HR2799

HR2799 is a variable main-sequence star in the constellation of Canis Major.

HR2799 visual magnitude is 6.61. Because of its reltive faintness, HR2799 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 HR2799:

Color of HR2799 ⬤

Magnitude of HR2799 6.61

Class Main-sequence

VISIBILITY RIGHT NOW HR2799 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR2799

HR2799 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 HR2799 are provided in the following table:

Right Ascension J2000 07h 20m 53s

Declination J2000 -22° 51’ 06”

Galactic Longitude 236.54°

Galactic Latitude -4.13°

Constellation Canis Major

The simplified sky map below shows the position of HR2799 in the sky:

Simplified finder chart for HR2799.

Visibility of HR2799 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 HR2799 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: 112.9° RISE 11:50

Max altitude: 15.7° TRANSIT 15:41

Azimuth: 247.1° SET 19:32

RIGHT NOW HR2799 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR2799

The image below is a photograph of HR2799 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 HR2799 is 0.006 arcsec per year in Right Ascension and -0.042 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR2799. The red arrow shows the motion of HR2799 during the next 10000 years (1.00 arcmin in Right Ascension and -7.00 arcmin in declination);

Distance of HR2799 from the Sun and relative movement

HR2799 is distant 1,752.69 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

Distance (parsec) 537.63 pc

Distance (light year) 1,752.69 ly

Heliocentric radial velocity 10 km/s

Proper Motion RA 0.006 arcsec/year

Proper Motion Dec -0.042 arcsec/year

Spectral properties of HR2799

HR2799 belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -2.04

Spectral Type B2V

Color Index (B-V) -0.15

Temperature of HR2799 12489K

The red dot in the diagram below shows where HR2799 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2799. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2799

Henry Draper Catalogue HD57573

SAO Catalogue SAO173517

Hipparcos Catalogue HIP35609

Durchmusterung Catalogue BD-22 1823

General Catalogue of Variable Stars Var

In Evidence

Other stars in Canis Major