Popular Astronomy, Volume 50Goodsell Observatory of Carleton College, 1942 |
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Page 227
... spectral type . Harvard photographs revealed that the star had a spectrum of Nb type , similar to that of the nearby star , RV Monocerotis . Dearborn and Mount Wilson Observatories had previously listed the spectrum as N and N ...
... spectral type . Harvard photographs revealed that the star had a spectrum of Nb type , similar to that of the nearby star , RV Monocerotis . Dearborn and Mount Wilson Observatories had previously listed the spectrum as N and N ...
Page 393
variables , we find that 69 percent are of the Me spectral type ; 10 of the Se type ; 4 of M type ; 3 of Ne type ; and 1 of R type . For 13 percent , no spectral types have , as yet , been determined , but if we can judge by the range ...
variables , we find that 69 percent are of the Me spectral type ; 10 of the Se type ; 4 of M type ; 3 of Ne type ; and 1 of R type . For 13 percent , no spectral types have , as yet , been determined , but if we can judge by the range ...
Page 394
... spectral type stars into their subdivisions , we find that type Mle contains 2 stars ; M2e , 5 ; M3e , 19 ; M4e , 9 ; M5e , 10 ; M6e , 10 ; M7e , 11 ; and M8e , 1. For two of the Me stars , no subdivision of classification is avail ...
... spectral type stars into their subdivisions , we find that type Mle contains 2 stars ; M2e , 5 ; M3e , 19 ; M4e , 9 ; M5e , 10 ; M6e , 10 ; M7e , 11 ; and M8e , 1. For two of the Me stars , no subdivision of classification is avail ...
Contents
Bolide observed A bright 451 | 114 |
STELLAR DISTANCES FREDERICK SLOCUM | 117 |
METEORITIC FOSSILS BEN HUR WILSON | 125 |
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absolute magnitude American American Astronomical Society American Meteor Society angle appeared Astronomical Society atmosphere average azimuth changes College comets constellation craters Cygni diameter direction distance earth eclipse end point ephemeris errors fireball galactic galaxies given height horizon indicated instruments July June Jupiter latitude Lick Observatory light curve longitude luminosity lunar Mare Imbrium Mars maxima maximum mean measured meridian meteor meteorite method miles minimum moon motion nebulae Notes novae object observations Observatory obtained OCCULTATIONS Ohio orbit paper parallax path perihelion phenomena photographs planet POPULAR ASTRONOMY position predicted present probably problem projectile radiation region reports rotation seen solar spectra spectral type spectrum SS Cygni stellar sunspot surface Table telescope tion train University Variable Star variation velocity Venus visible Yerkes Observatory zenith Zodiacal Light