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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:52  
clear_day Transit: 12:11  
SunsetSet: 17:31
sunny DaytimeWhat's Visible Now?
All Constellations » Aquila » 

HR7554

Altitude: 43.3°   Azimuth: 151.6°   Direction: South-South-East

HR7554 is a variable sub-giant star in the constellation of Aquila.

HR7554 visual magnitude is 6.51. Because of its reltive faintness, HR7554 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR7554 is 0.005 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR7554 star
DSS2 image of HR7554. The red arrow shows the motion of HR7554 during the next 100000 years (8.33 arcmin in Right Ascension and 1.67 arcmin in declination);

Key facts about HR7554

6.51
Sub-giant

HR7554 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 43.3°
Azimuth: 151.6°
Direction: South-South-East

Celestial coordinates and finder chart of HR7554

HR7554 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 HR7554 are provided in the following table:

19h 50m 17s
+07° 54’ 08”
46.83°
-9.28°
Aquila

The simplified sky map below shows the position of HR7554 in the sky:

Finder chart HR7554 star
Simplified finder chart for HR7554.

Visibility of HR7554 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 HR7554 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: 82.1°
Max altitude: 46.4°
Azimuth: 277.9°

Distance of HR7554 from the Sun and relative movement

HR7554 is distant 1,552.38 light years from the Sun and it is moving towards the Sun at the speed of 30 kilometers per second.

476.19 pc
1,552.38 ly
-30 km/s
0.005 arcsec/year
0.001 arcsec/year

Spectral properties of HR7554

HR7554 belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.

-1.88
B2IV
11573K

The red dot in the diagram below shows where HR7554 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7554. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7554

SAO125116
SAO125116