195 results on '"A. Hiltner"'
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2. Further photometric observations of 2A 0311-227
3. Optical observations of WRA 977
4. Radial-velocity variations of Scorpius X-1 emission lines
5. Optical observations of HD 77581 and a model for the system HD 77581-2U 0900-40.
6. Physical parameters of the Centaurus X-3 system
7. Optical studies of the X-ray globular cluster NGC 6624
8. Observations of Structure in the Interstellar Polarization Curve: Preliminary Results
9. The amazing X-ray light curve of 2A 0311-227
10. Optical identification of A0620-00
11. CPD -48 deg 1577 - The brightest known cataclysmic variable
12. Results of X-ray and optical monitoring of Scorpius X-1 in 1970
13. Optical Spectra and the Mass of SMC X-1
14. The X-ray, optical, and radio behavior of Scorpius X-1 - The 1971 coordinated observations
15. The X-ray, optical, and radio behavior of Scorpius X-1 - The 1972 coordinated observations
16. Hydrogen Emission in 25 Cygni.
17. Photoelectric Photometry of the Association III Cephei.
18. A Note on the Shell Spectrum of 48 Librae (hd 142983).
19. Spectrum of Nova Ophiuchus 1952.
20. Letters to the Editor Photoelectric Polarization Observations of the Jet in M87.
21. Studies in Spectral Classification. I. The HR Diagram of the Hyades.
22. The Soft X-Ray Spectra of Three Cosmic Sources and Simultaneous Optical Observations of SCO XR-1
23. The Galactic Cluster, NGC 6633.
24. Spectral Classification of Wolf-Rayet Stars
25. Some Uses of the Direct-Intensity Microphotometer.
26. On the Accuracy of Johnson's Colors and Magnitudes of the Pleiades.
27. Variability of the Optical Intensity and Plane Polarization of OJ 287
28. Binary Nature of the B Supergiant in the Error Box of the VELA X-Ray Source
29. Spectrophotometry of the F Stars Alpha Canis Minoris and Alpha Persei. III.
30. The Hydrogen Lines in the Spectrum of Scorpius X-1
31. Polarization of the Cassiopela Radio Source.
32. Variable Polarization in V444 Cygni
33. Color Excesses for Supergiants and Classical Cepheids.VI. on the Intrinsic Colors and the Hess Diagram of Late-Type Supergiants.
34. Spectroscopic and Photometric Observations of a Faint Wolf-Rayet Spectroscopic Binary.
35. Studies in Spectral Classification. II. The HR Diagram of NGC 6530.
36. The Main Sequence of the Globular Cluster M13.
37. Spectra of Six Faint Wolf-Rayet Stars.
38. Photometric Investigations of the Wolf-Rayet Binary CQ Cephei.
39. Photometric Monitoring of SCO XR-1
40. Polarization of Stellar Radiation. III. The Polarization of 841 Stars.
41. The Light-Curve of UX Monocerotis.
42. Spectroscopic Observations of Scorpius X-1
43. Colors and Magnitudes of Clusters in M31 and M33.
44. The Spectrum of β Coronae Borealis.
45. Infrared Spectra of Early-Type Stars.
46. Cepheids in Galactic Clusters. VIII. a Reinvestigation of U SGR in M25 (= IC 4725).
47. Note on the Spectrum of α^{2} Canum Venaticorum.
48. The Eclipsing Variable TX Ursae Majoris.
49. Photoelectric Measurements of Extragalactic Nebulae.
50. Polarization of the Crab Nebula.
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