gjdonatiello
Sirius B
Sirius B
Taken by Giuseppe Donatiello
(J2000) RA: 06h 45m 08.91728s Dec: −16° 42′ 58.0171″
- Mag(v): Sirius A -1.47, Sirius B 8.44 -
Sirius is a star system and the brightest star in the nightsky with a visual magnitude of −1.46.
It is a binary star system, consisting of a white main-sequence star of spectral type A1V, Sirius A, and a faint white dwarf companion of spectral type DA2, called Sirius B. The distance separating Sirius A from B varies between 8.2 and 31.5 AU.
Sirius appears bright because of both its intrinsic luminosity and its proximity to Earth at 2.6 parsecs (8.6 ly).
Images are obtained using lucky and speckle imaging techniques.
Sirius B
Sirius B
Taken by Giuseppe Donatiello
(J2000) RA: 06h 45m 08.91728s Dec: −16° 42′ 58.0171″
- Mag(v): Sirius A -1.47, Sirius B 8.44 -
Sirius is a star system and the brightest star in the nightsky with a visual magnitude of −1.46.
It is a binary star system, consisting of a white main-sequence star of spectral type A1V, Sirius A, and a faint white dwarf companion of spectral type DA2, called Sirius B. The distance separating Sirius A from B varies between 8.2 and 31.5 AU.
Sirius appears bright because of both its intrinsic luminosity and its proximity to Earth at 2.6 parsecs (8.6 ly).
Images are obtained using lucky and speckle imaging techniques.