Iota Persei
Encyclopedia
Iota Persei is a main sequence
dwarf star in the constellation
Perseus
. It is somewhat larger and greater in mass than the Sun
, and is located about 34 light years distant. Iota Persei has a relatively high proper motion
across the sky, and moves at a net velocity of 92 km/s, relative to the Sun.
No sub-stellar companions to this star have yet been found. There is a 12th-magnitude line-of-sight companion star that is not believed to be gravitationally associated with Iota Persei.
Main sequence
The main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness. These color-magnitude plots are known as Hertzsprung–Russell diagrams after their co-developers, Ejnar Hertzsprung and Henry Norris Russell...
dwarf star 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....
Perseus
Perseus (constellation)
Perseus is a constellation in the northern sky, named after the Greek hero Perseus. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations defined by the International Astronomical Union...
. It is somewhat larger and greater in mass than the Sun
Sun
The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields...
, and is located about 34 light years distant. Iota Persei has a relatively high proper motion
Proper motion
The proper motion of a star is its angular change in position over time as seen from the center of mass of the solar system. It is measured in seconds of arc per year, arcsec/yr, where 3600 arcseconds equal one degree. This contrasts with radial velocity, which is the time rate of change in...
across the sky, and moves at a net velocity of 92 km/s, relative to the Sun.
No sub-stellar companions to this star have yet been found. There is a 12th-magnitude line-of-sight companion star that is not believed to be gravitationally associated with Iota Persei.
Cultural references
- The planet Grainne in the book FreeholdFreehold (novel)Freehold is a science fiction novel written by Michael Z. Williamson, published in 2004 by Baen Books. The Freehold series is continued in The Weapon which begins prior to Freehold and ends approximately two years afterwards.-Plot:...
, by Michael Z. WilliamsonMichael Z. WilliamsonMichael Z. Williamson is a science fiction and military fiction author. Born in Birkenhead, England, he and his family emigrated to Canada, then the United States in 1978. Williamson frequently utilizes the pen names "Mad Mike", and "Crazy Einar". He is retired from the United States...
, is described as orbiting Iota Persei.