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🌎  Greenwich, United Kingdom [change]

HR1807

HR1807 is a hypergiant star in the constellation of Orion.

HR1807 visual magnitude is 6.42. Because of its reltive faintness, HR1807 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 HR1807:

6.42
Hypergiant
HR1807 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 43°.

Celestial coordinates and finder chart of HR1807

HR1807 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 HR1807 are provided in the following table:

05h 26m 38s
+06° 52’ 09”
196.66°
-15.36°
Orion

The simplified sky map below shows the position of HR1807 in the sky:

Finder chart HR1807 star
Simplified finder chart for HR1807.

Visibility of HR1807 from your location

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

Today's HR1807 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 83.1°
Max altitude: 45.4°
Azimuth: 276.9°
HR1807 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1807

The image below is a photograph of HR1807 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 HR1807 is 0.003 arcsec per year in Right Ascension and -0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1807 star
DSS2 image of HR1807. The red arrow shows the motion of HR1807 during the next 10000 years (0.50 arcmin in Right Ascension and -2.00 arcmin in declination);

Distance of HR1807 from the Sun and relative movement

HR1807 is distant 305.24 light years from the Sun and it is moving far from the Sun at the speed of 13 kilometers per second.

93.63 pc
305.24 ly
13 km/s
0.003 arcsec/year
-0.012 arcsec/year

Spectral properties of HR1807

HR1807 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

1.56
A0V
10382K

The red dot in the diagram below shows where HR1807 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1807. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1807

SAO112767
SAO112767