Talitha - ι Ursae Majoris (iota Ursae Majoris)

Altitude: 22.0° Azimuth: 38.6° Direction: North-East

Talitha, also designated as ι Ursae Majoris (iota Ursae Majoris), is a variable and multiple sub-giant star in the constellation of Ursa Major.

Talitha visual magnitude is 3.14. Because of its moderate brightness, Talitha 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 Talitha:

Color of Talitha ⬤

Magnitude of Talitha 3.14

Class Sub-giant

VISIBILITY RIGHT NOW

Talitha - ι Ursae Majoris (iota Ursae Majoris) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 22.0°
Azimuth: 38.6°
Direction: North-East

Celestial coordinates and finder chart of Talitha

Talitha 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 Talitha are provided in the following table:

Right Ascension J2000 08h 59m 12s

Declination J2000 +48° 02’ 30”

Galactic Longitude 171.51°

Galactic Latitude 40.84°

Constellation Ursa Major

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

Finder chart Talitha - ι Ursae Majoris (iota Ursae Majoris) star

Simplified finder chart for Talitha - ι Ursae Majoris (iota Ursae Majoris).

Visibility of Talitha from your location

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

Talitha - ι Ursae Majoris (iota Ursae Majoris) is circumpolar and transits at 03:40 UTC (altitude: 86.6°)

Digitized Sky Survey image of Talitha

The image below is a photograph of Talitha 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 Talitha is -0.444 arcsec per year in Right Ascension and -0.226 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of Talitha - ι Ursae Majoris (iota Ursae Majoris) star

DSS2 image of Talitha. The red arrow shows the motion of Talitha during the next 1000 years (-7.40 arcmin in Right Ascension and -3.77 arcmin in declination);

Distance of Talitha from the Sun and relative movement

Talitha is distant 47.72 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

Distance (parsec) 14.64 pc

Distance (light year) 47.72 ly

Heliocentric radial velocity 9 km/s

Proper Motion RA -0.444 arcsec/year

Proper Motion Dec -0.226 arcsec/year

Spectral properties of Talitha

Talitha belongs to spectral class A7 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude 2.31

Spectral Type A7IV

Color Index (B-V) 0.19

Temperature of Talitha 8241K

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

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

Talitha star system properties

Talitha 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 Talitha double sysyem:

Main star magnitude 3.14

Secondary star magnitude 10.34

Magnitude difference 7.2

Separation 3.9 arcsec

Alternative designations of Talitha

Proper Name Talitha

Bayer designation ι Ursae Majoris
(iota Ursae Majoris)

Flamsteed designation 9 Ursae Majoris

Henry Draper Catalogue HD76644

SAO Catalogue SAO42630

Hipparcos Catalogue HIP44127

Durchmusterung Catalogue BD+48 1707

Gliese Catalogue Gl 331 A

FK5 Catalogue 335

General Catalogue of Variable Stars 4329

Aitken Double Star Catalogue ADS7114

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