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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
SunriseRise: 7:01  
clear_day Transit: 12:12  
SunsetSet: 17:24
sunny DaytimeWhat's Visible Now?
All Constellations » Orion » 

HR1837

Altitude: 18.5°   Azimuth: 107.3°   Direction: East-South-East

HR1837 is a variable giant star in the constellation of Orion.

HR1837 visual magnitude is 6.21. Because of its reltive faintness, HR1837 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of HR1837 is 0.002 arcsec per year in Right Ascension and -0.048 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1837 star
DSS2 image of HR1837. The red arrow shows the motion of HR1837 during the next 10000 years (0.33 arcmin in Right Ascension and -8.00 arcmin in declination);

Key facts about HR1837

6.21
Giant

HR1837 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 18.5°
Azimuth: 107.3°
Direction: East-South-East

Celestial coordinates and finder chart of HR1837

HR1837 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 HR1837 are provided in the following table:

05h 30m 19s
+04° 12’ 15”
199.53°
-15.91°
Orion

The simplified sky map below shows the position of HR1837 in the sky:

Finder chart HR1837 star
Simplified finder chart for HR1837.

Visibility of HR1837 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 HR1837 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: 85.8°
Max altitude: 42.7°
Azimuth: 274.2°

Distance of HR1837 from the Sun and relative movement

HR1837 is distant 573.94 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

176.06 pc
573.94 ly
15 km/s
0.002 arcsec/year
-0.048 arcsec/year

Spectral properties of HR1837

HR1837 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

-0.02
K2III
4176K

The red dot in the diagram below shows where HR1837 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1837. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1837

SAO112837
SAO112837