NNGC 4725, NGC 4747, and NGC 4712 in Coma Berenices
NNGC 4725, NGC 4747, NGC 4712
NNGC 4725 is a so-called “peculiar” galaxy because, despite having a spiral structure, it has only one prominent spiral arm – a rare feature. It lies about 41 million light-years from Earth and belongs to the Coma I Galaxy Group. At its core, it hosts an active galactic nucleus, indicating the presence of a supermassive black hole. Its asymmetrical structure may be the result of past gravitational interactions with neighboring galaxies.
NGC 4747 is a smaller barred spiral galaxy in the same region. It lies close to NNGC 4725 and shows signs of strong gravitational interaction – likely with that very neighbor. These interactions have led to prominent tidal structures and regions of active star formation.
NGC 4712 is the least well-known of the three galaxies. It is a spiral galaxy located farther away than the other two, at an estimated distance of around 200 million light-years. In comparison, it appears smaller and dimmer but shows a classic spiral structure. It has not yet been studied in as much detail.
NGC 4747 is a smaller barred spiral galaxy in the same region. It lies close to NNGC 4725 and shows signs of strong gravitational interaction – likely with that very neighbor. These interactions have led to prominent tidal structures and regions of active star formation.
NGC 4712 is the least well-known of the three galaxies. It is a spiral galaxy located farther away than the other two, at an estimated distance of around 200 million light-years. In comparison, it appears smaller and dimmer but shows a classic spiral structure. It has not yet been studied in as much detail.
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Top Pick on AstrobinImage Details
| Date |
April 26 - 30, 2025 |
| LOCATion |
Hannover (Germany) |
| Sky Quality |
Bortle 5 |
| Telescope |
Skywatcher 200/1000 @750mm f/3.75 |
| Mount |
Skywatcher EQ6-R Pro |
| Main Camera |
ZWO ASI 2600 MC Pro Gain 100, Offset 18, -10° |
| Focuser |
ZWO EAF |
| Filter |
Baader UV/IR-Cut Filter
|
| Exposure |
RGB: 813 × 60″ (13h 33′) Total: 13h 33‘ |
| Guiding |
ZWO ASI 120MM, PHD2 |
| Calibration |
Flats, Darks, Darkflats |
| Software |
N.I.N.A., EQMod |
| Processing | Astropixelprocessor, Photoshop, Pixinsight |
| Corrector | Starizona nexus 0.75 |
Gallery
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NGC 6914
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IC 447
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Interstellar Shells
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Orion Nebula
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Regulus & Dwarf Galaxy
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Sh2-140
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Sh2-187
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NGC 2403
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NGC 654
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Coathanger, Loch Ness a.o.
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Ghost of Cassiopeia
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Bode's Galaxy
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Butterfly Nebula (IC 1318)
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NGC 3184
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M 38 in HaRGB
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Comet C/2022 E3 (ZTF)
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NGC 7822
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Pinwheel Galaxy
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Cone Nebula
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Aurora
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NGC 4151 & 4145
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Cave Nebula
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NGC 4725, 4747 & 4712
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The Crescent Nebula
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Lion Nebula
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M 13
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Horsehead Nebula (SHO)
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M 35 & NGC 2158
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Sh2-134 Widefield
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NGC 5033 & Friends
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Clamshell Nebula
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The Dark Mermaid
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Loch Ness Nebula
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Heart & Soul Nebula
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Iris Nebula
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Elephant's Trunk Nebula
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NGC 3718
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Flaming Star Nebula
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IC 410
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Andromeda Galaxy
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Leo Triplet
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Jellyfish Nebula
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M 3
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h and χ Persei (HaRGB)
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VDB 14 & 15
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Northamerica Nebula
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M 106
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Sh2-120 & NGC 7031
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NGC 188
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Tulip Nebula
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Markarian's Chain
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Wizard Nebula
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Bubble & Lobster Claw Nebula
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Copernicus
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Mare Imbrium
