γ2 Delphini (gamma2 Delphini)

Below the horizon. Rise: 14:55 | Tran: 22:18 | Set: 5:45

Alt: -12.18° Az: 316.87° Direction: North-West

γ2 Delphini is a double sub-giant star of spectral class K1 in the constellation of Delphinus.

γ2 Delphini visual magnitude is 4.27. Because of its moderate brightness, γ2 Delphini is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of γ2 Delphini (gamma2 Delphini) star

DSS2 image of γ2 Delphini. The red arrow shows the motion of γ2 Delphini during the next 1000 years (-0.53 arcmin in Right Ascension and -3.28 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 47m 48s

Declination +16° 12’ 56”

Hour Angle 09h 03m 33s

Sideral Time 05h 51m 22s

J2000

Right Ascension 20h 46m 39s

Declination +16° 07’ 27”

Galactic Coordinates

Galactic Longitude 61.5°

Galactic Latitude -16.58°

Finder Chart

Simplified finder chart for γ2 Delphini (gamma2 Delphini).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.27

Class Sub-giant

Absolute magnitude 1.81

Spectral Type K1IV

Color Index (B-V) 1.04

Temperature 4649K

The red dot in the diagram below shows where γ2 Delphini is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of γ2 Delphini. Attribution: Richard Powell / CC BY-SA

Star System Properties

γ2 Delphini 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 γ2 Delphini double sysyem:

Main star magnitude 4.27

Secondary star magnitude 5.27

Magnitude difference 1

Separation 9.8 arcsec

Distance, Radial Speed, Proper Motion

γ2 Delphini is distant 101.43 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

Distance (parsec) 31.11

Distance (light year) 101.43

Radial Speed -7 km/s

Proper Motion RA -0.032 arcsec/y

Proper Motion Dec -0.197"/y

Alternative Designations

Bayer designation γ2 Delphini
(gamma2 Delphini)

Flamsteed designation 12 Delphini

Henry Draper Catalogue HD197964

SAO Catalogue SAO106476

Hipparcos Catalogue HIP102532

Durchmusterung Catalogue BD+15 4255

FK5 Catalogue 1541

Aitken Double Star Catalogue ADS14279

Visibility from Your Location

Today's γ2 Delphini (gamma2 Delphini) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 73.8° RISE 14:55

Max altitude: 54.7° TRANSIT 22:18

Azimuth: 286.2° SET 5:45

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

Location

Other stars in Delphinus