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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: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sleep NighttimeWhat's Visible Now?
All Constellations » Crater » 

HR4255

Altitude: 6.1°   Azimuth: 121.2°   Direction: East-South-East

HR4255 is a giant star in the constellation of Crater.

HR4255 visual magnitude is 5.66. Because of its reltive faintness, HR4255 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 HR4255:

5.66
Giant

HR4255 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 6.1°
Azimuth: 121.2°
Direction: East-South-East

Celestial coordinates and finder chart of HR4255

HR4255 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 HR4255 are provided in the following table:

10h 54m 17s
-13° 45’ 29”
264.46°
40.21°
Crater

The simplified sky map below shows the position of HR4255 in the sky:

Finder chart HR4255 star
Simplified finder chart for HR4255.

Visibility of HR4255 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 HR4255 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: 103.8°
Max altitude: 24.8°
Azimuth: 256.2°

Digitized Sky Survey image of HR4255

The image below is a photograph of HR4255 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 HR4255 is -0.005 arcsec per year in Right Ascension and 0.009 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR4255 star
DSS2 image of HR4255. The red arrow shows the motion of HR4255 during the next 100000 years (-8.33 arcmin in Right Ascension and 15.00 arcmin in declination);

Distance of HR4255 from the Sun and relative movement

HR4255 is distant 409.03 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

125.47 pc
409.03 ly
5 km/s
-0.005 arcsec/year
0.009 arcsec/year

Spectral properties of HR4255

HR4255 belongs to spectral class G4 and has a luminosity class of III corresponding to a giant star.

0.17
G4III
5192K

The red dot in the diagram below shows where HR4255 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4255. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4255

SAO156310
SAO156310