70 Cygni

Above the horizon. Rise: 11:48 | Tran: 22:35 | Set: 9:26

Alt: 25.36° Az: 298.65° Direction: West-North-West

70 Cygni is a main-sequence star of spectral class B3 in the constellation of Cygnus.

70 Cygni visual magnitude is 5.31. Because of its faintness, 70 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 70 Cygni. The red arrow shows the motion of 70 Cygni during the next 100000 years (0.00 arcmin in Right Ascension and 3.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 21h 28m 21s

Declination +37° 13’ 30”

Hour Angle 06h 20m 47s

Sideral Time 03h 49m 09s

J2000

Right Ascension 21h 27m 21s

Declination +37° 07’ 00”

Galactic Coordinates

Galactic Longitude 83.94°

Galactic Latitude -9.86°

Finder Chart

Simplified finder chart for 70 Cygni.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.31

Class Main-sequence

Absolute magnitude -3.37

Spectral Type B3V

Color Index (B-V) -0.14

Temperature 12293K

The red dot in the diagram below shows where 70 Cygni is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 70 Cygni. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

70 Cygni is distant 1,771.74 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

Distance (parsec) 543.48

Distance (light year) 1,771.74

Radial Speed -20 km/s

Proper Motion Dec 0.002"/y

Alternative Designations

Flamsteed designation 70 Cygni

Henry Draper Catalogue HD204403

SAO Catalogue SAO71358

Hipparcos Catalogue HIP105942

Durchmusterung Catalogue BD+36 4568

FK5 Catalogue 3714

Visibility from Your Location

Today's 70 Cygni rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 52.8° RISE 11:48

Max altitude: 75.7° TRANSIT 22:35

Azimuth: 307.2° SET 9:26

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

Location

Other stars in Cygnus