Mothallah - α Trianguli (alpha Trianguli)
Mothallah, also designated as α Trianguli (alpha Trianguli), is a multiple sub-giant star in the constellation of Triangulum.
Mothallah visual magnitude is 3.41. Because of its moderate brightness, Mothallah 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 Mothallah:
Celestial coordinates and finder chart of Mothallah
Mothallah is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Mothallah are provided in the following table:
The simplified sky map below shows the position of Mothallah in the sky:
Visibility of Mothallah from your location
Digitized Sky Survey image of Mothallah
The image below is a photograph of Mothallah 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 Mothallah is 0.011 arcsec per year in Right Ascension and -0.235 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of Mothallah from the Sun and relative movement
Mothallah is distant 64.08 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.
Spectral properties of Mothallah
Mothallah belongs to spectral class F6 and has a luminosity class of IV corresponding to a sub-giant star.
The red dot in the diagram below shows where Mothallah is situated in the Hertzsprung–Russell diagram.
Mothallah star system properties
Mothallah 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 Mothallah double sysyem: