GALACTICNUCLEUS DR1 H HiPS

The GALACTICNUCLEUS (GNS) survey is a single-epoch catalog of the Galactic Centre in the near-infrared bands JHKs. The observations were optimised for the Galactic Center: high angular resolution (0.2") to overcome extreme crowding and high dynamic range to minimise saturation issues. The data were acquired with the HAWK-I intrument at the ESO VLT unit telescope 4. The catalogue covers an area of ~0.3 square degrees (~6000 square pc) distributed across seven regions that correspond to the nuclear stellar disc (NSD), the inner Galactic Bulge and the transition region between them.

GALACTICNUCLEUS（GNS）巡天是一套针对银心的近红外JHKs波段单历元星表。本观测针对银心进行了优化：采用0.2角秒的高角分辨率以克服极端源拥挤效应，并通过高动态范围设计最大限度降低探测器饱和问题。观测数据由欧洲南方天文台（ESO）甚大望远镜（VLT）4号单元望远镜搭载的HAWK-I仪器获取。该星表覆盖约0.3平方度的天区（对应约6000平方秒差距），分布于七个区域，分别对应核恒星盘（NSD）、银河核球内区以及二者之间的过渡区域。