EDP Sciences
Gaia Data Release 2
Free Access

Fig. B.1

image

Magnitude distribution of sources in Gaia DR2. Grey: All sources. Blue: Sources with a full astrometric solution (five parameters). Red: Sources with a fall-back solution (position only). Green: Quasar candidates from the AllWISE AGN catalogue. Magenta: VLBI sources from the ICRF3 prototype.

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