The Constellation Telescopium
by Dominic Ford
Telescopium is a small and faint southern constellation which appears highest in the evening sky in the months around July.
Its name is Latin for ‘telescope’, and was applied to this area of sky by Nicolas Louis de Lacaille in 1756. Lacaille originally depicted an aerial telescope – a unwieldy design of refractor which comprised of lenses attached to very long poles.
The stars which make up the telescope are of fourth magnitude, and this sky area contains only one bright deep sky object: the globular cluster NGC 6584.
Date First Appeared
1756 (Lacaille)
1756 (Lacaille)
Sky Area
0.6% of the sky
251.5 square degrees
0.6% of the sky
251.5 square degrees
Messier Objects
Telescopium contains no Messier objects
Telescopium contains no Messier objects
Caldwell Objects
Telescopium contains no Caldwell objects
Telescopium contains no Caldwell objects
Neighbors
The following constellations neighbor Telescopium: Ara, Corona Australis, Indus, Microscopium, Pavo, Sagittarius.
The following constellations neighbor Telescopium: Ara, Corona Australis, Indus, Microscopium, Pavo, Sagittarius.
Hover the pointer over the name of an object to highlight its position on the starchart to the right, or click to see more information.
| Stars | Open Clusters | Globular Clusters | Galaxies |
| α-Tel (mag 3.5) | NGC 6584 (mag 7.9) | NGC 6868 (mag 10.6) | |
| ζ-Tel (mag 4.1) | IC 4889 (mag 11.2) | ||
| ε-Tel (mag 4.5) | IC 4797 (mag 11.3) | ||
| λ-Tel (mag 4.8) | NGC 6758 (mag 11.4) | ||
| ι-Tel (mag 4.9) | NGC 6893 (mag 11.7) | ||
| δ¹-Tel (mag 4.9) | NGC 6861 (mag 11.9) | ||
| ξ-Tel (mag 4.9) | NGC 6870 (mag 11.9) | ||
| η-Tel (mag 5.0) | NGC 6909 (mag 12.0) | ||
| δ²-Tel (mag 5.1) | NGC 6875 (mag 12.0) | ||
| κ-Tel (mag 5.2) | NGC 6788 (mag 12.1) | ||
| ρ-Tel (mag 5.2) | NGC 6887 (mag 12.1) | ||
| ν-Tel (mag 5.3) | NGC 6754 (mag 12.2) | ||
| HIP 89605 (mag 5.4) | IC 4796 (mag 12.3) | ||
| HIP 94712 (mag 5.4) | NGC 6854 (mag 12.3) | ||
| HIP 90414 (mag 5.5) | IC 4933 (mag 12.3) | ||
| HIP 92630 (mag 5.5) | NGC 6725 (mag 12.4) | ||
| PW Tel (mag 5.6) | IC 4837 (mag 12.6) | ||
| HIP 99747 (mag 5.6) | NGC 6707 (mag 12.6) | ||
| HIP 90662 (mag 5.7) | IC 4810 (mag 12.7) | ||
| HIP 95690 (mag 5.7) | IC 4943 (mag 12.7) | ||
| HIP 97816 (mag 5.7) | IC 4832 (mag 12.7) | ||
| HIP 96141 (mag 5.8) | NGC 6780 (mag 12.7) | ||
| HIP 92367 (mag 5.8) | NGC 6862 (mag 12.7) | ||
| HIP 91461 (mag 5.8) | IC 4679 (mag 12.8) | ||
| HIP 97598 (mag 5.9) | NGC 6899 (mag 12.8) | ||
| HIP 93624 (mag 5.9) | NGC 6708 (mag 12.9) | ||
| HIP 93862 (mag 5.9) | NGC 6850 (mag 13.1) | ||
| TYC8745-250-1 (mag 6.0) | NGC 6848 (mag 13.3) | ||
| HIP 89597 (mag 6.0) | NGC 6761 (mag 13.4) | ||
| HIP 89096 (mag 6.1) | IC 4956 (mag 13.4) |
