HR1777

Altitude: 15.6° Azimuth: 258.7° Direction: West-South-West

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:

Color of HR1777 ⬤

Magnitude of HR1777 6.35

Class Main-sequence

VISIBILITY RIGHT NOW

HR1777 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 15.6°
Azimuth: 258.7°
Direction: West-South-West

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:

Right Ascension J2000 05h 23m 31s

Declination J2000 +05° 19’ 20”

Galactic Longitude 197.64°

Galactic Latitude -16.82°

Constellation Orion

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

Simplified finder chart for HR1777.

Visibility of HR1777 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 HR1777 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: 84.7° RISE 7:07

Max altitude: 43.8° TRANSIT 13:32

Azimuth: 275.3° SET 19:57

RIGHT NOW HR1777 is above 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.

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.

Distance (parsec) 75.08 pc

Distance (light year) 244.74 ly

Heliocentric radial velocity 9 km/s

Proper Motion RA -0.024 arcsec/year

Proper Motion Dec -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.

Absolute magnitude 1.97

Spectral Type A2V

Color Index (B-V) 0.12

Temperature of HR1777 8839K

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

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

Alternative designations of HR1777

Henry Draper Catalogue HD35242

SAO Catalogue SAO112708

Hipparcos Catalogue HIP25205

Durchmusterung Catalogue BD+05 905

In Evidence

Other stars in Orion