• Deepakshi Thakur
• Inamul Haq Wani

A Galaxy is a system of a number of stars that are gravitationally held together and contain gas, dust, dark matter, planets, etc. Galaxy is very vast which is sometimes difficult or impossible to study. So to easily study them it is important to classify them. Classification means arranging things in a special order which makes them easy to study or understand them. Edwin Hubble classified galaxies into Four main classes: Elliptical, Spiral, Lenticular, and Irregular galaxies which makes the galaxies easily study them based on their shapes. It is possible to define the Hubble scheme or Hubble sequence in terms of specific galaxy parameters. It shows the correlation between Galaxy morphology and measurable galaxy features.

Galaxies, Classification, Hubble classification, Galaxy parameters.

" A Review of Galaxy classification by Hubble scheme", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 7, page no.d94-d104, July-2023, Available :http://www.jetir.org/papers/JETIR2307312.pdf

" A Review of Galaxy classification by Hubble scheme", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 7, page no. ppd94-d104, July-2023, Available at : http://www.jetir.org/papers/JETIR2307312.pdf