99 Herculis is a multiple main-sequence star in the constellation of Hercules.
99 Herculis visual magnitude is 5.04. Because of its reltive faintness, 99 Herculis 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 99 Herculis:
Celestial coordinates and finder chart of 99 Herculis
99 Herculis 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 99 Herculis are provided in the following table:
The simplified sky map below shows the position of 99 Herculis in the sky:
Visibility of 99 Herculis from your location
Today's 99 Herculis rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of 99 Herculis
The image below is a photograph of 99 Herculis 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 99 Herculis is -0.094 arcsec per year in Right Ascension and 0.071 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of 99 Herculis from the Sun and relative movement
99 Herculis is distant 51.03 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.
Spectral properties of 99 Herculis
99 Herculis belongs to spectral class F7 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where 99 Herculis is situated in the Hertzsprung–Russell diagram.
99 Herculis star system properties
99 Herculis 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 99 Herculis double sysyem: