Determining the Astronomical Refraction and Building the Radio Wave Refractive Delay Model Measured(Ⅱ)——Using Hipparcos Catalogue as Working Catalogue;
測定天文大氣折射和建立電磁波折射延遲實(shí)測模型(Ⅱ)——采用依巴谷星表作為工作星表
By means of the central overlapping technique and the iterative process, the highly precise positions and proper motions of 54 stars, including 16 Hipparcos stars in the two plate areas are obtained.
利用上海天文臺佘山４０ 厘米折射望遠(yuǎn)鏡拍攝的２ 個(gè)底片天區(qū)１５ 張照相底片上的３１ 次觀測，以ＡＣＴ 星表作為初始參考星表，按中心重疊法進(jìn)行歸算處理，得到了１６ 顆依巴谷星和３８ 顆場星的高精度位置和自行結(jié)果，其中依巴谷星的赤經(jīng)和赤緯標(biāo)準(zhǔn)誤差的平均值分別為１０ 。
By means of the central overlapping technique and the iterative process, high-precision positions and proper motions of 28 PPM stars, including 6 Hipparcos stars in the region of radio source 0316+413 are obtained.
本文用佘山４０厘米折射望遠(yuǎn)鏡拍攝的歷元間隔約為３０年的９張底片上共１７次露光觀測，以ＰＰＭ星表作為初始參考星表，用中心重迭法進(jìn)行疊代歸算，得到了射電源０３１６十４１３附近的２８顆星的高精度位置和自行，其中６顆為依巴谷星，這些依巴谷星的赤經(jīng)自行和赤緯自行內(nèi)部誤差的平均值分別為■年和■年。