We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Help keep this site free and ads-free! Donate Now!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:55  
clear_day Transit: 12:57  
SunsetSet: 20:00
sleep NighttimeWhat's Visible Now?
All Constellations » Puppis » 

HR3057

Altitude: -15.6°   Azimuth: 214.7°   Direction: South-West

HR3057 is a hypergiant star in the constellation of Puppis.

HR3057 visual magnitude is 6.32. Because of its reltive faintness, HR3057 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 HR3057 is -0.048 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3057 star
DSS2 image of HR3057. The red arrow shows the motion of HR3057 during the next 10000 years (-8.00 arcmin in Right Ascension and 0.50 arcmin in declination);

Key facts about HR3057

6.32
Hypergiant

HR3057 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -15.6°
Azimuth: 214.7°
Direction: South-West

Celestial coordinates and finder chart of HR3057

HR3057 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 HR3057 are provided in the following table:

07h 49m 28s
-44° 45’ 06”
258.76°
-9.36°
Puppis

The simplified sky map below shows the position of HR3057 in the sky:

Finder chart HR3057 star
Simplified finder chart for HR3057.

Visibility of HR3057 from your location

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

HR3057 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3057 from the Sun and relative movement

HR3057 is distant 329.29 light years from the Sun and it is moving far from the Sun at the speed of 32 kilometers per second.

101.01 pc
329.29 ly
32 km/s
-0.048 arcsec/year
0.003 arcsec/year

Spectral properties of HR3057

HR3057 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

1.30
K0III
4841K

The red dot in the diagram below shows where HR3057 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3057. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3057

SAO219040
SAO219040