- Bibcode
- Daftar objek NGC 7001 - 7840
- Daftar objek NGC 1 - 1000
- Daftar objek NGC 5001 - 6000
- Daftar objek NGC 2001 - 3000
- Daftar objek NGC 4001 - 5000
- Daftar objek NGC 3001 - 4000
- Daftar objek NGC 6001 - 7000
- Daftar objek NGC 1001 - 2000
- Kosmologi
- Extragalactic planet
- Extragalactic astronomy
- Nebula
- Cosmic distance ladder
- James Webb Space Telescope
- BOOMERanG experiment
- BICEP and Keck Array
- Extragalactic cosmic ray
- Bibcode
- Megamaser
