... Cycle 4: Photometric Calibration Monitor: Fields) The WF/PC-2 was used to make photometric calibration images by taking images of the large globular cluster OmegaCentauri (aka, NGC-5139) to help determine astrometric and optical stability of the WF/PC-2 ...
... Cycle 4: Photometric Calibration Monitor: Fields) The WF/PC-2 was used to make photometric calibration images by taking images of the large globular cluster OmegaCentauri (aka, NGC-5139) to help determine astrometric and optical stability of the WF/PC-2 ...
... 1.2 Completed FOC/96/WFC 3325 (Structure of Globular Clusters) The Faint Object Camera and the Wide Field Camera (f/96) were both used in parallel to make images of the giant globular cluster OmegaCentauri (aka, NGC-5139). ...
... 4: Photometric Calibration Monitor: Fields) The WF/PC-2 was used to make photometric calibration observations by taking images of the large globular cluster OmegaCentauri (aka, NGC-5139) to help determine astrometric and optical stability of the WF/PC-2 ...
... WF/PC-2 4749 (WF/PC-2 Relative Photometric Calibration) The WF/PC-2 was used to make photometric calibrations images of standard star A+81D266 which is located in NGC-5136 (aka, OmegaCentauri) to obtain various medium and broad band filter images ...
... 1.4 Completed WF/PC-2 4819 (WF/PC-2 PSF Characterization) The WF/PC-2 was used to make multiple exposures of the globular cluster OmegaCentauri during coarse and fine dwell scans. ...
... 1.3 Completed WF/PC-2 5632 (WF/PC-2 Cycle 4: Preflash Test) The WF/PC-2 Was used to study variations in sensitivity along the columns of each CCD by making images of test globular cluster OmegaCentauri (aka, NGC-5139). ...
... 1.4 Completed WF/PC-2 4763 (WF/PC-2 QE and Throughput Measurement) The WF/PC-2 was used to make ultraviolet exposures of a UV flux-standard star located in Omega-Centauri to be used for alignment studies. ...
... WF/PC-2 4749 (WF/PC-2 Relative Photometric Calibration) The WF/PC-2 was used to make photometric calibration images of standard star A+81D266 which is located in NGC-5136 (aka, OmegaCentauri) to obtain various medium and broad band filter images ...
... Up until about 5 years ago, the only known counter-example to convention was the cluster OmegaCentauri, which is significantly more massive than most clusters and has both a complex main sequence structure and a range of metallicities among the evolved ...