The telescope
Latitude: 28º 17' 58.8" N Longitude: 16º 30' 39.7" W Altitude: 2381.25m
The IAC80 telescope, setted for observations in the optical, was fully designed and built by the Instituto de Astrofísica de Canarias (IAC) and it was the first of its class developed in Spain. In 1980 the IAC started its development and was finally installed at the OT in 1991. This telescope has an equatorial german mount, with an effective focal ratio of f/11.3, effective focal length of 9.02 m and a primary mirror of diameter 82 cm. The instrumentation is installed at its Cassegrain primary focus.
The IAC80 telescope is an ideal telescope for long-term programmes, collaborations with other telescopes, urgent observations in service or ToO observation modes, student practices and observational or instrumental test-bed. IAC80 is a key part of the Teide Observatory because of its versatility and availibity.
Technical Data
The current common instrument at the IAC80 telescope is CAMELOT2 (‘CAmara MEjorada LIgera del Observatorio del Teide’). CAMELOT2 is a wide field camera, with 4096×4096 pixels of 15×15 microns/pixel and 0.336 arcsec/pixel, with a 12.3 arcmin FOV due to the filter wheel vignneting (see CAMELOT2 page for more information). This detector has four readout channels and is sensitive in all the optical range. CAMELOT2 uses a close-cycle cooling system to reach -105ºC.
Four parking positions limits
| North | +84º 00′ Dec | Z = 56 |
|---|---|---|
| South | -40º 00′ Dec | Z = 68.5 |
| East | -5h 11m HA | Z = 68 |
| West | +5h 13m HA | Z = 68 |
| Primary mirror | Secondary mirror | ||
|---|---|---|---|
| Dimensions | Dxh = 819.88 x 139.29 mm | Dimensions | Dxh = 222.64 x 38.98 mm |
| Weight | P = 162.38 kg | Weight | P = 4.05 kg |
| Curvature Radius | R = 4 782.28 mm | Optical radius | R = 1 705.71 mm |
| Outer diameter | De = 819.88 mm | Outer diameter | De = 222.73 mm |
| Effective diameter | Dp = 800 mm | Effective diameter | Ds = 220.50 mm |
| Geometric focal (R/2) | fp = 2 391.14 mm | Central thickness | Ec = 38.989 mm |
| Relative aperture (fp/Dp) | f/D = 2.988 | Outer thickness | Ee = 35 mm |
| Conic constante | Cp = -1.00 (parábola) | Focal length | L = 856.854 mm |
| Material | CER-VIT glass ceramic | Geometric focal | fs = 852.85 mm |
| Expansion coefficient | Co < 1.5 x 10-7/ºC | Aperture | A = 209.8 mm |
| Birefringence due to stress | Less than 10 mm/cm | Conic constant | Cs = -2.963 mm |
| Inlays and bubbles | Less than 0.05% of the mirror surface | Material | CER-VIT glass ceramic |
| Expansion coefficient | Co < 1.5 x 10-7/ºC | ||
| Birrefringence due to stress | Less than 10mm/cm | ||
| Inlays and bubles | Less than 0.05% of the mirror surface | ||
| Surface | Convex hyperboloid | ||
Instrumentation
- CAMELOT2. Wide field camera (21.98 arcmin x 22.06 arcmin) for direct image. Filter wheel with 12 positions. Possibility of advanced macros for quasi-robotic observations. Contact Olga Zamora (ozamora at iac.es) for further information.
- CAMELOT [Spare Instrument].