HR870

HR870 is a sub-giant star in the constellation of Cetus.

HR870 visual magnitude is 5.97. Because of its reltive faintness, HR870 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 HR870:

Color of HR870 ⬤

Magnitude of HR870 5.97

Class Sub-giant

VISIBILITY RIGHT NOW HR870 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR870

HR870 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 HR870 are provided in the following table:

Right Ascension J2000 02h 56m 13s

Declination J2000 +08° 22’ 54”

Galactic Longitude 167.75°

Galactic Latitude -43.37°

Constellation Cetus

The simplified sky map below shows the position of HR870 in the sky:

Simplified finder chart for HR870.

Visibility of HR870 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 HR870 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: 81.6° RISE 4:37

Max altitude: 46.9° TRANSIT 11:17

Azimuth: 278.4° SET 17:58

RIGHT NOW HR870 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR870

The image below is a photograph of HR870 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 HR870 is 0.068 arcsec per year in Right Ascension and -0.087 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR870. The red arrow shows the motion of HR870 during the next 10000 years (11.33 arcmin in Right Ascension and -14.50 arcmin in declination);

Distance of HR870 from the Sun and relative movement

HR870 is distant 145.15 light years from the Sun and it is moving far from the Sun at the speed of 29 kilometers per second.

Distance (parsec) 44.52 pc

Distance (light year) 145.15 ly

Heliocentric radial velocity 29 km/s

Proper Motion RA 0.068 arcsec/year

Proper Motion Dec -0.087 arcsec/year

Spectral properties of HR870

HR870 belongs to spectral class F7 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude 2.73

Spectral Type F7IV

Color Index (B-V) 0.48

Temperature of HR870 6481K

The red dot in the diagram below shows where HR870 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR870. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR870

Henry Draper Catalogue HD18262

SAO Catalogue SAO110851

Hipparcos Catalogue HIP13679

Durchmusterung Catalogue BD+07 450

In Evidence

Other stars in Cetus