We use cookies to deliver essential features and to measure their performance. Learn more.
Love TheSkyLive? Donate Now!
public LocationGreenwich, UK
Sunrise: 5:11 
Transit: 13:06 
Sunset: 21:00
sunny   (Daytime)   What's Visible Now?
All Constellations » Aquarius » 

99 Aquarii

Below the horizon.  Rise: 0:15 | Tran: 4:25 | Set: 8:32
Alt: -2.10°   Az: 238.88°   Direction: West-South-West

99 Aquarii is a variable giant star of spectral class K5 in the constellation of Aquarius.

99 Aquarii visual magnitude is 4.39. Because of its moderate brightness, 99 Aquarii is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of 99 Aquarii star
DSS2 image of 99 Aquarii. The red arrow shows the motion of 99 Aquarii during the next 10000 years (-8.67 arcmin in Right Ascension and -9.67 arcmin in declination);

Celestial Coordinates


23h 27m 20s
-20° 30’ 24”
04h 23m 54s
03h 51m 14s


23h 26m 02s
-20° 38’ 30”

Galactic Coordinates


Finder Chart

Finder chart 99 Aquarii star
Simplified finder chart for 99 Aquarii.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where 99 Aquarii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 99 Aquarii. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

99 Aquarii is distant 308.42 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

16 km/s
-0.052 arcsec/y

Alternative Designations


Visibility from Your Location

Today's 99 Aquarii rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 110.5°
Max altitude: 18.0°
Azimuth: 249.5°