Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

HR757

HR757 is a hypergiant star in the constellation of Triangulum.

HR757 visual magnitude is 6.1. Because of its reltive faintness, HR757 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 HR757:

6.1
Hypergiant
HR757 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 9°.

Celestial coordinates and finder chart of HR757

HR757 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR757 are provided in the following table:

02h 36m 42s
+31° 36’ 27”
147.8°
-26.13°
Triangulum

The simplified sky map below shows the position of HR757 in the sky:

Finder chart HR757 star
Simplified finder chart for HR757.

Visibility of HR757 from your location

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

Today's HR757 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 58.4°
Max altitude: 70.1°
Azimuth: 301.6°
HR757 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR757

The image below is a photograph of HR757 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 HR757 is -0.042 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR757 star
DSS2 image of HR757. The red arrow shows the motion of HR757 during the next 10000 years (-7.00 arcmin in Right Ascension and -0.67 arcmin in declination);

Distance of HR757 from the Sun and relative movement

HR757 is distant 452.15 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

138.70 pc
452.15 ly
3 km/s
-0.042 arcsec/year
-0.004 arcsec/year

Spectral properties of HR757

HR757 belongs to spectral class K0

0.39
K0
4626K

The red dot in the diagram below shows where HR757 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR757. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR757

SAO55703
SAO55703