π Aquarii (pi Aquarii)

Altitude: 39.0° Azimuth: 165.6° Direction: South-South-East

π Aquarii is a variable main-sequence star in the constellation of Aquarius.

π Aquarii visual magnitude is 4.66. Because of its moderate brightness, π Aquarii 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 π Aquarii:

Color of π Aquarii ⬤

Magnitude of π Aquarii 4.66

Class Main-sequence

VISIBILITY RIGHT NOW

π Aquarii (pi Aquarii) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 39.0°
Azimuth: 165.6°
Direction: South-South-East

Celestial coordinates and finder chart of π Aquarii

π Aquarii 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 π Aquarii are provided in the following table:

Right Ascension J2000 22h 25m 16s

Declination J2000 +01° 22’ 38”

Galactic Longitude 66.01°

Galactic Latitude -44.74°

Constellation Aquarius

The simplified sky map below shows the position of π Aquarii in the sky:

Finder chart π Aquarii (pi Aquarii) star

Simplified finder chart for π Aquarii (pi Aquarii).

Visibility of π Aquarii 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 π Aquarii (pi Aquarii) 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: 88.6° RISE 10:59

Max altitude: 39.9° TRANSIT 17:04

Azimuth: 271.4° SET 23:09

Digitized Sky Survey image of π Aquarii

The image below is a photograph of π Aquarii 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 π Aquarii is 0.019 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of π Aquarii. The red arrow shows the motion of π Aquarii during the next 10000 years (3.17 arcmin in Right Ascension and 0.17 arcmin in declination);

Distance of π Aquarii from the Sun and relative movement

π Aquarii is distant 1,101.35 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

Distance (parsec) 337.84 pc

Distance (light year) 1,101.35 ly

Heliocentric radial velocity 4 km/s

Proper Motion RA 0.019 arcsec/year

Proper Motion Dec 0.001 arcsec/year

Spectral properties of π Aquarii

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

Absolute magnitude -2.98

Spectral Type B1V

Color Index (B-V) -0.03

Temperature of π Aquarii 10516K

The red dot in the diagram below shows where π Aquarii is situated in the Hertzsprung–Russell diagram.

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

Alternative designations of π Aquarii

Bayer designation π Aquarii
(pi Aquarii)

Flamsteed designation 52 Aquarii

Henry Draper Catalogue HD212571

SAO Catalogue SAO127520

Hipparcos Catalogue HIP110672

Durchmusterung Catalogue BD+00 4872

FK5 Catalogue 1585

General Catalogue of Variable Stars Pi Aqr

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