π2 Orionis (pi2 Orionis)

Altitude: 3.9° Azimuth: 80.6° Direction: East

π2 Orionis is a main-sequence star in the constellation of Orion.

π2 Orionis visual magnitude is 4.36. Because of its moderate brightness, π2 Orionis should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about π2 Orionis:

Color of π2 Orionis ⬤

Magnitude of π2 Orionis 4.36

Class Main-sequence

VISIBILITY RIGHT NOW

π2 Orionis (pi2 Orionis) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 3.9°
Azimuth: 80.6°
Direction: East

Celestial coordinates and finder chart of π2 Orionis

π2 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 π2 Orionis are provided in the following table:

Right Ascension J2000 04h 50m 36s

Declination J2000 +08° 54’ 01”

Galactic Longitude 189.82°

Galactic Latitude -21.83°

Constellation Orion

The simplified sky map below shows the position of π2 Orionis in the sky:

Finder chart π2 Orionis (pi2 Orionis) star

Simplified finder chart for π2 Orionis (pi2 Orionis).

Visibility of π2 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 π2 Orionis (pi2 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: 81.1° RISE 22:48

Max altitude: 47.4° TRANSIT 5:35

Azimuth: 278.9° SET 12:18

Digitized Sky Survey image of π2 Orionis

The image below is a photograph of π2 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 π2 Orionis is 0.004 arcsec per year in Right Ascension and -0.032 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of π2 Orionis. The red arrow shows the motion of π2 Orionis during the next 10000 years (0.67 arcmin in Right Ascension and -5.33 arcmin in declination);

Distance of π2 Orionis from the Sun and relative movement

π2 Orionis is distant 193.59 light years from the Sun and it is moving far from the Sun at the speed of 24 kilometers per second.

Distance (parsec) 59.38 pc

Distance (light year) 193.59 ly

Heliocentric radial velocity 24 km/s

Proper Motion RA 0.004 arcsec/year

Proper Motion Dec -0.032 arcsec/year

Spectral properties of π2 Orionis

π2 Orionis belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 0.49

Spectral Type A1V

Color Index (B-V) 0.01

Temperature of π2 Orionis 10002K

The red dot in the diagram below shows where π2 Orionis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of π2 Orionis. Attribution: Richard Powell / CC BY-SA

Alternative designations of π2 Orionis

Bayer designation π2 Orionis
(pi2 Orionis)

Flamsteed designation 2 Orionis

Henry Draper Catalogue HD30739

SAO Catalogue SAO112124

Hipparcos Catalogue HIP22509

Durchmusterung Catalogue BD+08 777

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In Evidence

Other stars in Orion