99 Tauri

Altitude: 61.2° Azimuth: 158.8° Direction: South-South-East

99 Tauri is a multiple giant star in the constellation of Taurus.

99 Tauri visual magnitude is 5.79. Because of its reltive faintness, 99 Tauri 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 Tauri:

Color of 99 Tauri ⬤

Magnitude of 99 Tauri 5.79

Class Giant

VISIBILITY RIGHT NOW

99 Tauri is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 61.2°
Azimuth: 158.8°
Direction: South-South-East

Celestial coordinates and finder chart of 99 Tauri

99 Tauri 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 99 Tauri are provided in the following table:

Right Ascension J2000 04h 57m 48s

Declination J2000 +23° 56’ 54”

Galactic Longitude 178.09°

Galactic Latitude -11.64°

Constellation Taurus

The simplified sky map below shows the position of 99 Tauri in the sky:

Simplified finder chart for 99 Tauri.

Visibility of 99 Tauri 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 99 Tauri 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: 66.1° RISE 4:54

Max altitude: 62.5° TRANSIT 13:07

Azimuth: 293.9° SET 21:20

RIGHT NOW 99 Tauri is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 99 Tauri

The image below is a photograph of 99 Tauri 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 Tauri is 0.008 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of 99 Tauri. The red arrow shows the motion of 99 Tauri during the next 100000 years (13.33 arcmin in Right Ascension and -11.67 arcmin in declination);

Distance of 99 Tauri from the Sun and relative movement

99 Tauri is distant 471.10 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

Distance (parsec) 144.51 pc

Distance (light year) 471.10 ly

Heliocentric radial velocity 4 km/s

Proper Motion RA 0.008 arcsec/year

Proper Motion Dec -0.007 arcsec/year

Spectral properties of 99 Tauri

99 Tauri belongs to spectral class G8

Absolute magnitude -0.01

Spectral Type G8

Color Index (B-V) 1.11

Temperature of 99 Tauri 4493K

The red dot in the diagram below shows where 99 Tauri is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 99 Tauri. Attribution: Richard Powell / CC BY-SA

99 Tauri star system properties

99 Tauri 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 99 Tauri double sysyem:

Main star magnitude 5.79

Secondary star magnitude 12.19

Magnitude difference 6.4

Separation 103.5 arcsec

Alternative designations of 99 Tauri

Flamsteed designation 99 Tauri

Henry Draper Catalogue HD31553

SAO Catalogue SAO76858

Hipparcos Catalogue HIP23068

Durchmusterung Catalogue BD+23 777

Aitken Double Star Catalogue ADS3557

In Evidence

Other stars in Taurus