HR40

Above the horizon. Rise: 16:35 | Tran: 1:17 | Set: 9:54

Alt: 64.86° Az: 197.47° Direction: South-South-West

HR40 is a multiple hypergiant star of spectral class G0 in the constellation of Andromeda.

HR40 visual magnitude is 6.3. Because of its faintness, HR40 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of HR40. The red arrow shows the motion of HR40 during the next 10000 years (-1.33 arcmin in Right Ascension and -7.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 00h 14m 41s

Declination +27° 07’ 28”

Hour Angle 00h 32m 56s

Sideral Time 00h 47m 37s

J2000

Right Ascension 00h 13m 23s

Declination +26° 59’ 13”

Galactic Coordinates

Galactic Longitude 112.56°

Galactic Latitude -35.12°

Finder Chart

Simplified finder chart for HR40.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.3

Class Hypergiant

Absolute magnitude 0.84

Spectral Type G0III

Color Index (B-V) 0.65

Temperature 5778K

The red dot in the diagram below shows where HR40 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR40. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR40 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 HR40 double sysyem:

Main star magnitude 6.3

Secondary star magnitude 7.4

Magnitude difference 1.1

Separation 0.1 arcsec

Distance, Radial Speed, Proper Motion

HR40 is distant 403.47 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

Distance (parsec) 123.76

Distance (light year) 403.47

Radial Speed -13 km/s

Proper Motion RA -0.008 arcsec/y

Proper Motion Dec -0.047"/y

Alternative Designations

Henry Draper Catalogue HD895

SAO Catalogue SAO73823

Hipparcos Catalogue HIP1076

Durchmusterung Catalogue BD+26 13

Aitken Double Star Catalogue ADS161

Visibility from Your Location

Today's HR40 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 62.9° RISE 16:35

Max altitude: 65.6° TRANSIT 1:17

Azimuth: 297.1° SET 9:54

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

Location

Other stars in Andromeda