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🌎  Greenwich, United Kingdom [change]


HR1777 is a main-sequence star in the constellation of Orion.

HR1777 visual magnitude is 6.35. Because of its reltive faintness, HR1777 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 HR1777:

HR1777 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR1777

HR1777 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 HR1777 are provided in the following table:

05h 23m 31s
+05° 19’ 20”

The simplified sky map below shows the position of HR1777 in the sky:

Finder chart HR1777 star
Simplified finder chart for HR1777.

Visibility of HR1777 from your location

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

Today's HR1777 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 84.7°
Max altitude: 43.8°
Azimuth: 275.3°
HR1777 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1777

The image below is a photograph of HR1777 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 HR1777 is -0.024 arcsec per year in Right Ascension and -0.003 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1777 star
DSS2 image of HR1777. The red arrow shows the motion of HR1777 during the next 10000 years (-4.00 arcmin in Right Ascension and -0.50 arcmin in declination);

Distance of HR1777 from the Sun and relative movement

HR1777 is distant 244.74 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

75.08 pc
244.74 ly
9 km/s
-0.024 arcsec/year
-0.003 arcsec/year

Spectral properties of HR1777

HR1777 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR1777 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1777. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1777