More music with astronomical associations (some perhaps tenuous):

   Gian-Francesco Malipiero: Sinfonia dello Zodiaco;
   Ernest Pingoud:     Le Chant de l'Espace;
   Poul Ruders:        The Solar Trilogy: Gong, Zenith, and Corona
(Exciting works, available in more than one recording;)
   William Mathias:    Helios, op. 76;
   Alun Hoddinott:     The Heaventree of Stars, op. 102,
            Star Children, op. 135;
   Toru Takemitsu:     Orion and Pleiades;
   Nancy Van de Vate:  Distant Worlds,
            Dark Nebulae
   Katherine Hoover:   Night Skies (a gorgeous piece of modernistic
impressionism, and I think the most evocative item on this list.
Available with other works by Hoover on Parnassus PACD 96019).

Cheers///Jon Gallant ([log in to unmask])