Tricolor render of Lobster Claw nebula w/ RGB stars (AstroEspi)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: NGC 7510

Tricolor render of Lobster Claw nebula w/ RGB stars, AstroEspi

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Tricolor render of Lobster Claw nebula w/ RGB stars

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Tricolor render of Lobster Claw nebula w/ RGB stars

A quite standard combination of S, H and O filters:

R = H
G = .5*H + .5*O
B = O

I started taking 300s subs at -20ºC and gain 300, but they seemed a bit overexposed and the last ones were taken at gain 200, -15ºC (to avoid forcing the cooling system against the high temperatures last august). The result is then a mix of different gains, exposures and temperatures that made the calibration/processing a mess.

H-alpha
- 42 subs 180s, gain 200, -15ºC
- 12 subs 300s, gain 200, -15ºC
- 66 subs 300s, gain 300, -20ºC

OIII
- 45 subs 180s, gain 300, -15ºC
- 15 subs 300s, gain 200, -15ºC
- 25 subs 180s, gain 300, -20ºC

SII
- 44 subs 180s, gain 200, -15ºC
- 19 subs 300s, gain 200, -15ºC

RGB
- 19 subs 60s, gain 139, -20ºC each filter

Total integration time 18h5m

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Status	Basic success
Started	...
Astrometry.net job	6277781
PixInsight job	n/a
PixInsight queue size	n/a
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Tricolor render of Lobster Claw nebula w/ RGB stars

Tricolor render of Lobster Claw nebula w/ RGB stars

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Tricolor render of Lobster Claw nebula w/ RGB stars

Tricolor render of Lobster Claw nebula w/ RGB stars

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