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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:50  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
sunny DaytimeWhat's Visible Now?
All Constellations » Crater » 


Altitude: 4.1°   Azimuth: 246.0°   Direction: West-South-West

HR4305 is a double giant star in the constellation of Crater.

HR4305 visual magnitude is 5.5. Because of its reltive faintness, HR4305 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR4305:


HR4305 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 4.1°
Azimuth: 246.0°
Direction: West-South-West

Celestial coordinates and finder chart of HR4305

HR4305 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 HR4305 are provided in the following table:

11h 03m 14s
-11° 18’ 12”

The simplified sky map below shows the position of HR4305 in the sky:

Finder chart HR4305 star
Simplified finder chart for HR4305.

Visibility of HR4305 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 HR4305 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: 101.3°
Max altitude: 27.2°
Azimuth: 258.7°

Digitized Sky Survey image of HR4305

The image below is a photograph of HR4305 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 HR4305 is -0.07 arcsec per year in Right Ascension and -0.108 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4305 star
DSS2 image of HR4305. The red arrow shows the motion of HR4305 during the next 1000 years (-1.17 arcmin in Right Ascension and -1.80 arcmin in declination);

Distance of HR4305 from the Sun and relative movement

HR4305 is distant 318.36 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

97.66 pc
318.36 ly
-8 km/s
-0.07 arcsec/year
-0.108 arcsec/year

Spectral properties of HR4305

HR4305 belongs to spectral class G7 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4305 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4305. Attribution: Richard Powell / CC BY-SA

HR4305 star system properties

HR4305 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR4305 double sysyem:

3.7 arcsec

Alternative designations of HR4305