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🌎  Greenwich, United Kingdom [change]


HR2817 is a variable main-sequence star in the constellation of Gemini.

HR2817 visual magnitude is 6.41. Because of its reltive faintness, HR2817 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 HR2817:

HR2817 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR2817

HR2817 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 HR2817 are provided in the following table:

07h 24m 27s
+15° 31’ 01”

The simplified sky map below shows the position of HR2817 in the sky:

Finder chart HR2817 star
Simplified finder chart for HR2817.

Visibility of HR2817 from your location

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

Today's HR2817 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 74.5°
Max altitude: 54.0°
Azimuth: 285.5°
HR2817 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR2817

The image below is a photograph of HR2817 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 HR2817 is 0.011 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR2817 star
DSS2 image of HR2817. The red arrow shows the motion of HR2817 during the next 10000 years (1.83 arcmin in Right Ascension and 0.67 arcmin in declination);

Distance of HR2817 from the Sun and relative movement

HR2817 is distant 4,865.67 light years from the Sun and it is moving far from the Sun at the speed of 37 kilometers per second.

1,492.54 pc
4,865.67 ly
37 km/s
0.011 arcsec/year
0.004 arcsec/year

Spectral properties of HR2817

HR2817 belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR2817 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR2817. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2817