We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support keeps us free & ad-free » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 7:01  
clear_day Transit: 12:12  
SunsetSet: 17:24
sleep NighttimeWhat's Visible Now?
All Constellations » Lepus » 

HR1645

Altitude: -3.6°   Azimuth: 234.2°   Direction: South-West

HR1645 is a star in the constellation of Lepus.

HR1645 visual magnitude is 5.61. Because of its reltive faintness, HR1645 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of HR1645 is 0.024 arcsec per year in Right Ascension and -0.028 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1645 star
DSS2 image of HR1645. The red arrow shows the motion of HR1645 during the next 10000 years (4.00 arcmin in Right Ascension and -4.67 arcmin in declination);

Key facts about HR1645

5.61

HR1645 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -3.6°
Azimuth: 234.2°
Direction: South-West

Celestial coordinates and finder chart of HR1645

HR1645 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 HR1645 are provided in the following table:

05h 03m 53s
-24° 23’ 16”
225.4°
-33.7°
Lepus

The simplified sky map below shows the position of HR1645 in the sky:

Finder chart HR1645 star
Simplified finder chart for HR1645.

Visibility of HR1645 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 HR1645 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: 114.4°
Max altitude: 14.1°
Azimuth: 245.6°

Distance of HR1645 from the Sun and relative movement

HR1645 is distant 195.80 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

60.06 pc
195.80 ly
7 km/s
0.024 arcsec/year
-0.028 arcsec/year

Spectral properties of HR1645

HR1645 belongs to spectral class A3

1.72
A3
9028K

The red dot in the diagram below shows where HR1645 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR1645. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1645

SAO170029
SAO170029