-V magnitude	has distance	is usually part of	is a kind of	has apparent magnitude	has synonym	has definition	has luminosity class
giant					greater than 1000 Kelvin								star			High-luminosity star that lies above the main sequence on the Hertzsprung-Russell diagram.	III
K star		cooler than G2			3600 to 5000 K			orange to red					late star			Cool star with spectral type K with spectra resembling those of sunspots, in which the hydrogen lines have been greatly weakened. The HK lines (q.v.) reach their greatest intensity. Strongest lines are Ca I (4227 Å) and the G-band (4303 Å).
naked eye star				Milky Way	greater than 1000 Kelvin				for many centuries			asterism	naked eye object	brighter than 5		A star visible without visual aids
Aldebaran	4 35 55.2	K5III	+16 30 33	Milky Way	3600 to 5000 K	naked eye star	0.85	orange to red	for many centuries	1.54	21 parsecs	asterism		brighter than 5	HR 1457	A K5 III subgiant (a foreground star in the Hyades). It has a faint M2 V companion. It is now known to be slowly and irregularly variable.	III

Next giant: Alpha Antliae Up: giant, K star, naked eye star Previous giant: yellow giant