NGC 5907 – Splinter Galaxy

NGC 5907 is a spiral galaxy in the constellation Draco located 40 million light-years away. Of apparent magnitude 10.38, its surface brightness is 13.4 mag/arcsec. It was discovered by William Herschel in 1788.

NGC 5907 appears edge-on from our perspective, oriented approximately north-south. The nucleus is not clearly defined (and in fact is hidden by interstellar dust, which given the high inclination of the galaxy makes it very difficult to study at least in visible light; studies at other wavelengths show a small central bar -so it is actually a barred spiral galaxy-, as well as two rings or spiral arms of molecular hydrogen at radii of 3.5 and 7 kiloparsecs, and a rather modest star formation rate.

Image obtained from the Anunaki Observatory

Acquisition details:

Baader Blue (CMOS-Optimized) 36 mm: 42×300,″(3h 30′)
Baader Green (CMOS-Optimized) 36 mm: 42×300,″(3h 30′)
Baader H-alpha 6.5nm (CMOS-Optimized) 36 mm: 38×900,″(9h 30′)
Baader Red (CMOS-Optimized) 36 mm: 42×300,″(3h 30′)
Baader UV/IR CUT Luminance (CMOS Optimized) 36 mm: 189×300,″(15h 45′)
Time de integration:
35h 45′

It has an extremely thin disk, which shows, as happens in other spiral galaxies, some deformation attributed to interactions with neighboring galaxies, which is why it has occasionally been called a Splinter Galaxy.

Although not visible in this image, large streams of stars extend into space outside the galaxy itself, circling around it. They are thought to be remnants of a small dwarf galaxy, torn apart by the galaxy NGC 5907 and merging with it more than 4 billion years ago.