Population I Cepheid Comparison Table

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Population I Cepheid comparison table

Subject has right ascension has declination has spectral type has surface temperature has orbital period is an instance of has V magnitude has been observ has color has B-V magnitude has distance has abundance has primary is usually part of has period has apparent magnitude has use has synonym has definition has discovery date has luminosity class has number of star

Delta Cephei F star, G star and K star greater than 1000 Kelvin Population I Cepheid 5-10 days young disk Cepheid A pulsating star in the constellation Cepheus. It was the second Cepheid discovered and lent its name to the entire class of stars.

Eta Aquilae F star, G star and K star greater than 1000 Kelvin Population I Cepheid 5-10 days young disk Cepheid A pulsating star in the constellation Aquila. It was the first Cepheid discovered, in 1784. 1784

Polaris 2 31 50.5 +89 15 51 F7:Ib-IIv 6000 to 7500 K binary star 2.02 for many centuries yellow-white 0.60 330 light-years half the stars in the solar neighborhood are members of star systems F8 Ib asterism 3.97 days brighter than 5 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. I 2

Next Cepheid: Population II Cepheid Up: Cepheid, Population I star Previous Cepheid: dwarf Cepheid

Subject	has right ascension	has declination	has spectral type	has surface temperature	has orbital period	is an instance of	has V magnitude	has been observ	has color	has B-V magnitude	has distance	has abundance	has primary	is usually part of	has period	has apparent magnitude	has use	has synonym	has definition	has discovery date	has luminosity class	has number of star
Delta Cephei			F star, G star and K star	greater than 1000 Kelvin		Population I Cepheid									5-10 days			young disk Cepheid	A pulsating star in the constellation Cepheus. It was the second Cepheid discovered and lent its name to the entire class of stars.
Eta Aquilae			F star, G star and K star	greater than 1000 Kelvin		Population I Cepheid									5-10 days			young disk Cepheid	A pulsating star in the constellation Aquila. It was the first Cepheid discovered, in 1784.	1784
Polaris	2 31 50.5	+89 15 51	F7:Ib-IIv	6000 to 7500 K		binary star	2.02	for many centuries	yellow-white	0.60	330 light-years	half the stars in the solar neighborhood are members of star systems	F8 Ib	asterism	3.97 days	brighter than 5	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.		I	2