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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
north SunriseRise: 7:45  
clear_day Transit: 11:48  
SunsetSet: 15:51 south
wb_twilight Nautical TwilightWhat's Visible Now?
All Constellations » Puppis » 

HR2874

Altitude: -48.7°   Azimuth: 61.3°   Direction: East-North-East

HR2874 is a double supergiant star in the constellation of Puppis.

HR2874 visual magnitude is 4.85. Because of its moderate brightness, HR2874 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 table below summarizes the key facts about HR2874:

4.85
Supergiant

HR2874 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -48.7°
Azimuth: 61.3°
Direction: East-North-East

Celestial coordinates and finder chart of HR2874

HR2874 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 HR2874 are provided in the following table:

07h 29m 51s
-23° 01’ 27”
237.67°
-2.39°
Puppis

The simplified sky map below shows the position of HR2874 in the sky:

Finder chart HR2874 star
Simplified finder chart for HR2874.

Visibility of HR2874 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 HR2874 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: 113.0°
Max altitude: 15.5°
Azimuth: 247.0°

Digitized Sky Survey image of HR2874

The image below is a photograph of HR2874 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 HR2874 is -0.004 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR2874 star
DSS2 image of HR2874. The red arrow shows the motion of HR2874 during the next 100000 years (-6.67 arcmin in Right Ascension and -10.00 arcmin in declination);

Distance of HR2874 from the Sun and relative movement

HR2874 is distant 3,227.72 light years from the Sun and it is moving far from the Sun at the speed of 37 kilometers per second.

990.10 pc
3,227.72 ly
37 km/s
-0.004 arcsec/year
-0.006 arcsec/year

Spectral properties of HR2874

HR2874 belongs to spectral class A5 and has a luminosity class of I corresponding to a supergiant star.

-5.13
A5I
7938K

The red dot in the diagram below shows where HR2874 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2874. Attribution: Richard Powell / CC BY-SA

HR2874 star system properties

HR2874 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 HR2874 double sysyem:

4.85
10.75
5.9
3 arcsec

Alternative designations of HR2874

SAO173864
SAO173864