HD 3346
Encyclopedia
HD 3346, also known as V428 Andromedae, is an orange giant star approximately 655 light-year
s away in the constellation
of Andromeda
.
of this star were larger than expected. A planetary system was proposed to explain this variation.
Light-year
A light-year, also light year or lightyear is a unit of length, equal to just under 10 trillion kilometres...
s away in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....
of Andromeda
Andromeda (constellation)
Andromeda is a constellation in the northern sky. It is named after Andromeda, the princess in the Greek legend of Perseus who was chained to a rock to be eaten by the sea monster Cetus...
.
Possible planetary system
In 1996 it was announced that the variations in radial velocityRadial velocity
Radial velocity is the velocity of an object in the direction of the line of sight . In astronomy, radial velocity most commonly refers to the spectroscopic radial velocity...
of this star were larger than expected. A planetary system was proposed to explain this variation.