... It's easy to locate because of its proximity to the distinctive triangle of stars formed by delta, epsilon and zeta Cephei (delta Cep is the prototypical Cepheid variable). ...
... That information came from Cepheid variables discovered by Henrietta Leavitt. ... Curtis could have used the Cepheid "yardstick", but he resigned his post at Lick ... observing the Andromeda Nebulae, he found a Cepheid variable on one of his plates ...
... Intrinsic a. Pulsating stars i. Cepheids 1. Type I Classical 2. Type II W Virginis ii. RR Lyrae iii. ... STARS R CRB STARS - AT MAX EVERY CLEAR NIGHT CEPHEIDS CATACLYSMIC VARIABLES (SUPERNOVAE, NOVAE, DWARF NOVAE) SYMBIOTIC STARS R ...
... click image to view discuss) . Star V1 in M31 . star V1 at minimum (9/5/10), Hubble's original cepheid variable in Andromeda, here at Mag 19.4 . ...
... Some variables that amateurs are able to measure are Mira types, supernovas, cataclysmic variables (interacting binary), eclipsing binaries (pair of stars in eclipse), Cepheid variables (pulsating stars) and exoplanet transits. ...
... It's easy to locate because of its proximity to the distinctive triangle of stars formed by delta, epsilon and zeta Cephei (delta Cep is the prototypical Cepheid variable). ...
... The plate collection contains plates used by Annie Jump Cannon and Henrietta Swan Leavitt in the Cepheid Variable period luminosity discovery, establishment of the OBAFGKM spectra classification, and many other astronomical discoveries. ...
... Leonid Meteors B) discovered first American comet C) discovered 8 comets D) classified stellar spectra E) mathematics of astrolabe F) cepheids in SMC A) galaxy rotation curves, DM B) chemical evolution of galaxies C) Cassini at Saturn D) radio astronomy ...