We established a separation scheme to distinguish galaxies from stars with the aid of AKARI/FIS color-color (CC) diagrams. In all the combinations of CC diagrams we can distinguish two separate clouds. It was shown that in all cases one of them contains more than 95% of galaxies and the other one, in most cases, consists in more than 80% of stars (Pollo et al., 2010). Currently we are looking into more detailed classifications. We are especially interested in separating different morphological types of galaxies, mainly within spiral galaxies. Moreover, we study the properties of infrared galaxies.

ABSTRACT
1. OUR SAMPLE
2. HOW FIR COLORS VARY WITH HUBBLE SEQUENCE?
3. CONCLUSIONS
REFERENCES

• P. RYBKA(Department of Particle and Astrophysical Science, Nagoya University)
• A. POLLO(The Astronomical Observatory of the Jagiellonian University, National Centre for Nuclear Research)
• T. T. TAKEUCHI(Department of Particle and Astrophysical Science, Nagoya University)