27 Orionis

Altitude: -29.5° Azimuth: 313.0° Direction: North-West

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

27 Orionis visual magnitude is 5.08. Because of its reltive faintness, 27 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 27 Orionis:

Color of 27 Orionis ⬤

Magnitude of 27 Orionis 5.08

Class Giant

VISIBILITY RIGHT NOW

27 Orionis is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -29.5°
Azimuth: 313.0°
Direction: North-West

Celestial coordinates and finder chart of 27 Orionis

27 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 27 Orionis are provided in the following table:

Right Ascension J2000 05h 24m 28s

Declination J2000 -00° 53’ 29”

Galactic Longitude 203.46°

Galactic Latitude -19.68°

Constellation Orion

The simplified sky map below shows the position of 27 Orionis in the sky:

Simplified finder chart for 27 Orionis.

Visibility of 27 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 27 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: 90.9° RISE 18:09

Max altitude: 37.6° TRANSIT 0:06

Azimuth: 269.1° SET 6:00

Digitized Sky Survey image of 27 Orionis

The image below is a photograph of 27 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 27 Orionis is -0.005 arcsec per year in Right Ascension and 0.132 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of 27 Orionis. The red arrow shows the motion of 27 Orionis during the next 1000 years (-0.08 arcmin in Right Ascension and 2.20 arcmin in declination);

Distance of 27 Orionis from the Sun and relative movement

27 Orionis is distant 172.21 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

Distance (parsec) 52.83 pc

Distance (light year) 172.21 ly

Heliocentric radial velocity 20 km/s

Proper Motion RA -0.005 arcsec/year

Proper Motion Dec 0.132 arcsec/year

Spectral properties of 27 Orionis

27 Orionis belongs to spectral class G9 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 1.47

Spectral Type G9III

Color Index (B-V) 0.96

Temperature of 27 Orionis 4841K

The red dot in the diagram below shows where 27 Orionis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 27 Orionis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 27 Orionis

Flamsteed designation 27 Orionis

Henry Draper Catalogue HD35410

SAO Catalogue SAO132070

Hipparcos Catalogue HIP25282

Durchmusterung Catalogue BD-01 886

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In Evidence

Other stars in Orion