We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support keeps us free & ad-free » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sunny DaytimeWhat's Visible Now?
All Constellations » Hydra » 


Altitude: -56.8°   Azimuth: 291.5°   Direction: West-North-West

HR4307 is a giant star in the constellation of Hydra.

HR4307 visual magnitude is 6.46. Because of its reltive faintness, HR4307 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR4307 is -0.039 arcsec per year in Right Ascension and -0.031 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4307 star
DSS2 image of HR4307. The red arrow shows the motion of HR4307 during the next 10000 years (-6.50 arcmin in Right Ascension and -5.17 arcmin in declination);

Key facts about HR4307


HR4307 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -56.8°
Azimuth: 291.5°
Direction: West-North-West

Celestial coordinates and finder chart of HR4307

HR4307 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4307 are provided in the following table:

11h 03m 16s
-31° 57’ 38”

The simplified sky map below shows the position of HR4307 in the sky:

Finder chart HR4307 star
Simplified finder chart for HR4307.

Visibility of HR4307 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 HR4307 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: 122.0°
Max altitude: 6.6°
Azimuth: 238.0°

Distance of HR4307 from the Sun and relative movement

HR4307 is distant 752.89 light years from the Sun and it is moving far from the Sun at the speed of 80 kilometers per second.

230.95 pc
752.89 ly
80 km/s
-0.039 arcsec/year
-0.031 arcsec/year

Spectral properties of HR4307

HR4307 belongs to spectral class M1 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4307 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4307. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4307