Q11537

Picture of the Day · NASA

NGC 3660 and Burçin's Galaxy

2026-05-26

The upper galaxy might be more photogenic, but the lower galaxy is more unusual. The galaxy up top is NGC 3660, a spiral galaxy similar to our own Milky Way galaxy in that it has several bright blue spiral arms and a central bar of stars, dust, and gas. Captured by chance in the featured deep and colorful image, surprisingly, is SN 2026cff, a supernova found just to the right of the central bar. Farther in the distance is the bottom galaxy, known informally as Burçin’s galaxy, but formally cataloged as LEDA 1000714. The center of this galaxy appears to be an old elliptical galaxy, but it is strangely surrounded by not one but two rings of stars. What created Burçin's galaxy is a mystery and remains a continuing topic of research, but it likely involves the accretion of one or more smaller galaxies.

via NASA APOD

Key facts

Discovered by

V. Albitzkij

Discovery site

Simeiz Obs.

Discovery date

5 October 1923

Named after

Ivan Pavlov , (Russian physiologist)

Alternative designations

1923 OX · 1934 FE, 1954 UG 1 · 1956 AK

Minor planet category

main-belt · ( middle ) , background

Observation arc

110.93 yr (40,516 days)

Aphelion

3.0098 AU

Perihelion

2.4048 AU

Semi major axis

2.7073 AU

Orbital period sidereal

4.45 yr (1,627 days)

Mean anomaly

25.348 °

Mean motion

Wikidata facts

Instance of

asteroid

Named after

Ivan Pavlov

Followed by

Q11540

Follows

Q11534

Parent body

Sun

Minor-planet group

asteroid belt

Diameter

+18.264

Orbital period

+1627.653255116899