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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:02 
Transit: 12:56 
Sunset: 20:51
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All Constellations » Puppis » 

HR2157

Below the horizon.  Never rises today
Alt: -12.07°   Az: 206.72°   Direction: South-South-West

HR2157 is a multiple hypergiant star of spectral class G0 in the constellation of Puppis.

HR2157 visual magnitude is 6.35. Because of its faintness, HR2157 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of HR2157 star
DSS2 image of HR2157. The red arrow shows the motion of HR2157 during the next 1000 years (-1.33 arcmin in Right Ascension and 4.07 arcmin in declination);

Celestial Coordinates

Apparent

06h 05m 12s
-45° 02’ 22”
02h 33m 56s
08h 39m 09s

J2000

06h 04m 28s
-45° 02’ 12”

Galactic Coordinates

252.13°
-26.78°

Finder Chart

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Finder chart for HR2157.

Magnitude, Color, Spectral Class

6.35
Hypergiant

4.22
G0IV
6300K

The red dot in the diagram below shows where HR2157 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR2157. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR2157 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR2157 double sysyem:

6.35
6.65
0.3
196.7 arcsec

Distance, Radial Speed, Proper Motion

HR2157 is distant 87.03 light years from the Sun and it is moving far from the Sun at the speed of 26 kilometers per second.

26.70
87.03
26 km/s
-0.08 arcsec/y
0.244"/y

Alternative Designations

SAO217702
SAO217702

Visibility from Your Location

HR2157 is currently not visible from Greenwich, UK