HR2811

Altitude: -0.6° Azimuth: 98.9° Direction: East

HR2811 is a variable sub-giant star in the constellation of Monoceros.

HR2811 visual magnitude is 5.82. Because of its reltive faintness, HR2811 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 HR2811:

Color of HR2811 ⬤

Magnitude of HR2811 5.82

Class Sub-giant

VISIBILITY RIGHT NOW

HR2811 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -0.6°
Azimuth: 98.9°
Direction: East

Celestial coordinates and finder chart of HR2811

HR2811 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 HR2811 are provided in the following table:

Right Ascension J2000 07h 22m 25s

Declination J2000 -05° 58’ 58”

Galactic Longitude 221.81°

Galactic Latitude 4.12°

Constellation Monoceros

The simplified sky map below shows the position of HR2811 in the sky:

Simplified finder chart for HR2811.

Visibility of HR2811 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 HR2811 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: 96.0° RISE 21:19

Max altitude: 32.5° TRANSIT 2:51

Azimuth: 264.0° SET 8:19

Digitized Sky Survey image of HR2811

The image below is a photograph of HR2811 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 HR2811 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.

DSS2 image of HR2811. The red arrow shows the motion of HR2811 during the next 10000 years (-1.83 arcmin in Right Ascension and -0.67 arcmin in declination);

Distance of HR2811 from the Sun and relative movement

HR2811 is distant 908.08 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

Distance (parsec) 278.55 pc

Distance (light year) 908.08 ly

Heliocentric radial velocity 11 km/s

Proper Motion RA -0.011 arcsec/year

Proper Motion Dec -0.004 arcsec/year

Spectral properties of HR2811

HR2811 belongs to spectral class F3 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude -1.40

Spectral Type F3IV

Color Index (B-V) 0.35

Temperature of HR2811 7158K

The red dot in the diagram below shows where HR2811 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2811. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2811

Henry Draper Catalogue HD57749

SAO Catalogue SAO134588

Hipparcos Catalogue HIP35749

Durchmusterung Catalogue BD-05 2089

General Catalogue of Variable Stars 3560

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In Evidence

Other stars in Monoceros