Dwarf Cepheid
A class of also called an or . They have periods on the order of one to two hours. They have typical amplitude variations of 0.3 to 1.0 magnitudes, spectral types A or F, and absolute magnitudes of 0 to .
Dwarf Cepheids
Type I Cepheids (Spectral Class A-F) ( +4 to +2) with periods of 1 to 3 hours. (also called Scuti stars)
Dwarf Galaxy ...
Dwarf cepheids typically have a period of from 2.4 hours to 4.8 hours (i.e. 0.1-0.2 days), although as a group they range from as short as 1h20m to as long as 6h. AI Velorum's period is 2h40m.
Dwarf Cepheids in which two or more almost identical periods exist which cause periodic amplitude fluctuations in their light curves. The "beat" period averages about 2 to 21/2 hours. [H76]
Becklin-Neugebauer Object ...
They were once known as Dwarf Cepheids. They often show many superimposed periods, which combine to form an extremely complex light curve. The typical δ Scuti star has an amplitude of 0.003 - 0.9 magnitudes and a period of 0.01 - 0.2 days.
As such, they have been called "dwarf Cepheids" in the past. Like the Cepheids, these stars also have a period-luminosity relation, which means that if you know the period, you can measure how far away it is by measuring its brightness.
The prototype, located in the constellation Vela, 2.8° north-northeast of Gamma Velorum, is the brightest of its class, with a magnitude range of 6.4 to 7.1. AI Velorum stars were formerly known as a dwarf Cepheids.
 See also: Period, Dwarf, Star, Cepheid, Amplitude
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