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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:42  
clear_day Transit: 12:10  
SunsetSet: 17:40
sunny DaytimeWhat's Visible Now?
All Constellations » Serpens » 

μ Serpentis (mu Serpentis)

Altitude: -33.1°   Azimuth: 314.7°   Direction: North-West

μ Serpentis is a hypergiant star in the constellation of Serpens.

μ Serpentis visual magnitude is 3.53. Because of its moderate brightness, μ Serpentis should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of μ Serpentis is -0.086 arcsec per year in Right Ascension and -0.024 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of μ Serpentis (mu Serpentis) star
DSS2 image of μ Serpentis. The red arrow shows the motion of μ Serpentis during the next 10000 years (-14.33 arcmin in Right Ascension and -4.00 arcmin in declination);

Key facts about μ Serpentis

3.53
Hypergiant

μ Serpentis (mu Serpentis) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -33.1°
Azimuth: 314.7°
Direction: North-West

Celestial coordinates and finder chart of μ Serpentis

μ Serpentis 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 μ Serpentis are provided in the following table:

15h 49m 37s
-03° 25’ 49”
4.59°
37.29°
Serpens

The simplified sky map below shows the position of μ Serpentis in the sky:

Finder chart μ Serpentis (mu Serpentis) star
Simplified finder chart for μ Serpentis (mu Serpentis).

Visibility of μ Serpentis 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 μ Serpentis (mu Serpentis) 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: 93.4°
Max altitude: 35.1°
Azimuth: 266.6°

Distance of μ Serpentis from the Sun and relative movement

μ Serpentis is distant 155.68 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

47.76 pc
155.68 ly
-9 km/s
-0.086 arcsec/year
-0.024 arcsec/year

Spectral properties of μ Serpentis

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

0.13
A0V
10653K

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

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

Alternative designations of μ Serpentis

μ Serpentis
(mu Serpentis)
32 Serpentis
SAO140787
SAO140787