1 Hydrae

Altitude: 34.5° Azimuth: 172.4° Direction: South

1 Hydrae is a main-sequence star in the constellation of Hydra.

1 Hydrae visual magnitude is 5.61. Because of its reltive faintness, 1 Hydrae 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 1 Hydrae:

Color of 1 Hydrae ⬤

Magnitude of 1 Hydrae 5.61

Class Main-sequence

VISIBILITY RIGHT NOW

1 Hydrae is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 34.5°
Azimuth: 172.4°
Direction: South

Celestial coordinates and finder chart of 1 Hydrae

1 Hydrae 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 1 Hydrae are provided in the following table:

Right Ascension J2000 08h 24m 34s

Declination J2000 -03° 45’ 03”

Galactic Longitude 227.5°

Galactic Latitude 18.74°

Constellation Hydra

The simplified sky map below shows the position of 1 Hydrae in the sky:

Simplified finder chart for 1 Hydrae.

Visibility of 1 Hydrae 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 1 Hydrae 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: 93.8° RISE 10:54

Max altitude: 34.8° TRANSIT 16:33

Azimuth: 266.2° SET 22:12

RIGHT NOW 1 Hydrae is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 1 Hydrae

The image below is a photograph of 1 Hydrae 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 1 Hydrae is -0.21 arcsec per year in Right Ascension and -0.024 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of 1 Hydrae. The red arrow shows the motion of 1 Hydrae during the next 1000 years (-3.50 arcmin in Right Ascension and -0.40 arcmin in declination);

Distance of 1 Hydrae from the Sun and relative movement

1 Hydrae is distant 88.71 light years from the Sun and it is moving far from the Sun at the speed of 72 kilometers per second.

Distance (parsec) 27.21 pc

Distance (light year) 88.71 ly

Heliocentric radial velocity 72 km/s

Proper Motion RA -0.21 arcsec/year

Proper Motion Dec -0.024 arcsec/year

Spectral properties of 1 Hydrae

1 Hydrae belongs to spectral class F3 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 3.44

Spectral Type F3V

Color Index (B-V) 0.46

Temperature of 1 Hydrae 6576K

The red dot in the diagram below shows where 1 Hydrae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 1 Hydrae. Attribution: Richard Powell / CC BY-SA

Alternative designations of 1 Hydrae

Flamsteed designation 1 Hydrae

Henry Draper Catalogue HD70958

SAO Catalogue SAO135877

Hipparcos Catalogue HIP41211

Durchmusterung Catalogue BD-03 2333

Gliese Catalogue Gl 306

In Evidence

Other stars in Hydra