Your Guide to the Solar System and the Night Sky
Donate now! You'll help cover server costs, enhance the site and keep it ad-free.
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:52  
clear_day Transit: 12:55  
SunsetSet: 20:59 south
sunny DaytimeWhat's Visible Now
Breakng! newly discovered Supernova 2023ixf in the Pinwheel Galaxy is the closest supernova observed in the latest decade. It can become bright enough to be visible by amateur astronomers. Check out information and detailed finder chart.
All Constellations » Puppis » 

HR3078

HR3078 is a variable sub-giant star in the constellation of Puppis.

HR3078 visual magnitude is 6.04. Because of its reltive faintness, HR3078 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 HR3078:

6.04
Sub-giant
HR3078 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR3078

HR3078 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 HR3078 are provided in the following table:

07h 51m 40s
-42° 53’ 17”
257.32°
-8.1°
Puppis

The simplified sky map below shows the position of HR3078 in the sky:

Finder chart HR3078 star
Simplified finder chart for HR3078.

Visibility of HR3078 from your location

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

HR3078 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR3078

The image below is a photograph of HR3078 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 HR3078 is -0.016 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3078 star
DSS2 image of HR3078. The red arrow shows the motion of HR3078 during the next 10000 years (-2.67 arcmin in Right Ascension and 0.67 arcmin in declination);

Distance of HR3078 from the Sun and relative movement

HR3078 is distant 1,762.16 light years from the Sun and it is moving far from the Sun at the speed of 32 kilometers per second.

540.54 pc
1,762.16 ly
32 km/s
-0.016 arcsec/year
0.004 arcsec/year

Spectral properties of HR3078

HR3078 belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.

-2.62
B2IV
13121K

The red dot in the diagram below shows where HR3078 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3078. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3078

SAO219076
SAO219076