φ1 Orionis (phi1 Orionis)

Below the horizon. Rise: 22:32 | Tran: 5:23 | Set: 12:09

Alt: -28.97° Az: 356.77° Direction: North

φ1 Orionis is a hypergiant star of spectral class B0 in the constellation of Orion.

φ1 Orionis visual magnitude is 4.41. Because of its moderate brightness, φ1 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 φ1 Orionis. The red arrow shows the motion of φ1 Orionis during the next 100000 years (3.33 arcmin in Right Ascension and -6.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 05h 36m 10s

Declination +09° 30’ 14”

Hour Angle 11h 48m 32s

Sideral Time 17h 24m 43s

J2000

Right Ascension 05h 34m 49s

Declination +09° 29’ 21”

Galactic Coordinates

Galactic Longitude 195.4°

Galactic Latitude -12.29°

Finder Chart

Simplified finder chart for φ1 Orionis (phi1 Orionis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.41

Class Hypergiant

Absolute magnitude -2.99

Spectral Type B0III

Color Index (B-V) -0.16

Temperature 12692K

The red dot in the diagram below shows where φ1 Orionis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of φ1 Orionis. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

φ1 Orionis is distant 984.89 light years from the Sun and it is moving far from the Sun at the speed of 33 kilometers per second.

Distance (parsec) 302.11

Distance (light year) 984.89

Radial Speed 33 km/s

Proper Motion RA 0.002 arcsec/y

Proper Motion Dec -0.004"/y

Alternative Designations

Bayer designation φ1 Orionis
(phi1 Orionis)

Flamsteed designation 37 Orionis

Henry Draper Catalogue HD36822

SAO Catalogue SAO112914

Hipparcos Catalogue HIP26176

Durchmusterung Catalogue BD+09 877

FK5 Catalogue 208

Visibility from Your Location

Today's φ1 Orionis (phi1 Orionis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 80.5° RISE 22:32

Max altitude: 48.0° TRANSIT 5:23

Azimuth: 279.5° SET 12:09

Set Location

Other stars in Orion