Acamar - θ1 Eridani (theta1 Eridani)
Acamar, also designated as θ1 Eridani (theta1 Eridani), is a variable and double giant star in the constellation of Eridanus.
Acamar visual magnitude is 3.24. Because of its moderate brightness, Acamar should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.
The table below summarizes the key facts about Acamar:
Celestial coordinates and finder chart of Acamar
Acamar is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Acamar are provided in the following table:
The simplified sky map below shows the position of Acamar in the sky:
Visibility of Acamar from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Acamar - θ1 Eridani (theta1 Eridani) is currently not visible from Greenwich, United Kingdom
Digitized Sky Survey image of Acamar
The image below is a photograph of Acamar 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 Acamar is -0.045 arcsec per year in Right Ascension and 0.019 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of Acamar from the Sun and relative movement
Acamar is distant 161.23 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.
Spectral properties of Acamar
Acamar belongs to spectral class A4 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where Acamar is situated in the Hertzsprung–Russell diagram.
Acamar star system properties
Acamar is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the Acamar double sysyem: