16 Orionis

16 Orionis is a variable and multiple star in the constellation of Orion.

16 Orionis visual magnitude is 5.43. Because of its reltive faintness, 16 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 16 Orionis:

Color of 16 Orionis ⬤

Magnitude of 16 Orionis 5.43

Class

VISIBILITY RIGHT NOW 16 Orionis is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of 16 Orionis

16 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 16 Orionis are provided in the following table:

Right Ascension J2000 05h 09m 19s

Declination J2000 +09° 49’ 45”

Galactic Longitude 191.69°

Galactic Latitude -17.46°

Constellation Orion

The simplified sky map below shows the position of 16 Orionis in the sky:

Simplified finder chart for 16 Orionis.

Visibility of 16 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 16 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: 80.2° RISE 6:42

Max altitude: 48.3° TRANSIT 13:30

Azimuth: 279.8° SET 20:18

RIGHT NOW 16 Orionis is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 16 Orionis

The image below is a photograph of 16 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 16 Orionis is 0.064 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 16 Orionis. The red arrow shows the motion of 16 Orionis during the next 10000 years (10.67 arcmin in Right Ascension and -1.17 arcmin in declination);

Distance of 16 Orionis from the Sun and relative movement

16 Orionis is distant 175.84 light years from the Sun and it is moving far from the Sun at the speed of 37 kilometers per second.

Distance (parsec) 53.94 pc

Distance (light year) 175.84 ly

Heliocentric radial velocity 37 km/s

Proper Motion RA 0.064 arcsec/year

Proper Motion Dec -0.007 arcsec/year

Spectral properties of 16 Orionis

16 Orionis belongs to spectral class A2

Absolute magnitude 1.77

Spectral Type A2

Color Index (B-V) 0.24

Temperature of 16 Orionis 7866K

The red dot in the diagram below shows where 16 Orionis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 16 Orionis. Attribution: Richard Powell / CC BY-SA

16 Orionis star system properties

16 Orionis 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 16 Orionis double sysyem:

Main star magnitude 5.43

Secondary star magnitude 9.93

Magnitude difference 4.5

Separation 168 arcsec

Alternative designations of 16 Orionis

Flamsteed designation 16 Orionis

Henry Draper Catalogue HD33254

SAO Catalogue SAO112467

Hipparcos Catalogue HIP23983

Durchmusterung Catalogue BD+09 743

FK5 Catalogue 1142

General Catalogue of Variable Stars 1849

In Evidence

Other stars in Orion