Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:46  
clear_day Transit: 12:57  
SunsetSet: 21:08 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Puppis » 

HR2158

Altitude: -83.4°   Azimuth: 13.2°   Direction: North-North-East

HR2158 is a multiple main-sequence star in the constellation of Puppis.

HR2158 visual magnitude is 5.93. Because of its reltive faintness, HR2158 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 HR2158:

5.93
Main-sequence

HR2158 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -83.4°
Azimuth: 13.2°
Direction: North-North-East

Celestial coordinates and finder chart of HR2158

HR2158 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 HR2158 are provided in the following table:

06h 04m 40s
-45° 04’ 44”
252.18°
-26.76°
Puppis

The simplified sky map below shows the position of HR2158 in the sky:

Finder chart HR2158 star
Simplified finder chart for HR2158.

Visibility of HR2158 from your location

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

HR2158 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR2158

The image below is a photograph of HR2158 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 HR2158 is -0.07 arcsec per year in Right Ascension and 0.255 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR2158 star
DSS2 image of HR2158. The red arrow shows the motion of HR2158 during the next 1000 years (-1.17 arcmin in Right Ascension and 4.25 arcmin in declination);

Distance of HR2158 from the Sun and relative movement

HR2158 is distant 88.08 light years from the Sun and it is moving far from the Sun at the speed of 27 kilometers per second.

27.02 pc
88.08 ly
27 km/s
-0.07 arcsec/year
0.255 arcsec/year

Spectral properties of HR2158

HR2158 belongs to spectral class F4 and has a luminosity class of V corresponding to a main-sequence star.

3.77
F4V
6435K

The red dot in the diagram below shows where HR2158 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2158. Attribution: Richard Powell / CC BY-SA

HR2158 star system properties

HR2158 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR2158 double sysyem:

5.93
6.23
0.3
196.7 arcsec

Alternative designations of HR2158

SAO217706
SAO217706