American Astronomical Society ( AAS )

Astronomical League (AL)

Astronomical Society of the Pacific ( ASP )

Astronomical Society of Australia ( ASA )

Astronomical Society of India ( ASI )

Chinese Astronomical Society ( CAS )

Euro-Asian Astronomical Society ( EAAS )

European Astronomical Society ( EAS )

Griffith Observatory (GO)

International Meteor Organization ( IMO )

Jordanian Astronomical Society ( JAS )

The Planetary Society  (TPS)

An Astronomical paper by Abdul Ahad