25 Monocerotis

Above the horizon. Rise: 16:28 | Tran: 22:05 | Set: 3:46

Alt: 13.06° Az: 114.29° Direction: East-South-East

25 Monocerotis is a variable and multiple giant star of spectral class F6 in the constellation of Monoceros.

25 Monocerotis visual magnitude is 5.13. Because of its faintness, 25 Monocerotis 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 25 Monocerotis. The red arrow shows the motion of 25 Monocerotis during the next 10000 years (-11.33 arcmin in Right Ascension and 2.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 07h 38m 31s

Declination -04° 10’ 08”

Hour Angle 19h 48m 23s

Sidereal Time 03h 26m 54s

J2000

Right Ascension 07h 37m 16s

Declination -04° 06’ 39”

Galactic Coordinates

Galactic Longitude 221.89°

Galactic Latitude 8.26°

Finder Chart

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Finder chart for 25 Monocerotis.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.13

Class Giant

Absolute magnitude 1.17

Spectral Type F6III

Color Index (B-V) 0.44

Temperature 6674K

The red dot in the diagram below shows where 25 Monocerotis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 25 Monocerotis. Attribution: Richard Powell / CC BY-SA

Star System Properties

25 Monocerotis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 25 Monocerotis double sysyem:

Main star magnitude 5.13

Secondary star magnitude 10.43

Magnitude difference 5.3

Separation 121.7 arcsec

Distance, Radial Speed, Proper Motion

25 Monocerotis is distant 202.36 light years from the Sun and it is moving far from the Sun at the speed of 46 kilometers per second.

Distance (parsec) 62.07

Distance (light year) 202.36

Radial Speed 46 km/s

Proper Motion RA -0.068 arcsec/y

Proper Motion Dec 0.017"/y

Alternative Designations

Flamsteed designation 25 Monocerotis

Henry Draper Catalogue HD61064

SAO Catalogue SAO134899

Hipparcos Catalogue HIP37088

Durchmusterung Catalogue BD-03 1979

FK5 Catalogue 289

General Catalogue of Variable Stars 3665

Visibility from Your Location

Today's 25 Monocerotis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 94.2° RISE 16:28

Max altitude: 34.4° TRANSIT 22:05

Azimuth: 265.8° SET 3:46

Set Location

Other stars in Monoceros