CED 214 / NGC 7822
Emission Nebula
NGC 7822 is a young star forming complex in the constellation of Cepheus. The complex encompasses the emission region designated Sharpless 171, and the young cluster of stars named Berkeley 59. The complex is believed to be some 800–1000 pc distant, with the younger components aged no more than a few million years. The complex also includes one of the hottest stars discovered within 1 kpc of the Sun, namely BD+66 1673, which is an eclipsing binary system consisting of an O5V that exhibits a surface temperature of nearly 45,000 K and a luminosity about 100,000 times that of the Sun.
In order to bring out as many details as possible, I decided to use the false color technique, that got famous by the pictures of the Hubble Space Telescopes. The "real" colors are assigned to other colors: sulfur (Sii) = red, hydrogen (h) = green, oxygen (o) = blue. This results in an increase in contrast, and more details become visible.
Take a look at an alternate version using a different color palette:
Take a deep look into the center:
In order to bring out as many details as possible, I decided to use the false color technique, that got famous by the pictures of the Hubble Space Telescopes. The "real" colors are assigned to other colors: sulfur (Sii) = red, hydrogen (h) = green, oxygen (o) = blue. This results in an increase in contrast, and more details become visible.
Take a look at an alternate version using a different color palette:
view image
view image
Image Details
| Date |
September 7, 9, 10, 2023 |
| LOCATion |
Hannover (Germany) |
| Sky Quality |
Bortle 5 |
| Telescope |
Celestron RASA 8 (203/400 f/2) |
| Mount |
Skywatcher EQ6-R Pro |
| Main Camera |
TS 2600 MP Gain 100, Offset 200, -10° |
| Focuser |
Celestron Motorfocus |
| Processing | Astropixelprocessor, Photoshop, Pixinsight |
| Filter |
Baader H-Alpha Highspeed 3.5nm Baader O-III Highspeed 4nm Baader S-II Highspeed 4nm |
| Exposure |
Ha: 178 × 120″ (5h 56′) OIII: 174 ×120″ (5h 48′) SII: 176 × 120″ (5h 52′) Total: 17h 36′ |
| Guiding |
ZWO ASI 120MM, PHD2 |
| Calibration |
Flats, Darks, Darkflats |
| Software |
N.I.N.A., EQMod |
| Other |
Artesky Filter Holder |
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
