Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:01  ☀️ Transit: 12:06  🌅 Sunset: 18:11

δ1 Telescopii (delta1 Telescopii)

δ1 Telescopii is a sub-giant star in the constellation of Telescopium.

δ1 Telescopii visual magnitude is 4.96. Because of its moderate brightness, δ1 Telescopii 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 δ1 Telescopii:

δ1 Telescopii (delta1 Telescopii) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of δ1 Telescopii

δ1 Telescopii is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of δ1 Telescopii are provided in the following table:

18h 31m 45s
-45° 54’ 53”

The simplified sky map below shows the position of δ1 Telescopii in the sky:

Finder chart δ1 Telescopii (delta1 Telescopii) star
Simplified finder chart for δ1 Telescopii (delta1 Telescopii).

Visibility of δ1 Telescopii from your location

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

δ1 Telescopii (delta1 Telescopii) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of δ1 Telescopii

The image below is a photograph of δ1 Telescopii 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 δ1 Telescopii is -0.008 arcsec per year in Right Ascension and -0.032 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of δ1 Telescopii (delta1 Telescopii) star
DSS2 image of δ1 Telescopii. The red arrow shows the motion of δ1 Telescopii during the next 10000 years (-1.33 arcmin in Right Ascension and -5.33 arcmin in declination);

Distance of δ1 Telescopii from the Sun and relative movement

δ1 Telescopii is distant 795.12 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

243.90 pc
795.12 ly
7 km/s
-0.008 arcsec/year
-0.032 arcsec/year

Spectral properties of δ1 Telescopii

δ1 Telescopii belongs to spectral class B6 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where δ1 Telescopii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of δ1 Telescopii. Attribution: Richard Powell / CC BY-SA

Alternative designations of δ1 Telescopii

δ1 Telescopii
(delta1 Telescopii)