We use cookies to deliver essential features and to measure their performance. Learn more.
Keep TheSkyLive Ad-Free Donate Now!
public LocationGreenwich, UK
Sunrise: 5:15 
Transit: 13:06 
Sunset: 20:56
sunny   (Daytime)   What's Visible Now?
All Constellations » Hydra » 

φ2 Hydrae (phi2 Hydrae)

Above the horizon.  Rise: 10:51 | Tran: 15:22 | Set: 19:53
Alt: 5.79°   Az: 125.81°   Direction: South-East

φ2 Hydrae is a double giant star of spectral class M1 in the constellation of Hydra.

φ2 Hydrae visual magnitude is 6.03. Because of its faintness, φ2 Hydrae is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of φ2 Hydrae (phi2 Hydrae) star
DSS2 image of φ2 Hydrae. The red arrow shows the motion of φ2 Hydrae during the next 10000 years (-4.33 arcmin in Right Ascension and -0.17 arcmin in declination);

Celestial Coordinates


10h 37m 28s
-16° 28’ 20”
20h 10m 51s
06h 48m 20s


10h 36m 16s
-16° 20’ 39”

Galactic Coordinates


Finder Chart

Finder chart φ2 Hydrae (phi2 Hydrae) star
Simplified finder chart for φ2 Hydrae (phi2 Hydrae).

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where φ2 Hydrae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of φ2 Hydrae. Attribution: Richard Powell / CC BY-SA

Star System Properties

φ2 Hydrae is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the φ2 Hydrae double sysyem:

3.4 arcsec

Distance, Radial Speed, Proper Motion

φ2 Hydrae is distant 967.36 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

16 km/s
-0.026 arcsec/y

Alternative Designations

φ2 Hydrae
(phi2 Hydrae)

Visibility from Your Location

Today's φ2 Hydrae (phi2 Hydrae) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 106.5°
Max altitude: 22.0°
Azimuth: 253.5°