[1] HAT-1 was transported from Budapest to the Steward Observatory, Kitt Peak, Arizona, USA, in January 2001.
Each system has eight (2*4) joint-mounted, quasi-parallel Takahashi Epsilon (180 mm diameter, f/2.8) astrographs with Apogee 4k*4k CCDs with overlapping fields of view.
In the development József Lázár, István Papp and Pál Sári also played an important role.
More than 100 people have contributed altogether to the seventy planet discovery papers published or submitted by the project as of Feb 2020.
Gáspár Bakos, István Papp, József Lázár, Pál Sári, have contributed to all of the planet discoveries by HAT.
Fulton (12, Caltech), Howard Isaacson (12, UC Berkeley), András Pál (12, CfA), Brigitta Sipőcz (12, University of Hertfordshire), Támás Szkelenár (12), Chris Tinney (12, University of New South Wales), Duncan Wright (11, Australian Astronomical Observatory), Jeffrey Crane (10, Carnegie Institution for Science), Emilio Falco (10, CfA), Paula Sarkis (10, MPIA), and Stephen Shectman (10, Carnegie Institution for Science).