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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:35  
clear_day Transit: 12:10  
SunsetSet: 17:45
sunny DaytimeWhat's Visible Now?
All Constellations » Puppis » 


Altitude: -55.9°   Azimuth: 69.8°   Direction: East-North-East

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 skies, while it is not visible at all from skies affected by light pollution.

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.

Image of HR2870 star
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);

Key facts about HR2870


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

Altitude: -55.9°
Azimuth: 69.8°
Direction: East-North-East

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:

07h 28m 51s
-31° 50’ 53”

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

Finder chart HR2870 star
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°
Max altitude: 6.7°
Azimuth: 238.2°

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.

178.57 pc
582.14 ly
2 km/s
0.008 arcsec/year
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.


The red dot in the diagram below shows where HR2870 is situated in the Hertzsprungā€“Russell diagram.

HR 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:

8.9 arcsec

Alternative designations of HR2870