Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:36  ☀️ Transit: 13:02  🌅 Sunset: 19:29

ι1 Muscae (iota1 Muscae)

ι1 Muscae is a hypergiant star in the constellation of Musca.

ι1 Muscae visual magnitude is 5.05. Because of its reltive faintness, ι1 Muscae 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 ι1 Muscae:

ι1 Muscae (iota1 Muscae) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of ι1 Muscae

ι1 Muscae is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of ι1 Muscae are provided in the following table:

13h 25m 07s
-74° 53’ 16”

The simplified sky map below shows the position of ι1 Muscae in the sky:

Finder chart ι1 Muscae (iota1 Muscae) star
Simplified finder chart for ι1 Muscae (iota1 Muscae).

Visibility of ι1 Muscae from your location

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

ι1 Muscae (iota1 Muscae) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of ι1 Muscae

The image below is a photograph of ι1 Muscae 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 ι1 Muscae is -0.115 arcsec per year in Right Ascension and -0.13 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ι1 Muscae (iota1 Muscae) star
DSS2 image of ι1 Muscae. The red arrow shows the motion of ι1 Muscae during the next 1000 years (-1.92 arcmin in Right Ascension and -2.17 arcmin in declination);

Distance of ι1 Muscae from the Sun and relative movement

ι1 Muscae is distant 224.67 light years from the Sun and it is moving far from the Sun at the speed of 28 kilometers per second.

68.92 pc
224.67 ly
28 km/s
-0.115 arcsec/year
-0.13 arcsec/year

Spectral properties of ι1 Muscae

ι1 Muscae belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where ι1 Muscae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ι1 Muscae. Attribution: Richard Powell / CC BY-SA

Alternative designations of ι1 Muscae

ι1 Muscae
(iota1 Muscae)