HR2770

Altitude: -14.6° Azimuth: 228.5° Direction: South-West

HR2770 is a variable sub-giant star in the constellation of Puppis.

HR2770 visual magnitude is 5.03. Because of its reltive faintness, HR2770 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 HR2770:

Color of HR2770 ⬤

Magnitude of HR2770 5.03

Class Sub-giant

VISIBILITY RIGHT NOW

HR2770 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -14.6°
Azimuth: 228.5°
Direction: South-West

Celestial coordinates and finder chart of HR2770

HR2770 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR2770 are provided in the following table:

Right Ascension J2000 07h 16m 49s

Declination J2000 -36° 35’ 34”

Galactic Longitude 248.52°

Galactic Latitude -11.12°

Constellation Puppis

The simplified sky map below shows the position of HR2770 in the sky:

Simplified finder chart for HR2770.

Visibility of HR2770 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 HR2770 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: 126.6° RISE 1:17

Max altitude: 1.9° TRANSIT 2:41

Azimuth: 233.4° SET 4:06

Digitized Sky Survey image of HR2770

The image below is a photograph of HR2770 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 HR2770 is 0.001 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR2770. The red arrow shows the motion of HR2770 during the next 100000 years (1.67 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of HR2770 from the Sun and relative movement

HR2770 is distant 958.82 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

Distance (parsec) 294.12 pc

Distance (light year) 958.82 ly

Heliocentric radial velocity 9 km/s

Proper Motion RA 0.001 arcsec/year

Proper Motion Dec -0.002 arcsec/year

Spectral properties of HR2770

HR2770 belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude -2.31

Spectral Type B2IV

Color Index (B-V) -0.17

Temperature of HR2770 12902K

The red dot in the diagram below shows where HR2770 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2770. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2770

Henry Draper Catalogue HD56779

SAO Catalogue SAO197790

Hipparcos Catalogue HIP35226

Durchmusterung Catalogue CD-36 3485

General Catalogue of Variable Stars Var?

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In Evidence

Other stars in Puppis