π4 Orionis (pi4 Orionis)

Above the horizon. Rise: 12:49 | Tran: 19:16 | Set: 1:46

Alt: 10.77° Az: 265.52° Direction: West

π4 Orionis is a variable giant star of spectral class B2 in the constellation of Orion.

π4 Orionis visual magnitude is 3.69. Because of its moderate brightness, π4 Orionis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of π4 Orionis. The red arrow shows the motion of π4 Orionis during the next 100000 years (-1.67 arcmin in Right Ascension and 1.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 04h 52m 32s

Declination +05° 38’ 45”

Hour Angle 05h 19m 10s

Sidereal Time 10h 11m 43s

J2000

Right Ascension 04h 51m 12s

Declination +05° 36’ 18”

Galactic Coordinates

Galactic Longitude 192.89°

Galactic Latitude -23.52°

Finder Chart

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Finder chart for π4 Orionis (pi4 Orionis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.69

Class Giant

Absolute magnitude -4.24

Spectral Type B2III

Color Index (B-V) -0.17

Temperature 12902K

The red dot in the diagram below shows where π4 Orionis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of π4 Orionis. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

π4 Orionis is distant 1,258.69 light years from the Sun and it is moving far from the Sun at the speed of 23 kilometers per second.

Distance (parsec) 386.10

Distance (light year) 1,258.69

Radial Speed 23 km/s

Proper Motion RA -0.001 arcsec/y

Proper Motion Dec 0.001"/y

Alternative Designations

Bayer designation π4 Orionis
(pi4 Orionis)

Flamsteed designation 3 Orionis

Henry Draper Catalogue HD30836

SAO Catalogue SAO112142

Hipparcos Catalogue HIP22549

Durchmusterung Catalogue BD+05 745

FK5 Catalogue 179

General Catalogue of Variable Stars 1742

Visibility from Your Location

Today's π4 Orionis (pi4 Orionis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 84.4° RISE 12:49

Max altitude: 44.2° TRANSIT 19:16

Azimuth: 275.6° SET 1:46

Set Location

Other stars in Orion