Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
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All Constellations » Puppis » 

HR2748

HR2748 is a variable and double giant star in the constellation of Puppis.

HR2748 visual magnitude is 5.1. Because of its reltive faintness, HR2748 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 HR2748:

5.1
Giant
HR2748 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR2748

HR2748 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 HR2748 are provided in the following table:

07h 13m 32s
-44° 38’ 22”
255.77°
-15.04°
Puppis

The simplified sky map below shows the position of HR2748 in the sky:

Finder chart HR2748 star
Simplified finder chart for HR2748.

Visibility of HR2748 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR2748 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR2748

The image below is a photograph of HR2748 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 HR2748 is 0.114 arcsec per year in Right Ascension and 0.33 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR2748 star
DSS2 image of HR2748. The red arrow shows the motion of HR2748 during the next 1000 years (1.90 arcmin in Right Ascension and 5.50 arcmin in declination);

Distance of HR2748 from the Sun and relative movement

HR2748 is distant 198.06 light years from the Sun and it is moving far from the Sun at the speed of 53 kilometers per second.

60.75 pc
198.06 ly
53 km/s
0.114 arcsec/year
0.33 arcsec/year

Spectral properties of HR2748

HR2748 belongs to spectral class M5 and has a luminosity class of III corresponding to a giant star.

1.18
M5III
3705K

The red dot in the diagram below shows where HR2748 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2748. Attribution: Richard Powell / CC BY-SA

HR2748 star system properties

HR2748 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR2748 double sysyem:

5.1
11.5
6.4
62 arcsec

Alternative designations of HR2748

SAO218549
SAO218549