ρ Aquarii (rho Aquarii)

Altitude: -37.6° Azimuth: 46.2° Direction: North-East

ρ Aquarii is a giant star in the constellation of Aquarius.

ρ Aquarii visual magnitude is 5.37. Because of its reltive faintness, ρ Aquarii should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about ρ Aquarii:

Color of ρ Aquarii ⬤

Magnitude of ρ Aquarii 5.37

Class Giant

VISIBILITY RIGHT NOW

ρ Aquarii (rho Aquarii) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -37.6°
Azimuth: 46.2°
Direction: North-East

Celestial coordinates and finder chart of ρ Aquarii

ρ 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 ρ Aquarii are provided in the following table:

Right Ascension J2000 22h 20m 11s

Declination J2000 -07° 49’ 15”

Galactic Longitude 54.15°

Galactic Latitude -49.34°

Constellation Aquarius

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

Finder chart ρ Aquarii (rho Aquarii) star

Simplified finder chart for ρ Aquarii (rho Aquarii).

Visibility of ρ 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 ρ Aquarii (rho 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: 97.8° RISE 12:24

Max altitude: 30.7° TRANSIT 17:42

Azimuth: 262.2° SET 23:01

Digitized Sky Survey image of ρ Aquarii

The image below is a photograph of ρ 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 ρ Aquarii is 0.016 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 ρ Aquarii. The red arrow shows the motion of ρ Aquarii during the next 10000 years (2.67 arcmin in Right Ascension and -0.17 arcmin in declination);

Distance of ρ Aquarii from the Sun and relative movement

ρ Aquarii is distant 742.60 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

Distance (parsec) 227.79 pc

Distance (light year) 742.60 ly

Heliocentric radial velocity -9 km/s

Proper Motion RA 0.016 arcsec/year

Proper Motion Dec -0.001 arcsec/year

Spectral properties of ρ Aquarii

ρ Aquarii belongs to spectral class B8 and has a luminosity class of III corresponding to a giant star. ρ Aquarii is also a MnHg chemically peculiar star.

Absolute magnitude -1.42

Spectral Type B8III

Color Index (B-V) -0.06

Temperature of ρ Aquarii 10941K

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

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

Alternative designations of ρ Aquarii

Bayer designation ρ Aquarii
(rho Aquarii)

Flamsteed designation 46 Aquarii

Henry Draper Catalogue HD211838

SAO Catalogue SAO146023

Hipparcos Catalogue HIP110273

Durchmusterung Catalogue BD-08 5855

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In Evidence

Other stars in Aquarius