Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888  ·  Sh2-105
Crescent Nebula, NGC6888, Aleix Roig
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Description

The Crescent Nebula, NGC 6888, is located some 5,000 light-years away from Earth.It is surrounded by huge clouds of gas and dust in the constellation of Cygnus. NGC 6888’s central star is classified as a Wolf-Rayet star (WR 136). This star will become a supernovae in the near future.To capture this image I used Hα and [OIII] narrow band filters in order to capture the faint details of this amazing deep sky structure.

Image details:

Hα: 126×300″
[OIII]: 50×300″
L: 40×120″
RGB: (20x120″)x3


All images at 120Gain -15ºC bin2
Calibrated with 50 flats, 50 darks, 50 bias

Total exposure: 18h

Average darkness: 21 mag/arcsec2
Image resolution: 2.12”/pixel

Equipment:

FSQ85ED telescope
Mesu200 mount
ASI294MM Pro camera with ZWO EFW 8 pos
Guiding with ASI174MC and ZWO OAG
Baader filters

Software:
SGP, PHD2, APP, PIX, LR, PS, TPZ.

Aleix Roig - Prades, Tarragona (Catalonia, Spain), July 2021.

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  • Crescent Nebula, NGC6888, Aleix Roig
    Original
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    Crescent Nebula, NGC6888, Aleix Roig
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Description: The Crescent Nebula, NGC 6888, is located some 5,000 light-years away from Earth.

It is surrounded by huge clouds of gas and dust in the constellation of Cygnus. NGC 6888’s central star is classified as a Wolf-Rayet star (WR 136). This star will become a supernovae in the near future.

To capture this image I used Hα and [OIII] narrow band filters in order to capture the faint details of this amazing deep sky structure.

​​​​​​​Image details:

Hα: 126×300″
[OIII]: 50×300″
L: 40×120″
RGB: (20x120″)x3


All images at 120Gain -15ºC bin2
Calibrated with 50 flats, 50 darks, 50 bias

Total exposure: 18h

Average darkness: 21 mag/arcsec2
Image resolution: 2.12”/pixel

Equipment:

FSQ85ED telescope
Mesu200 mount
ASI294MM Pro camera with ZWO EFW 8 pos
Guiding with ASI174MC and ZWO OAG
Baader filters

Software:
SGP, PHD2, APP, PIX, LR, PS, TPZ.

Aleix Roig - Prades, Tarragona (Catalonia, Spain), July 2021.

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Crescent Nebula, NGC6888, Aleix Roig

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