  During the visual observations of optical imaging data obtained from the
DECaLS, a serendipitous discovery emerged, revealing the presence of a ringed
galaxy, DES J024008.08-551047.5 (DJ0240). We performed one dimensional
isophotal and two-dimensional GALFIT analysis to confirm the orthogonal nature
of the ring galaxy and identify distinct components within the host galaxy. We
discovered the galaxy DJ0240 as a potential PRG candidate with a ring component
positioned almost perpendicular to the host galaxy. The position angles of the
ring and host components have been determined to be 80 and 10 degrees,
respectively, indicating that they are nearly orthogonal to each other. We
observed that the ring component extends three times more than the host galaxy
and shows a distinct colour separation, being bluer than the host. The
estimated g - r colour values of host and ring components are 0.86+/-0.02 and
0.59+/-0.10 mag, respectively. The colour value of the ring component is
similar to typical spiral galaxies. The host galaxy`s colour and the presence
of a bulge and disk components indicate the possibility of the host galaxy
being a lenticular type. Based on the comparison of photometric properties
between the PRGs and other ring-type galaxies (RTGs), our findings reveal a
subtle, yet noticeable, colour difference between the host and ring components.
We observed that both host and ring components of DJ0240 align more closely
with PRGs than with RTGs. Furthermore, we compared the sersic index values of
the ring component (nring) of galaxy DJ0240 with a selected sample of PRGs and
Hoag-type galaxies. The results showed DJ0240 had a remarkably low nring value
of 0.13, supporting the galaxy`s classification as a PRG. Hence, we suggest
that the ring galaxy DJ0240 is a highly promising candidate for inclusion in
the family of PRGs.
