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 AbbÃ© 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. For a list of named stars, that is stars that don't start HD or HIP, please visit Telescopium Star List Page.
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 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.
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.
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.
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.
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
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.
|Is a Zodiac Sign||No|
|Brightest Star||Alpha Telescopii|
|Area||251.512 sq. deg.|
|Percentage of Night Sky||0.61%|
|Site Exoplanet Count||4|
|Meteor Shower Count||0|
|Nearest Star||HIP 99701|
|Nearest Star with Exoplanet(s)||PZ Telescopii|
|Brightest Star||Alpha Telescopii|
|Dimmest Star||HD 177406|
|Furthest Star||HIP 97227|
|Bright Star Count||27|
|Hipparcos Star Count||904|
|Main Star Count||6|
|Messier Deep Space Object Count||0|
|*Non-Messier Deep Space Object Count||0|
|Bordering / Neighbouring / Surrounding Constellations||Sagittarius|
*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.
The map was generated using Night Vision, an awesome free application by Brian Simpson.