Habitable Zones about Main Sequence Stars.
HAC IS ERE (hydrogenated amorphous carbon interstellar extended red emission)
HAC-coated silicate grains and PAHs in diffuse clouds and low-velocity shocks
HAD I, Introduction
HAD III, Introduction
Hadamard transform infrared astronomical imaging device
Hadley Circulation on Jupiter
Hadley Circulation on Mars: Model Experiments
Hadley, John (1682-1744)
Hadron acceleration in Gamma-Ray Bursts and its implications for the burst dynamics
Hadronic Contributions for TeV Gamma-Ray Emission from Young Supernova Remnants
Hadronic gamma-ray production in microquasars with equatorial winds
Hadronic Interpretation of High Energy Radiation from Fermi LAT GRBs
Hadronic Synchrotron Mirror Model for Orphan TeV Flares in Blazars
Hadronization of the Quark Universe
HADS in the Large Magellanic Cloud
HADS, multiple periods, period changes and the PL Relation
Haffner 20 and 21, Two Moderately Old Open Clusters in Puppis
Hafner Lovro. (Slovenian Title: Hafner Lovro)
Hagen's Atlas Stellarum Bariabilium Series V.