Hatysa - ι Orionis (iota Orionis)
Hatysa, also designated as ι Orionis (iota Orionis), is a variable and multiple giant star in the constellation of Orion.
Hatysa visual magnitude is 2.77. Thanks to its high brightness, Hatysa is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.
The table below summarizes the key facts about Hatysa:
Celestial coordinates and finder chart of Hatysa
Hatysa is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Hatysa are provided in the following table:
The simplified sky map below shows the position of Hatysa in the sky:
Visibility of Hatysa from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's Hatysa - ι Orionis (iota Orionis) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of Hatysa
The image below is a photograph of Hatysa from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of Hatysa is 0 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of Hatysa from the Sun and relative movement
Hatysa is distant 1,325.20 light years from the Sun and it is moving far from the Sun at the speed of 22 kilometers per second.
Spectral properties of Hatysa
Hatysa belongs to spectral class O9 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where Hatysa is situated in the Hertzsprung–Russell diagram.
Hatysa star system properties
Hatysa is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the Hatysa double sysyem: