Your guide to the Solar System and the night sky
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🌎  Greenwich, United Kingdom [change]

1 Vulpeculae

1 Vulpeculae is a variable and multiple sub-giant star in the constellation of Vulpecula.

1 Vulpeculae visual magnitude is 4.77. Because of its moderate brightness, 1 Vulpeculae should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about 1 Vulpeculae:

4.77
Sub-giant
1 Vulpeculae is above the horizon from Greenwich, United Kingdom [change]. Altitude: 32°.

Celestial coordinates and finder chart of 1 Vulpeculae

1 Vulpeculae 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 1 Vulpeculae are provided in the following table:

19h 16m 13s
+21° 23’ 25”
54.74°
4.41°
Vulpecula

The simplified sky map below shows the position of 1 Vulpeculae in the sky:

Finder chart 1 Vulpeculae star
Simplified finder chart for 1 Vulpeculae.

Visibility of 1 Vulpeculae from your location

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

Today's 1 Vulpeculae rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 68.6°
Max altitude: 59.9°
Azimuth: 291.4°
1 Vulpeculae is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 1 Vulpeculae

The image below is a photograph of 1 Vulpeculae 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 1 Vulpeculae is 0 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of 1 Vulpeculae star
DSS2 image of 1 Vulpeculae. The red arrow shows the motion of 1 Vulpeculae during the next 100000 years (0.00 arcmin in Right Ascension and -15.00 arcmin in declination);

Distance of 1 Vulpeculae from the Sun and relative movement

1 Vulpeculae is distant 910.61 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

279.33 pc
910.61 ly
-17 km/s
-0.009 arcsec/year

Spectral properties of 1 Vulpeculae

1 Vulpeculae belongs to spectral class B4 and has a luminosity class of IV corresponding to a sub-giant star.

-2.46
B4IV
10795K

The red dot in the diagram below shows where 1 Vulpeculae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 1 Vulpeculae. Attribution: Richard Powell / CC BY-SA

1 Vulpeculae star system properties

1 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 1 Vulpeculae double sysyem:

4.77
11.87
7.1
39.1 arcsec

Alternative designations of 1 Vulpeculae

1 Vulpeculae
SAO87010
SAO87010