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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:38  
clear_day Transit: 12:10  
SunsetSet: 17:43
sleep NighttimeWhat's Visible Now?
All Constellations » Aquarius » 

Ancha - θ Aquarii (theta Aquarii)

Altitude: -45.2°   Azimuth: 343.1°   Direction: North-North-West

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 skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

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);

Key facts about Ancha


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

Altitude: -45.2°
Azimuth: 343.1°
Direction: North-North-West

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:

22h 16m 50s
-07° 46’ 59”

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 edit_location_alt
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 edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 97.8°
Max altitude: 30.7°
Azimuth: 262.2°

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.

58.69 pc
191.31 ly
-15 km/s
0.121 arcsec/year
-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.


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

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

Alternative designations of Ancha

θ Aquarii
(theta Aquarii)