HR2870

HR2870 is a double main-sequence star in the constellation of Puppis.

HR2870 visual magnitude is 6.38. Because of its reltive faintness, HR2870 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 HR2870:

Color of HR2870 ⬤

Magnitude of HR2870 6.38

Class Main-sequence

VISIBILITY RIGHT NOW HR2870 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR2870

HR2870 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 HR2870 are provided in the following table:

Right Ascension J2000 07h 28m 51s

Declination J2000 -31° 50’ 53”

Galactic Longitude 245.36°

Galactic Latitude -6.76°

Constellation Puppis

The simplified sky map below shows the position of HR2870 in the sky:

Simplified finder chart for HR2870.

Visibility of HR2870 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 HR2870 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: 121.8° RISE 13:31

Max altitude: 6.7° TRANSIT 16:05

Azimuth: 238.2° SET 18:39

RIGHT NOW HR2870 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR2870

The image below is a photograph of HR2870 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 HR2870 is 0.008 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR2870. The red arrow shows the motion of HR2870 during the next 100000 years (13.33 arcmin in Right Ascension and 5.00 arcmin in declination);

Distance of HR2870 from the Sun and relative movement

HR2870 is distant 582.14 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

Distance (parsec) 178.57 pc

Distance (light year) 582.14 ly

Heliocentric radial velocity 2 km/s

Proper Motion RA 0.008 arcsec/year

Proper Motion Dec 0.003 arcsec/year

Spectral properties of HR2870

HR2870 belongs to spectral class B3 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 0.12

Spectral Type B3V

Color Index (B-V) -0.17

Temperature of HR2870 12902K

The red dot in the diagram below shows where HR2870 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2870. Attribution: Richard Powell / CC BY-SA

HR2870 star system properties

HR2870 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR2870 double sysyem:

Main star magnitude 6.38

Secondary star magnitude 7.08

Magnitude difference 0.7

Separation 8.9 arcsec

Alternative designations of HR2870

Henry Draper Catalogue HD59499

SAO Catalogue SAO198038

Hipparcos Catalogue HIP36345

Durchmusterung Catalogue CD-31 4590

In Evidence

Other stars in Puppis