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🌎  Greenwich, United Kingdom [change]

HR3638

HR3638 is a main-sequence star in the constellation of Hydra.

HR3638 visual magnitude is 5.73. Because of its reltive faintness, HR3638 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 HR3638:

5.73
Main-sequence
HR3638 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR3638

HR3638 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 HR3638 are provided in the following table:

09h 09m 04s
-18° 19’ 42”
246.74°
19.51°
Hydra

The simplified sky map below shows the position of HR3638 in the sky:

Finder chart HR3638 star
Simplified finder chart for HR3638.

Visibility of HR3638 from your location

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

Today's HR3638 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 108.3°
Max altitude: 20.2°
Azimuth: 251.7°
HR3638 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR3638

The image below is a photograph of HR3638 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 HR3638 is -0.052 arcsec per year in Right Ascension and 0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3638 star
DSS2 image of HR3638. The red arrow shows the motion of HR3638 during the next 10000 years (-8.67 arcmin in Right Ascension and 1.50 arcmin in declination);

Distance of HR3638 from the Sun and relative movement

HR3638 is distant 260.38 light years from the Sun and it is moving far from the Sun at the speed of 17 kilometers per second.

79.87 pc
260.38 ly
17 km/s
-0.052 arcsec/year
0.009 arcsec/year

Spectral properties of HR3638

HR3638 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.

1.22
A2V
10125K

The red dot in the diagram below shows where HR3638 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3638. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3638

SAO154950
SAO154950