The Lion Nebula
Sh2-132
Sh2-132 is a large emission nebula visible in the constellation Cepheus.
It is located on the southern edge of the constellation, a short distance from the boundary with the Lizard, along the plane of the Milky Way.
Sh2-132 is located at a distance of almost 10400 light-years. The stars responsible for the ionization of its gas are very hot and massive; in particular, two Wolf-Rayet stars have been identified, known as HD 211564 and HD 211853 (the latter also having the abbreviation WR 153), as well as a spectral class O8.5V star and about ten B-class stars. Chain star formation processes are believed to have taken place in the nebula in the past; currently these processes appear to be suspended, since there is no evidence of recent activity. Nine sources of infrared radiation and a maser with H2O emissions have been detected in the direction of the nebula.
Sh2-132 is located at a distance of almost 10400 light-years. The stars responsible for the ionization of its gas are very hot and massive; in particular, two Wolf-Rayet stars have been identified, known as HD 211564 and HD 211853 (the latter also having the abbreviation WR 153), as well as a spectral class O8.5V star and about ten B-class stars. Chain star formation processes are believed to have taken place in the nebula in the past; currently these processes appear to be suspended, since there is no evidence of recent activity. Nine sources of infrared radiation and a maser with H2O emissions have been detected in the direction of the nebula.
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| Date |
September 26 & October 22, 2023 |
| LOCATion |
Hannover (Germany) |
| Sky Quality |
Bortle 5 |
| Telescope |
Celestron RASA 8 (203/400 f/2) |
| Mount |
Skywatcher EQ6-R Pro |
| Main Cameras |
ZWO ASI 2600 MC Pro Gain 100, Offset 18, -10° TS 2600 MP Gain 100, Offset 50, -10° |
| Focuser |
Celestron Motorfocus |
| Processing | Astropixelprocessor, Photoshop, Pixinsight |
| Filter |
Baader H-Alpha Highspeed 3.5nm Baader O-III Highspeed 4nm Baader UV/IR-Cut Filter |
| Exposure |
RGB: 116 × 5″ (9′ 40″) Ha: 210 × 120″ (7h) OIII: 196 × 120″ (6h 32′) Total: 13h 41′ 40″ |
| Guiding |
ZWO ASI 120MM, PHD2 |
| Calibration |
Flats, Darks, Darkflats |
| Software |
N.I.N.A., EQMod |
| Other |
Artesky Filter Holder |
Gallery
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The Crescent Nebula
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Cave Nebula
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Lion Nebula
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IC 447
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Coathanger, Loch Ness a.o.
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Sh2-140
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Comet C/2022 E3 (ZTF)
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Clamshell Nebula
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Clamshell Nebula in HOO
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The Dark Mermaid
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NGC 6914
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Bode's Galaxy
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Butterfly Nebula (IC 1318)
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Butterfly Nebula (HOO)
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NGC 7822
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Cone Nebula (RGB)
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Cone Nebula (HOO)
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Loch Ness Nebula
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Heart Nebula
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Heart & Soul Nebula
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Iris Nebula
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Horsehead Nebula
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Horsehead Nebula (SHO)
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Pinwheel Galaxy
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Elephant's Trunk Nebula
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Sh2-134 Widefield
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Flaming Star Nebula
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IC 410
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M 13
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M 38 in HaRGB
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Andromeda Galaxy
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NGC 5033 & Friends
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Orion Nebula
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Leo Triplet
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Jellyfish Nebula
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Jellyfish Nebula in HOO
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Regulus & Leo I Dwarf Galaxy
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Sh2-86
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M 3
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h and χ Persei (HaRGB)
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h and χ Persei (RGB)
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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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M 35 & NGC 2158
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Mare Imbrium
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M 44
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M 53 & NGC 5053
