Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:01  ☀️ Transit: 12:06  🌅 Sunset: 18:11


HR2315 is a hypergiant star in the constellation of Monoceros.

HR2315 visual magnitude is 6.51. Because of its reltive faintness, HR2315 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 HR2315:

HR2315 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR2315

HR2315 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 HR2315 are provided in the following table:

06h 25m 46s
+02° 16’ 19”

The simplified sky map below shows the position of HR2315 in the sky:

Finder chart HR2315 star
Simplified finder chart for HR2315.

Visibility of HR2315 from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's HR2315 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 87.7°
Max altitude: 40.8°
Azimuth: 272.3°
HR2315 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR2315

The image below is a photograph of HR2315 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 HR2315 is 0.005 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR2315 star
DSS2 image of HR2315. The red arrow shows the motion of HR2315 during the next 100000 years (8.33 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of HR2315 from the Sun and relative movement

HR2315 is distant 553.48 light years from the Sun and it is moving far from the Sun at the speed of 24 kilometers per second.

169.78 pc
553.48 ly
24 km/s
0.005 arcsec/year
-0.002 arcsec/year

Spectral properties of HR2315

HR2315 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR2315 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR2315. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2315