Ancha - θ Aquarii (theta Aquarii)

Ancha, also designated as θ Aquarii (theta Aquarii), is a giant star in the constellation of Aquarius.

Ancha visual magnitude is 4.16. Because of its moderate brightness, Ancha 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 Ancha:

Color of Ancha ⬤

Magnitude of Ancha 4.16

Class Giant

VISIBILITY RIGHT NOW Ancha - θ Aquarii (theta Aquarii) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of Ancha

Ancha 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 Ancha are provided in the following table:

Right Ascension J2000 22h 16m 50s

Declination J2000 -07° 46’ 59”

Galactic Longitude 53.51°

Galactic Latitude -48.62°

Constellation Aquarius

The simplified sky map below shows the position of Ancha in the sky:

Finder chart Ancha - θ Aquarii (theta Aquarii) star

Simplified finder chart for Ancha - θ Aquarii (theta Aquarii).

Visibility of Ancha from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Ancha - θ Aquarii (theta Aquarii) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 97.8° RISE 5:24

Max altitude: 30.7° TRANSIT 10:42

Azimuth: 262.2° SET 16:01

RIGHT NOW Ancha - θ Aquarii (theta Aquarii) is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of Ancha

The image below is a photograph of Ancha 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 Ancha is 0.121 arcsec per year in Right Ascension and -0.022 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of Ancha - θ Aquarii (theta Aquarii) star

DSS2 image of Ancha. The red arrow shows the motion of Ancha during the next 1000 years (2.02 arcmin in Right Ascension and -0.37 arcmin in declination);

Distance of Ancha from the Sun and relative movement

Ancha is distant 191.31 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

Distance (parsec) 58.69 pc

Distance (light year) 191.31 ly

Heliocentric radial velocity -15 km/s

Proper Motion RA 0.121 arcsec/year

Proper Motion Dec -0.022 arcsec/year

Spectral properties of Ancha

Ancha belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 0.32

Spectral Type G8III

Color Index (B-V) 0.98

Temperature of Ancha 4791K

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

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

Alternative designations of Ancha

Proper Name Ancha

Bayer designation θ Aquarii
(theta Aquarii)

Flamsteed designation 43 Aquarii

Henry Draper Catalogue HD211391

SAO Catalogue SAO145991

Hipparcos Catalogue HIP110003

Durchmusterung Catalogue BD-08 5845

FK5 Catalogue 840

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Other stars in Aquarius