9 Vulpeculae

Below the horizon. Rise: 17:25 | Tran: 1:15 | Set: 9:00

Alt: -3.72° Az: 308.86° Direction: North-West

9 Vulpeculae is a variable and multiple giant star of spectral class B8 in the constellation of Vulpecula.

9 Vulpeculae visual magnitude is 5. Because of its moderate brightness, 9 Vulpeculae 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.

DSS2 image of 9 Vulpeculae. The red arrow shows the motion of 9 Vulpeculae during the next 100000 years (13.33 arcmin in Right Ascension and 3.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 19h 35m 42s

Declination +19° 49’ 50”

Hour Angle 08h 17m 14s

Sidereal Time 03h 52m 56s

J2000

Right Ascension 19h 34m 34s

Declination +19° 46’ 23”

Galactic Coordinates

Galactic Longitude 55.35°

Galactic Latitude -0.14°

Finder Chart

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Finder chart for 9 Vulpeculae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5

Class Giant

Absolute magnitude -1.35

Spectral Type B8III

Color Index (B-V) -0.09

Temperature 11407K

The red dot in the diagram below shows where 9 Vulpeculae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 9 Vulpeculae. Attribution: Richard Powell / CC BY-SA

Star System Properties

9 Vulpeculae is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 9 Vulpeculae double sysyem:

Main star magnitude 5

Secondary star magnitude 12.8

Magnitude difference 7.8

Separation 108.3 arcsec

Distance, Radial Speed, Proper Motion

9 Vulpeculae is distant 608.21 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

Distance (parsec) 186.57

Distance (light year) 608.21

Radial Speed 5 km/s

Proper Motion RA 0.008 arcsec/y

Proper Motion Dec 0.002"/y

Alternative Designations

Flamsteed designation 9 Vulpeculae

Henry Draper Catalogue HD184606

SAO Catalogue SAO104990

Hipparcos Catalogue HIP96275

Durchmusterung Catalogue BD+19 4063

General Catalogue of Variable Stars 12173

Aitken Double Star Catalogue ADS12622

Visibility from Your Location

Today's 9 Vulpeculae rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 70.2° RISE 17:25

Max altitude: 58.4° TRANSIT 1:15

Azimuth: 289.8° SET 9:00

In Evidence

Other stars in Vulpecula

9 Vulpeculae

Celestial Coordinates

Apparent

J2000

Galactic Coordinates

Finder Chart

Magnitude, Color, Spectral Class

Star System Properties

Distance, Radial Speed, Proper Motion

Alternative Designations

Visibility from Your Location

Set Location

In Evidence

Other stars in Vulpecula

9 Vulpeculae

Celestial Coordinates

Apparent

J2000

Galactic Coordinates

Finder Chart

Magnitude, Color, Spectral Class

Star System Properties

Distance, Radial Speed, Proper Motion

Alternative Designations

Visibility from Your Location