List of Stars Whose Photographic Absolute Magnitudes Are Less Than +10

Absolute magnitudes and kinematics of barium stars

The absolute magnitude of barium stars has been obtained from kinematical data using a new algorithm based on the maximum-likelihood principle. The method allows to separate a sample into groups characterized by different mean absolute magnitudes, kinematics and z-scale heights. It also takes into account, simultaneously, the censorship in the sample and the errors on the observables. The metho...

Photographic Magnitudes of Stars in the Selected Areas of Kapteyn.

insemination by artificial or natural means, thereby minimizing the amount of error introduced in experimental work by the use of females in unknown physiological condition. In critical experiments by using for an indicator a vasectomized male, homozygous for one color factor, and for the later insemination sperm from a male homozygous for another color factor, one will have a definite breeding...

The Absolute Magnitudes of Long Period Variable Stars.

The absolute magnitudes of RR Lyrae stars from HIPPARCOS parallaxes ?

Using the method of “reduced parallaxes” for the Halo RR Lyrae stars in the hipparcos catalogue we derive a zero point of 0.77 ± 0.26 mag for an assumed slope of 0.18 in the MV-[Fe/H] relation. This is 0.28 magnitude brighter than the value Fernley et al. (1998a) derived by employing the method of statistical parallax for the identical sample and using the same slope. We point out that a simila...

Absolute Magnitudes of Chemically Peculiar

The position of diierent kinds of CP stars of the upper Main Sequence (i.e. Am stars and the four categories of Ap stars: He-weak, HgMn, Si and SrCrEu) in the HR diagram is examined. Using only those stars having a parallax with a relative error smaller than 0.14 ((M v) 0:3) and an absolutely certain peculiarity, it is shown that their absolute magnitudes are similar to those obtained from CP s...