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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: 6:04  
clear_day Transit: 12:06  
SunsetSet: 18:09
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All Constellations » Orion » 

HR1687

Altitude: -35.8°   Azimuth: 325.1°   Direction: North-West

HR1687 is a main-sequence star in the constellation of Orion.

HR1687 visual magnitude is 5.9. Because of its reltive faintness, HR1687 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR1687 is 0.079 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1687 star
DSS2 image of HR1687. The red arrow shows the motion of HR1687 during the next 10000 years (13.17 arcmin in Right Ascension and 0.17 arcmin in declination);

Key facts about HR1687

5.9
Main-sequence

HR1687 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -35.8°
Azimuth: 325.1°
Direction: North-West

Celestial coordinates and finder chart of HR1687

HR1687 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 HR1687 are provided in the following table:

05h 11m 19s
-02° 29’ 26”
203.27°
-23.33°
Orion

The simplified sky map below shows the position of HR1687 in the sky:

Finder chart HR1687 star
Simplified finder chart for HR1687.

Visibility of HR1687 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 HR1687 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: 92.5°
Max altitude: 36.0°
Azimuth: 267.5°

Distance of HR1687 from the Sun and relative movement

HR1687 is distant 125.19 light years from the Sun and it is moving far from the Sun at the speed of 31 kilometers per second.

38.40 pc
125.19 ly
31 km/s
0.079 arcsec/year
0.001 arcsec/year

Spectral properties of HR1687

HR1687 belongs to spectral class F5 and has a luminosity class of V corresponding to a main-sequence star.

2.98
F5V
6576K

The red dot in the diagram below shows where HR1687 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1687. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1687

SAO131852
SAO131852