Comet, Galaxy – Astronomy
Comet
Nucleus, coma, gas tail, head, dust tail
Galaxy
Hubble’s classification, elliptical galaxy, lentiicular galaxy, spiral galaxy, barred spiral galaxy, irregular galaxy, spiral arm, nucleus.
Nucleus, coma, gas tail, head, dust tail
Hubble’s classification, elliptical galaxy, lentiicular galaxy, spiral galaxy, barred spiral galaxy, irregular galaxy, spiral arm, nucleus.