The colour of Sirius in the sixth century

  title={The colour of Sirius in the sixth century},
  author={Stephen C. McCluskey},

A Search for Exozodiacal Dust and Faint Companions near Sirius, Procyon, and Altair with the NICMOS Coronagraph

We observed Sirius, Altair, and Procyon with the NICMOS coronagraph on the Hubble Space Telescope to look for scattered light from exozodiacal dust and faint companions within 10 AU from these stars.

A physical interpretation of the ‘red Sirius’ anomaly

The controversy over whether the brightest star, Sirius (α CMa; HR 2491), was red in visual appearance some 2000 years ago, as suggested by Ptolemy amongst others, is re-examined from a physical

Did Sirius change colour?



S. Georgii Florentii Gregorii Turonensis Episcopi liber ineditus De cursu stellarum ratio qualiter ad officium implendum debeat observari sive de cursibus ecclesiasticis

Zawiera ilustracje i faksymile 1 strony rekopisu. Rkps. dedykacja wydawcy dla bpa wroclawskiego Heinricha Forstera.

Astronomy of the Ancients

The eight articles and dozens of photographs and drawings in this book introduce the reader to the ancient astronomers -- their observatories, their instruments, and their explorations of the awesome

An early-medieval account on the red colour of Sirius and its astrophysical implications

An unresolved problem regarding ancient astronomical records is that of the star ‘Red Sirius’. While Sirius today shines white with a blueish hue quite in agreement with its spectral type AIV, many