XO Telescope
The XO Telescope is an astronomical telescope located on the 3,054 m summit of Haleakala on Maui, Hawaii. It consists of two 200-millimeter telephoto camera lenses, and resembles binoculars in shape. It is used by the XO Project to detect extrasolar planets using the transit method. It is similar to the TrES survey telescope. The construction of the one-of-a-kind telescope cost $60,000 for the hardware, and much more than that for the associated software.Planets discovered
The XO telescope has discovered six objects so far, five are hot Jupiter planets and one, XO-3b, is probably a brown dwarf. All were discovered using the transit method.
Light green rows indicate that the planet orbits one of the stars in a binary star system.
| Star | Constellation | Right
ascension | Declination | App.
mag. | Distance | Spectral
type | Planet | Mass
| Radius
| Orbital
period
| Semimajor
axis
| Orbital
eccentricity | Inclination
| Discovery
year |
| XO-1 | Corona Borealis | | | 11.319 | 600 | G1V | XO-1b | 0.9 | 1.3 | 3.941534 | 0.0488 | 0 | 87.7 | 2006 |
| XO-2N | Lynx | | | 11.25 | 486 | K0V | XO-2Nb | 0.57 | 0.973 | 2.615838 | 0.0369 | 0 | 88.58 | 2007 |
| XO-3 | Camelopardalis | | | 9.91 | 850 | F5V | XO-3b | 11.79 | 1.217 | 3.1915239 | 0.0454 | 0.26 | 84.2 | 2007 |
| XO-4 | Lynx | | | 10.78 | 956 | F5V | XO-4b | 1.72 | 1.34 | 4.12502 | 0.0555 | 0.0024 | 88.7 | 2008 |
| XO-5 | Lynx | | | 12.1 | 881 | G8V | XO-5b | 1.15 | 1.15 | 4.187732 | 0.0508 | 0.0029 | 86.8 | 2008 |
| XO-6 | | | | | |
F5V | XO-6b | | | | | | | 2016 |
