Gaia Data Release 1
Open Access

Fig. C.6

image

Parallax differences (TGAS minus Hipparcos) for 86 928 sources, plotted against magnitude. The black line is for northern ecliptic latitudes (β> 0), the grey-white line for southern (β< 0). The lines connect median values calculated in 50 bins subdividing the data according to the Hipparcos magnitude Hp. Each bin contains about 900 data points per hemisphere.

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