θ Delphini (theta Delphini)

Above the horizon. Rise: 21:49 | Tran: 5:00 | Set: 12:07

Alt: 35.80° Az: 116.56° Direction: East-South-East

θ Delphini is a supergiant star of spectral class K3 in the constellation of Delphinus.

θ Delphini visual magnitude is 5.72. Because of its faintness, θ Delphini 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.

Image of θ Delphini (theta Delphini) star

DSS2 image of θ Delphini. The red arrow shows the motion of θ Delphini during the next 100000 years (-1.67 arcmin in Right Ascension and -6.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 39m 55s

Declination +13° 24’ 20”

Hour Angle 20h 47m 05s

Sidereal Time 17h 27m 01s

J2000

Right Ascension 20h 38m 43s

Declination +13° 18’ 53”

Galactic Coordinates

Galactic Longitude 57.95°

Galactic Latitude -16.61°

Finder Chart

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Finder chart for θ Delphini (theta Delphini).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.72

Class Supergiant

Absolute magnitude -2.29

Spectral Type K3I

Color Index (B-V) 1.53

Temperature 3749K

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

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

Distance, Radial Speed, Proper Motion

θ Delphini is distant 1,304.00 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

Distance (parsec) 400.00

Distance (light year) 1,304.00

Radial Speed -14 km/s

Proper Motion RA -0.001 arcsec/y

Proper Motion Dec -0.004"/y

Alternative Designations

Bayer designation θ Delphini
(theta Delphini)

Flamsteed designation 8 Delphini

Henry Draper Catalogue HD196725

SAO Catalogue SAO106342

Hipparcos Catalogue HIP101882

Durchmusterung Catalogue BD+12 4411

Visibility from Your Location

Today's θ Delphini (theta Delphini) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 76.6° RISE 21:49

Max altitude: 51.9° TRANSIT 5:00

Azimuth: 283.4° SET 12:07

Set Location

Other stars in Delphinus