HR3749

HR3749 is a giant star in the constellation of Hydra.

HR3749 visual magnitude is 4.69. Because of its moderate brightness, HR3749 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about HR3749:

Color of HR3749 ⬤

Magnitude of HR3749 4.69

Class Giant

VISIBILITY RIGHT NOW HR3749 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR3749

HR3749 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3749 are provided in the following table:

Right Ascension J2000 09h 27m 18s

Declination J2000 -22° 20’ 38”

Galactic Longitude 252.94°

Galactic Latitude 20.14°

Constellation Hydra

The simplified sky map below shows the position of HR3749 in the sky:

Simplified finder chart for HR3749.

Visibility of HR3749 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 HR3749 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: 112.3° RISE 14:01

Max altitude: 16.2° TRANSIT 17:55

Azimuth: 247.7° SET 21:49

RIGHT NOW HR3749 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR3749

The image below is a photograph of HR3749 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 HR3749 is 0.18 arcsec per year in Right Ascension and -0.161 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR3749. The red arrow shows the motion of HR3749 during the next 1000 years (3.00 arcmin in Right Ascension and -2.68 arcmin in declination);

Distance of HR3749 from the Sun and relative movement

HR3749 is distant 175.93 light years from the Sun and it is moving far from the Sun at the speed of 29 kilometers per second.

Distance (parsec) 53.97 pc

Distance (light year) 175.93 ly

Heliocentric radial velocity 29 km/s

Proper Motion RA 0.18 arcsec/year

Proper Motion Dec -0.161 arcsec/year

Spectral properties of HR3749

HR3749 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 1.03

Spectral Type K2III

Color Index (B-V) 1.14

Temperature of HR3749 4430K

The red dot in the diagram below shows where HR3749 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3749. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3749

Henry Draper Catalogue HD81799

SAO Catalogue SAO177469

Hipparcos Catalogue HIP46371

Durchmusterung Catalogue BD-21 2802

In Evidence

Other stars in Hydra