A Bayesian framework for astrometry in a sparse star field and its application to Triton observations

Open Access

Table 1

Specifications of the telescopes and CCD detectors.

Telescope	0.8 m (Yaoan)	1 m (Kunming)
Approximate focal length	800 cm	1330 cm
Diameter of primary mirror	80 cm	100 cm
CCD field of view	$11_{\cdot}^{'} 9 \times 11_{\cdot}^{'} 9$ $Mathematical equation: $\[11^{\prime}_\cdot9 \times 11^{\prime}_\cdot9\]$$	$7_{\cdot}^{'} 1 \times 7_{\cdot}^{'} 1$ $Mathematical equation: $\[7^{\prime}_\cdot1 \times 7^{\prime}_\cdot1\]$$
Size of pixel	13.5 μm × 13.5 μm	13.5 μm × 13.5 μm
Size of CCD array (pixels)	2048 × 2048	2048 × 2048
Approximate scale factor	$0_{\cdot}^{''} 348$ $Mathematical equation: $\[0^{\prime\prime}_\cdot348\]$$ pixel⁻¹	$0_{\cdot}^{''} 209$ $Mathematical equation: $\[0^{\prime\prime}_\cdot209\]$$ pixel⁻¹

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