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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: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
sleep NighttimeWhat's Visible Now?
All Constellations » Puppis » 


Altitude: -29.2°   Azimuth: 246.6°   Direction: West-South-West

HR2787 is a variable and multiple main-sequence star in the constellation of Puppis.

HR2787 visual magnitude is 4.66. Because of its moderate brightness, HR2787 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The proper motion of HR2787 is -0.003 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR2787 star
DSS2 image of HR2787. The red arrow shows the motion of HR2787 during the next 100000 years (-5.00 arcmin in Right Ascension and 1.67 arcmin in declination);

Key facts about HR2787


HR2787 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -29.2°
Azimuth: 246.6°
Direction: West-South-West

Celestial coordinates and finder chart of HR2787

HR2787 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 HR2787 are provided in the following table:

07h 18m 18s
-36° 44’ 03”

The simplified sky map below shows the position of HR2787 in the sky:

Finder chart HR2787 star
Simplified finder chart for HR2787.

Visibility of HR2787 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 HR2787 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: 126.7°
Max altitude: 1.8°
Azimuth: 233.3°

Distance of HR2787 from the Sun and relative movement

HR2787 is distant 846.75 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

259.74 pc
846.75 ly
19 km/s
-0.003 arcsec/year
0.001 arcsec/year

Spectral properties of HR2787

HR2787 belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR2787 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2787. Attribution: Richard Powell / CC BY-SA

HR2787 star system properties

HR2787 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR2787 double sysyem:

239.9 arcsec

Alternative designations of HR2787