HR2688

Altitude: 4.1° Azimuth: 144.2° Direction: South-East

HR2688 is a sub-giant star in the constellation of Canis Major.

HR2688 visual magnitude is 6.62. Because of its reltive faintness, HR2688 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 HR2688:

Color of HR2688 ⬤

Magnitude of HR2688 6.62

Class Sub-giant

VISIBILITY RIGHT NOW

HR2688 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 4.1°
Azimuth: 144.2°
Direction: South-East

Celestial coordinates and finder chart of HR2688

HR2688 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR2688 are provided in the following table:

Right Ascension J2000 07h 07m 00s

Declination J2000 -26° 39’ 28”

Galactic Longitude 238.52°

Galactic Latitude -8.66°

Constellation Canis Major

The simplified sky map below shows the position of HR2688 in the sky:

Simplified finder chart for HR2688.

Visibility of HR2688 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 HR2688 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: 116.7° RISE 23:05

Max altitude: 11.9° TRANSIT 2:32

Azimuth: 243.3° SET 5:54

Digitized Sky Survey image of HR2688

The image below is a photograph of HR2688 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 HR2688 is 0.016 arcsec per year in Right Ascension and -0.032 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR2688. The red arrow shows the motion of HR2688 during the next 10000 years (2.67 arcmin in Right Ascension and -5.33 arcmin in declination);

Distance of HR2688 from the Sun and relative movement

HR2688 is distant 1,461.88 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

Distance (parsec) 448.43 pc

Distance (light year) 1,461.88 ly

Heliocentric radial velocity 4 km/s

Proper Motion RA 0.016 arcsec/year

Proper Motion Dec -0.032 arcsec/year

Spectral properties of HR2688

HR2688 belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude -1.64

Spectral Type B2IV

Color Index (B-V) -0.17

Temperature of HR2688 12902K

The red dot in the diagram below shows where HR2688 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2688. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2688

Henry Draper Catalogue HD54224

SAO Catalogue SAO172989

Hipparcos Catalogue HIP34331

Durchmusterung Catalogue CD-26 3880

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In Evidence

Other stars in Canis Major