Tianyi - 7 Draconis

Above the horizon. Circumpolar today

Alt: 59.91° Az: 39.43° Direction: North-East

Tianyi, also designated as 7 Draconis , is a giant star of spectral class K5 in the constellation of Draco.

Tianyi visual magnitude is 5.43. Because of its faintness, Tianyi is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of Tianyi. The red arrow shows the motion of Tianyi during the next 10000 years (1.67 arcmin in Right Ascension and -0.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 48m 34s

Declination +66° 39’ 20”

Hour Angle 20h 26m 07s

Sideral Time 09h 14m 41s

J2000

Right Ascension 12h 47m 34s

Declination +66° 47’ 25”

Galactic Coordinates

Galactic Longitude 123.53°

Galactic Latitude 50.33°

Finder Chart

Simplified finder chart for Tianyi - 7 Draconis.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.43

Class Giant

Absolute magnitude -1.46

Spectral Type K5

Color Index (B-V) 1.56

Temperature 3705K

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

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

Distance, Radial Speed, Proper Motion

Tianyi is distant 778.04 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

Distance (parsec) 238.66

Distance (light year) 778.04

Radial Speed 8 km/s

Proper Motion RA 0.01 arcsec/y

Proper Motion Dec -0.005"/y

Alternative Designations

Proper Name Tianyi

Flamsteed designation 7 Draconis

Henry Draper Catalogue HD111335

SAO Catalogue SAO15902

Hipparcos Catalogue HIP62423

Durchmusterung Catalogue BD+67 764

FK5 Catalogue 3020

Visibility from Your Location

Tianyi - 7 Draconis is circumpolar and transits at 13:20 UTC (altitude: 74.8°)

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Draco