Hα Observations of FK Comae

Hα Observations of Novae in M31

Hα Observations of RS CVn Stars: 1981 Spectra of UX Ari, HR 1099, BD +61 1211 and HD 155638

Hα Observations of the Algol-Type Binary RZ Cassiopeiae

Hα Observations of the Contact Binary EE Cet

Hα Observations of the Near-Limb Flare of 29 June 1973

Hα Observations of the Star HX UMa

Hα Photoelectric Photometry of Eclipsing Binary RZ Cas.

Hα Photography of Sa Galaxies.

Hα Photometry and Fabry-Perot Interferometry of Late-Type Galaxies.

Hα Photometry of Dm-Stars and Dk-Stars

Hα Photometry of SS433

Hα Photometry of X Persei

Hα Plumes in Spiral Galaxies

Hα Polarimetry as a Probe of Chromospheric Magnetic Fields

Hα Polarization during a Well-observed Solar Flare: Proton Energetics and Implications for Particle Acceleration Processes

Hα Polarization Observations and Flare Energetics

Hα Position Determination of the Binary CIRCINUS-X-1

Hα profile variations in Epsilon Aurigae.

Hα Profile Variations in Variable Luminous Yellow Supergiants