υ Aquarii (upsilon Aquarii)

Altitude: -10.5° Azimuth: 249.9° Direction: West-South-West

υ Aquarii is a sub-giant star in the constellation of Aquarius.

υ Aquarii visual magnitude is 5.2. Because of its reltive faintness, υ 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 υ Aquarii:

Color of υ Aquarii ⬤

Magnitude of υ Aquarii 5.2

Class Sub-giant

VISIBILITY RIGHT NOW

υ Aquarii (upsilon Aquarii) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -10.5°
Azimuth: 249.9°
Direction: West-South-West

Celestial coordinates and finder chart of υ Aquarii

υ 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 υ Aquarii are provided in the following table:

Right Ascension J2000 22h 34m 41s

Declination J2000 -20° 42’ 29”

Galactic Longitude 37.08°

Galactic Latitude -58.2°

Constellation Aquarius

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

Finder chart υ Aquarii (upsilon Aquarii) star

Simplified finder chart for υ Aquarii (upsilon Aquarii).

Visibility of υ 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 υ Aquarii (upsilon 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: 110.7° RISE 13:08

Max altitude: 17.8° TRANSIT 17:14

Azimuth: 249.3° SET 21:19

Digitized Sky Survey image of υ Aquarii

The image below is a photograph of υ 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 υ Aquarii is 0.222 arcsec per year in Right Ascension and -0.145 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of υ Aquarii (upsilon Aquarii) star

DSS2 image of υ Aquarii. The red arrow shows the motion of υ Aquarii during the next 1000 years (3.70 arcmin in Right Ascension and -2.42 arcmin in declination);

Distance of υ Aquarii from the Sun and relative movement

υ Aquarii is distant 74.14 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

Distance (parsec) 22.74 pc

Distance (light year) 74.14 ly

Heliocentric radial velocity -2 km/s

Proper Motion RA 0.222 arcsec/year

Proper Motion Dec -0.145 arcsec/year

Spectral properties of υ Aquarii

υ Aquarii belongs to spectral class F4 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude 3.42

Spectral Type F4IV

Color Index (B-V) 0.44

Temperature of υ Aquarii 6674K

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

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

Alternative designations of υ Aquarii

Bayer designation υ Aquarii
(upsilon Aquarii)

Flamsteed designation 59 Aquarii

Henry Draper Catalogue HD213845

SAO Catalogue SAO191235

Hipparcos Catalogue HIP111449

Durchmusterung Catalogue BD-21 6251

Gliese Catalogue Gl 863.2

FK5 Catalogue 849

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In Evidence

Other stars in Aquarius