NGC 5905 and NGC 5908 - 2019 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: NGC 5905 · NGC 5908

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NGC 5905 and NGC 5908 - 2019

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NGC 5905 and NGC 5908 - 2019

These two beautiful spiral galaxies are located 150 million light years away in the constellation of Draco. NGC 5905 is face-on and NGC 5908 is edge-on.

NGC 5905 (lower right) has a huge diameter of almost 200,000 light years, resulting in an apparent diameter of 4 arc-minutes. The galaxy is strongly barred, each end of the bar connecting to a spiral arm which reaches the outer disk after 270 degrees of wrap. Bright blue star clusters are visible in each arm.

NGC 5908 reminds me of a smaller version of the Sombrero Galaxy. It is about 120,000 light years in diameter and has a bright stellar bulge.

Even though the recessional velocities of these two galaxies are similar and they are believed to be gravitationally bound, numerous sources say that there are "no visible signs" of interaction. However, I find the following visible signs to be interesting:

1. NGC 5905 has a denser outer disk region on the side towards NGC 5908

2. The star clusters in NGC 5905 are all concentrated on the bottom right side, away from NGC 5908

3. The outer edge of the NGC 5908 galaxy disk is further away from to the core on the side away from NGC 5905

4. The dark dust band is more prominent on the side of NGC 5908 which is towards NGC 5905.

It seems to me that these signs, although subtle, clearly indicate that some interaction is occurring.

The refractors!
Cloudy Nights
ZWO ASI1600MM/QHY163M

Barred Galaxies
Edge-on Galaxies
Sombrero Galaxy Shape

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Status	Advanced success
Started	...
Astrometry.net job	2803236
PixInsight job	TD9DO0GB0H80JPHCKLGQCDDYMY79A75W
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	15h16m04s.301
RA (top/left)	15h17m47s.208
RA (top/right)	15h16m27s.334
RA (bottom/right)	15h14m20s.738
RA (bottom/left)	15h15m41s.573

Dec (center)	+55°27′39″.83
Dec (top/left)	+55°20′31″.44
Dec (top/right)	+55°43′35″.81
Dec (bottom/right)	+55°34′43″.20
Dec (bottom/left)	+55°11′43″.54

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NGC 5905 and NGC 5908 - 2019

NGC 5905 and NGC 5908 - 2019

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NGC 5905 and NGC 5908 - 2019

NGC 5905 and NGC 5908 - 2019

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