Atlas - 27 Tauri

Above the horizon. Rise: 20:34 | Tran: 4:52 | Set: 13:06

Alt: 13.01° Az: 292.55° Direction: West-North-West

Atlas, also designated as 27 Tauri , is a variable and multiple giant star of spectral class B8 in the constellation of Taurus.

Atlas visual magnitude is 3.63. Because of its moderate brightness, Atlas is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of Atlas. The red arrow shows the motion of Atlas during the next 10000 years (3.00 arcmin in Right Ascension and -7.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 03h 50m 38s

Declination +24° 07’ 38”

Hour Angle 06h 38m 22s

Sideral Time 10h 29m 01s

J2000

Right Ascension 03h 49m 09s

Declination +24° 03’ 11”

Galactic Coordinates

Galactic Longitude 167.01°

Galactic Latitude -23.23°

Finder Chart

Simplified finder chart for Atlas - 27 Tauri.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.63

Class Giant

Absolute magnitude -1.71

Spectral Type B8III

Color Index (B-V) -0.09

Temperature 11407K

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

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

Star System Properties

Atlas 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 Atlas double sysyem:

Main star magnitude 3.63

Secondary star magnitude 5.13

Magnitude difference 1.5

Separation 0 arcsec

Distance, Radial Speed, Proper Motion

Atlas is distant 380.40 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

Distance (parsec) 116.69

Distance (light year) 380.40

Radial Speed 9 km/s

Proper Motion RA 0.018 arcsec/y

Proper Motion Dec -0.047"/y

Alternative Designations

Proper Name Atlas

Flamsteed designation 27 Tauri

Henry Draper Catalogue HD23850

SAO Catalogue SAO76228

Hipparcos Catalogue HIP17847

Durchmusterung Catalogue BD+23 557

FK5 Catalogue 142

General Catalogue of Variable Stars 1345

Aitken Double Star Catalogue ADS2786

Visibility from Your Location

Today's Atlas - 27 Tauri rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 65.9° RISE 20:34

Max altitude: 62.6° TRANSIT 4:52

Azimuth: 294.1° SET 13:06

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Taurus