2 Cassiopeiae

Altitude: 27.0° Azimuth: 24.5° Direction: North-North-East

2 Cassiopeiae is a variable and multiple giant star in the constellation of Cassiopeia.

2 Cassiopeiae visual magnitude is 5.7. Because of its reltive faintness, 2 Cassiopeiae 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 2 Cassiopeiae:

Color of 2 Cassiopeiae ⬤

Magnitude of 2 Cassiopeiae 5.7

Class Giant

VISIBILITY RIGHT NOW

2 Cassiopeiae is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 27.0°
Azimuth: 24.5°
Direction: North-North-East

Celestial coordinates and finder chart of 2 Cassiopeiae

2 Cassiopeiae is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 2 Cassiopeiae are provided in the following table:

Right Ascension J2000 23h 09m 44s

Declination J2000 +59° 19’ 59”

Galactic Longitude 110.28°

Galactic Latitude -1.02°

Constellation Cassiopeia

The simplified sky map below shows the position of 2 Cassiopeiae in the sky:

Simplified finder chart for 2 Cassiopeiae.

Visibility of 2 Cassiopeiae from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

2 Cassiopeiae is circumpolar and transits at 22:39 UTC (altitude: 82.1°)

Digitized Sky Survey image of 2 Cassiopeiae

The image below is a photograph of 2 Cassiopeiae 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 2 Cassiopeiae is -0.003 arcsec per year in Right Ascension and 0.009 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of 2 Cassiopeiae. The red arrow shows the motion of 2 Cassiopeiae during the next 100000 years (-5.00 arcmin in Right Ascension and 15.00 arcmin in declination);

Distance of 2 Cassiopeiae from the Sun and relative movement

2 Cassiopeiae is distant 1,975.76 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.

Distance (parsec) 606.06 pc

Distance (light year) 1,975.76 ly

Heliocentric radial velocity -12 km/s

Proper Motion RA -0.003 arcsec/year

Proper Motion Dec 0.009 arcsec/year

Spectral properties of 2 Cassiopeiae

2 Cassiopeiae belongs to spectral class A5 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -3.21

Spectral Type A5III

Color Index (B-V) 0.33

Temperature of 2 Cassiopeiae 7276K

The red dot in the diagram below shows where 2 Cassiopeiae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 2 Cassiopeiae. Attribution: Richard Powell / CC BY-SA

2 Cassiopeiae star system properties

2 Cassiopeiae 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 2 Cassiopeiae double sysyem:

Main star magnitude 5.7

Secondary star magnitude 10

Magnitude difference 4.3

Separation 167.2 arcsec

Alternative designations of 2 Cassiopeiae

Flamsteed designation 2 Cassiopeiae

Henry Draper Catalogue HD218753

SAO Catalogue SAO35186

Hipparcos Catalogue HIP114365

Durchmusterung Catalogue BD+58 2552

General Catalogue of Variable Stars Var?

Aitken Double Star Catalogue ADS16556

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In Evidence

Other stars in Cassiopeia