49 Cygni

Altitude: 34.2° Azimuth: 79.4° Direction: East

49 Cygni is a multiple bright giant star in the constellation of Cygnus.

49 Cygni visual magnitude is 5.51. Because of its reltive faintness, 49 Cygni should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 49 Cygni:

Color of 49 Cygni ⬤

Magnitude of 49 Cygni 5.51

Class Bright giant

VISIBILITY RIGHT NOW

49 Cygni is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 34.2°
Azimuth: 79.4°
Direction: East

Celestial coordinates and finder chart of 49 Cygni

49 Cygni is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 49 Cygni are provided in the following table:

Right Ascension J2000 20h 41m 02s

Declination J2000 +32° 18’ 25”

Galactic Longitude 73.96°

Galactic Latitude -5.88°

Constellation Cygnus

The simplified sky map below shows the position of 49 Cygni in the sky:

Simplified finder chart for 49 Cygni.

Visibility of 49 Cygni from your location

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

Today's 49 Cygni rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 57.7° RISE 6:28

Max altitude: 70.8° TRANSIT 15:56

Azimuth: 302.3° SET 1:27

Digitized Sky Survey image of 49 Cygni

The image below is a photograph of 49 Cygni from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of 49 Cygni is 0.007 arcsec per year in Right Ascension and -0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 49 Cygni. The red arrow shows the motion of 49 Cygni during the next 10000 years (1.17 arcmin in Right Ascension and -2.33 arcmin in declination);

Distance of 49 Cygni from the Sun and relative movement

49 Cygni is distant 804.94 light years from the Sun and it is moving towards the Sun at the speed of 29 kilometers per second.

Distance (parsec) 246.91 pc

Distance (light year) 804.94 ly

Heliocentric radial velocity -29 km/s

Proper Motion RA 0.007 arcsec/year

Proper Motion Dec -0.014 arcsec/year

Spectral properties of 49 Cygni

49 Cygni belongs to spectral class G8 and has a luminosity class of II corresponding to a bright giant star.

Absolute magnitude -1.45

Spectral Type G8II

Color Index (B-V) 0.88

Temperature of 49 Cygni 5051K

The red dot in the diagram below shows where 49 Cygni is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 49 Cygni. Attribution: Richard Powell / CC BY-SA

49 Cygni star system properties

49 Cygni is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the 49 Cygni double sysyem:

Main star magnitude 5.51

Secondary star magnitude 7.81

Magnitude difference 2.3

Separation 2.5 arcsec

Alternative designations of 49 Cygni

Flamsteed designation 49 Cygni

Henry Draper Catalogue HD197177

SAO Catalogue SAO70362

Hipparcos Catalogue HIP102066

Durchmusterung Catalogue BD+31 4181

Aitken Double Star Catalogue ADS14158

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In Evidence

Other stars in Cygnus