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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:49  
clear_day Transit: 12:50  
SunsetSet: 18:50 south
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All Constellations » Orion » 

ψ1 Orionis (psi1 Orionis)

Altitude: -18.0°   Azimuth: 62.4°   Direction: East-North-East

ψ1 Orionis is a variable main-sequence star in the constellation of Orion.

ψ1 Orionis visual magnitude is 4.95. Because of its moderate brightness, ψ1 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 ψ1 Orionis:


ψ1 Orionis (psi1 Orionis) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -18.0°
Azimuth: 62.4°
Direction: East-North-East

Celestial coordinates and finder chart of ψ1 Orionis

ψ1 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 ψ1 Orionis are provided in the following table:

05h 24m 44s
+01° 50’ 47”

The simplified sky map below shows the position of ψ1 Orionis in the sky:

Finder chart ψ1 Orionis (psi1 Orionis) star
Simplified finder chart for ψ1 Orionis (psi1 Orionis).

Visibility of ψ1 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 ψ1 Orionis (psi1 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: 88.2°
Max altitude: 40.4°
Azimuth: 271.8°

Digitized Sky Survey image of ψ1 Orionis

The image below is a photograph of ψ1 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 ψ1 Orionis is 0.001 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of ψ1 Orionis (psi1 Orionis) star
DSS2 image of ψ1 Orionis. The red arrow shows the motion of ψ1 Orionis during the next 100000 years (1.67 arcmin in Right Ascension and 1.67 arcmin in declination);

Distance of ψ1 Orionis from the Sun and relative movement

ψ1 Orionis is distant 1,108.84 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

340.14 pc
1,108.84 ly
19 km/s
0.001 arcsec/year
0.001 arcsec/year

Spectral properties of ψ1 Orionis

ψ1 Orionis belongs to spectral class B1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where ψ1 Orionis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ψ1 Orionis. Attribution: Richard Powell / CC BY-SA

Alternative designations of ψ1 Orionis

ψ1 Orionis
(psi1 Orionis)