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A Complete Guide to the Solar System and the Night Sky
public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 5:26 
Transit: 12:55 
Sunset: 20:25
sunny   (Daytime)   What's Visible Now?
All Constellations » Delphinus » 

ι Delphini (iota Delphini)

Altitude: 26.6°   Azimuth: 254.0°   Direction: West-South-West

ι Delphini is a main-sequence star in the constellation of Delphinus.

ι Delphini visual magnitude is 5.43. Because of its reltive faintness, ι Delphini should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of ι Delphini is 0.04 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ι Delphini (iota Delphini) star
DSS2 image of ι Delphini. The red arrow shows the motion of ι Delphini during the next 10000 years (6.67 arcmin in Right Ascension and -1.17 arcmin in declination);

Key facts about ι Delphini

5.43
Main-sequence

ι Delphini (iota Delphini) is above the horizon from Greenwich, United Kingdom.

Altitude: 26.6°
Azimuth: 254.0°
Direction: West-South-West

Celestial coordinates and finder chart of ι Delphini

ι Delphini is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of ι Delphini are provided in the following table:

20h 37m 49s
+11° 22’ 40”
56.13°
-17.5°
Delphinus

The simplified sky map below shows the position of ι Delphini in the sky:

Finder chart ι Delphini (iota Delphini) star
Simplified finder chart for ι Delphini (iota Delphini).

Visibility of ι Delphini from your location

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

Today's ι Delphini (iota Delphini) rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):

Azimuth: 78.6°
Max altitude: 49.9°
Azimuth: 281.4°

Distance of ι Delphini from the Sun and relative movement

ι Delphini is distant 177.17 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

54.35 pc
177.17 ly
-4 km/s
0.04 arcsec/year
-0.007 arcsec/year

Spectral properties of ι Delphini

ι Delphini belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.

1.75
A2V
9434K

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

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

Alternative designations of ι Delphini

ι Delphini
(iota Delphini)
SAO106322
SAO106322