42 Cygni

Above the horizon. Rise: 9:20 | Tran: 19:51 | Set: 6:25

Alt: 49.09° Az: 89.43° Direction: East

42 Cygni is a supergiant star of spectral class A1 in the constellation of Cygnus.

42 Cygni visual magnitude is 5.88. Because of its faintness, 42 Cygni 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 42 Cygni. The red arrow shows the motion of 42 Cygni during the next 100000 years (6.67 arcmin in Right Ascension and -1.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 30m 17s

Declination +36° 32’ 19”

Hour Angle 20h 21m 39s

Sidereal Time 16h 51m 56s

J2000

Right Ascension 20h 29m 20s

Declination +36° 27’ 16”

Galactic Coordinates

Galactic Longitude 75.85°

Galactic Latitude -1.47°

Finder Chart

Simplified finder chart for 42 Cygni.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.88

Class Supergiant

Absolute magnitude -2.69

Spectral Type A1I

Color Index (B-V) 0.52

Temperature 6300K

The red dot in the diagram below shows where 42 Cygni is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 42 Cygni. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

42 Cygni is distant 1,689.12 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

Distance (parsec) 518.13

Distance (light year) 1,689.12

Radial Speed -18 km/s

Proper Motion RA 0.004 arcsec/y

Proper Motion Dec -0.001"/y

Alternative Designations

Flamsteed designation 42 Cygni

Henry Draper Catalogue HD195324

SAO Catalogue SAO70096

Hipparcos Catalogue HIP101067

Durchmusterung Catalogue BD+35 4141

FK5 Catalogue 1535

Visibility from Your Location

Today's 42 Cygni rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 53.5° RISE 9:20

Max altitude: 75.1° TRANSIT 19:51

Azimuth: 306.5° SET 6:25

Set Location

Other stars in Cygnus