Universe Guide

Telescopium, The Telescope Constellation

Telescopium Constellation Star Map

Telescopium (Pronounciation:Tele-scope-e-um, Abbrev:Tel, Latin:Telescopii) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Telescopium takes up 251.512 sq. degrees of the night sky which equates to 0.61% of the night sky. Telescopium is the 57th largest in terms of size in the night sky.

The constellation name means The Telescope . It was not one of the original constellations that had been devised by Ptolemy, instead it was created by Abbé Nicolas Louis de Lacaille years later.

There are 6 stars that make up the main constellation. The hipparcos satellite scanned and detailed 904 stars. There are 27 stars that can be seen with the naked eye in the constellation on a very clear night sky.

Telescopium is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Telescopium is a southern hemispheric constellation which means it can't be seen easily or at all from the northern hemisphere.

There are 4 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site. There is a dedicated page for exoplanets in Telescopium.

There are no deep space objects that were identified by Charles Messier in this constellation. There are no non-Messier deep space objects in this constellation that are covered at present on this site.

The image at the top right of this page was generated using Night Vision, a free to use and download application by Brian Simspon.

Distance to Telescopium

You can't just go to one location and arrive at the constellation because the constellation is made up of stars at different locations and different distances. The nearest main star in the constellation is at a distance of 126.22 light years and the furthest main star is a distance of 1,080.01 light years. The average distance to the main stars is 480.80 light years.

Telescopium Star Facts

The caveat of these stars are that they are catalogued on this site. If you know of a star that is nearer or further then do let me know in the comments and I'll add it to the site. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status.

HIP 99701, Telescopium's Nearest Star

The nearest star to Earth is HIP 99701 which is roughly about 20.22 Light Years from the Earth. The nearest star to the Earth with an exoplanet is PZ Telescopii which is about 167.95 Light Years.

HIP 97227, Telescopium's Furthest Star

The furthest star that is located in the constellation is HIP 97227 and it is 163081.7 light years away from the Sun. The furthest figure is derived from either the 1997 or 2007 Hipparcos star catalogue parallax figure and it has been known to produce distances that are wrong.

Alpha Telescopii, Brightest Star in Telescopium

The brightest star in Telescopium is Alpha Telescopii and is located about 38.29 light years from the Sun. The star has a apparent magnitude of 3.49 but an absolute magnitude of -1.16 when the star is viewed from a distance of 10 Parsecs or 32.6 Light Years. The star is recognised as being the brightest in the constellation as it has the Bayer status of Alpha.

HD 177406, Telescopium's Dimmest Visible Star

The dimmest star that can be seen in Telescopium with the naked eye is HD 177406. The dim star has an apparent magnitude of 5.95. The dimmest star that a person is able to see with their naked eye is 6.0 magnitude based on the table in the reference. Ref: University of Michigan.

Telescopium Mythology

There is no Greek Legend behind this constellation. It was created by Abbé Nicolas Louis de Lacaille to fill in the voids in the astronomical charts. Telescopes were a new invention and it was deemed appropriate to honour the invention at the time.

Telescopium Facts

Is a Zodiac Sign No
Brightest StarAlpha Telescopii
Area251.512 sq. deg.
Percentage of Night Sky0.61%
Size Position57th
Hemisphere Southern
Site Exoplanet Count4
Meteor Shower Count1
Nearest StarHIP 99701
Nearest Star with Exoplanet(s)PZ Telescopii
Brightest StarAlpha Telescopii
Dimmest StarHD 177406
Furthest StarHIP 97227
Bright Star Count27
Hipparcos Star Count904
Main Star Count6
Messier Deep Space Object Count0
Bordering / Neighbouring / Surrounding ConstellationsSagittarius
Corona Australis

*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.

List of Deep Space Objects (Galaxies, Nebulas, Supernovas, etc) in Telescopium

NameTypeDistanceDeclinationRight Ascension
NGC 6861Lenticular Galaxy-48:22:11.7220h 7h 19m 28
NGC 6870Galaxy in a Pair of Galaxies-48 17 13.22974451920 10 10m 8660947762

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