66 Orionis

66 Orionis is a giant star in the constellation of Orion.

66 Orionis visual magnitude is 5.63. Because of its reltive faintness, 66 Orionis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 66 Orionis:

Color of 66 Orionis ⬤

Magnitude of 66 Orionis 5.63

Class Giant

VISIBILITY RIGHT NOW 66 Orionis is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 25°.

Celestial coordinates and finder chart of 66 Orionis

66 Orionis 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 66 Orionis are provided in the following table:

Right Ascension J2000 06h 04m 58s

Declination J2000 +04° 09’ 30”

Galactic Longitude 203.85°

Galactic Latitude -8.38°

Constellation Orion

The simplified sky map below shows the position of 66 Orionis in the sky:

Simplified finder chart for 66 Orionis.

Visibility of 66 Orionis from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's 66 Orionis rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 85.8° RISE 8:18

Max altitude: 42.7° TRANSIT 14:37

Azimuth: 274.2° SET 20:56

RIGHT NOW 66 Orionis is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 66 Orionis

The image below is a photograph of 66 Orionis 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 66 Orionis is -0.001 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of 66 Orionis. The red arrow shows the motion of 66 Orionis during the next 100000 years (-1.67 arcmin in Right Ascension and -8.33 arcmin in declination);

Distance of 66 Orionis from the Sun and relative movement

66 Orionis is distant 2,488.55 light years from the Sun and it is moving far from the Sun at the speed of 33 kilometers per second.

Distance (parsec) 763.36 pc

Distance (light year) 2,488.55 ly

Heliocentric radial velocity 33 km/s

Proper Motion RA -0.001 arcsec/year

Proper Motion Dec -0.005 arcsec/year

Spectral properties of 66 Orionis

66 Orionis belongs to spectral class G4 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -3.78

Spectral Type G4III

Color Index (B-V) 1.04

Temperature of 66 Orionis 4649K

The red dot in the diagram below shows where 66 Orionis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 66 Orionis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 66 Orionis

Flamsteed designation 66 Orionis

Henry Draper Catalogue HD41380

SAO Catalogue SAO113430

Hipparcos Catalogue HIP28814

Durchmusterung Catalogue BD+04 1116

FK5 Catalogue 230

In Evidence

Other stars in Orion