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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:55  
clear_day Transit: 12:49  
SunsetSet: 18:41 south
sleep NighttimeWhat's Visible Now
All Constellations » Vulpecula » 

HR7988

Altitude: 34.0°   Azimuth: 274.0°   Direction: West

HR7988 is a variable supergiant star in the constellation of Vulpecula.

HR7988 visual magnitude is 5.77. Because of its reltive faintness, HR7988 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 HR7988:

5.77
Supergiant

HR7988 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 34.0°
Azimuth: 274.0°
Direction: West

Celestial coordinates and finder chart of HR7988

HR7988 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 HR7988 are provided in the following table:

20h 51m 28s
+28° 15’ 02”
72.13°
-10.15°
Vulpecula

The simplified sky map below shows the position of HR7988 in the sky:

Finder chart HR7988 star
Simplified finder chart for HR7988.

Visibility of HR7988 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 HR7988 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: 61.7°
Max altitude: 66.8°
Azimuth: 298.3°

Digitized Sky Survey image of HR7988

The image below is a photograph of HR7988 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 HR7988 is 0.003 arcsec per year in Right Ascension and -0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR7988 star
DSS2 image of HR7988. The red arrow shows the motion of HR7988 during the next 100000 years (5.00 arcmin in Right Ascension and -5.00 arcmin in declination);

Distance of HR7988 from the Sun and relative movement

HR7988 is distant 1,671.79 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

512.82 pc
1,671.79 ly
-1 km/s
0.003 arcsec/year
-0.003 arcsec/year

Spectral properties of HR7988

HR7988 belongs to spectral class F5 and has a luminosity class of I corresponding to a supergiant star.

-2.78
F5I
5534K

The red dot in the diagram below shows where HR7988 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7988. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7988

SAO89216
SAO89216