We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support keeps us free & ad-free » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:50  
clear_day Transit: 12:11  
SunsetSet: 17:32
sleep NighttimeWhat's Visible Now?
All Constellations » Serpens » 

HR5654

Altitude: 38.6°   Azimuth: 109.6°   Direction: East-South-East

HR5654 is a variable and double giant star in the constellation of Serpens.

HR5654 visual magnitude is 5.89. Because of its reltive faintness, HR5654 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 HR5654 is -0.017 arcsec per year in Right Ascension and 0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR5654 star
DSS2 image of HR5654. The red arrow shows the motion of HR5654 during the next 10000 years (-2.83 arcmin in Right Ascension and 0.83 arcmin in declination);

Key facts about HR5654

5.89
Giant

HR5654 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 38.6°
Azimuth: 109.6°
Direction: East-South-East

Celestial coordinates and finder chart of HR5654

HR5654 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 HR5654 are provided in the following table:

15h 12m 04s
+18° 58’ 32”
26.32°
56.76°
Serpens

The simplified sky map below shows the position of HR5654 in the sky:

Finder chart HR5654 star
Simplified finder chart for HR5654.

Visibility of HR5654 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 HR5654 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: 71.0°
Max altitude: 57.5°
Azimuth: 289.0°

Distance of HR5654 from the Sun and relative movement

HR5654 is distant 829.52 light years from the Sun and it is moving towards the Sun at the speed of 35 kilometers per second.

254.45 pc
829.52 ly
-35 km/s
-0.017 arcsec/year
0.005 arcsec/year

Spectral properties of HR5654

HR5654 belongs to spectral class M4 and has a luminosity class of III corresponding to a giant star.

-1.14
M4III
3749K

The red dot in the diagram below shows where HR5654 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5654. Attribution: Richard Powell / CC BY-SA

HR5654 star system properties

HR5654 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR5654 double sysyem:

5.89
7.79
1.9
0.5 arcsec

Alternative designations of HR5654

SAO101429
SAO101429