98 Herculis

Altitude: 4.3° Azimuth: 59.1° Direction: East-North-East

98 Herculis is a variable giant star in the constellation of Hercules.

98 Herculis visual magnitude is 5.06. Because of its reltive faintness, 98 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 98 Herculis:

Color of 98 Herculis ⬤

Magnitude of 98 Herculis 5.06

Class Giant

VISIBILITY RIGHT NOW

98 Herculis is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 4.3°
Azimuth: 59.1°
Direction: East-North-East

Celestial coordinates and finder chart of 98 Herculis

98 Herculis 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 98 Herculis are provided in the following table:

Right Ascension J2000 18h 06m 01s

Declination J2000 +22° 13’ 08”

Galactic Longitude 48.53°

Galactic Latitude 19.55°

Constellation Hercules

The simplified sky map below shows the position of 98 Herculis in the sky:

Simplified finder chart for 98 Herculis.

Visibility of 98 Herculis 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 98 Herculis 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: 67.8° RISE 10:24

Max altitude: 60.7° TRANSIT 18:25

Azimuth: 292.2° SET 2:30

Digitized Sky Survey image of 98 Herculis

The image below is a photograph of 98 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 98 Herculis is -0.01 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 98 Herculis. The red arrow shows the motion of 98 Herculis during the next 10000 years (-1.67 arcmin in Right Ascension and -1.33 arcmin in declination);

Distance of 98 Herculis from the Sun and relative movement

98 Herculis is distant 615.09 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

Distance (parsec) 188.68 pc

Distance (light year) 615.09 ly

Heliocentric radial velocity -20 km/s

Proper Motion RA -0.01 arcsec/year

Proper Motion Dec -0.008 arcsec/year

Spectral properties of 98 Herculis

98 Herculis belongs to spectral class M3 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -1.32

Spectral Type M3III

Color Index (B-V) 1.58

Temperature of 98 Herculis 3677K

The red dot in the diagram below shows where 98 Herculis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 98 Herculis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 98 Herculis

Flamsteed designation 98 Herculis

Henry Draper Catalogue HD165625

SAO Catalogue SAO85725

Hipparcos Catalogue HIP88657

Durchmusterung Catalogue BD+22 3273

General Catalogue of Variable Stars 10208

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In Evidence

Other stars in Hercules