Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Lagoon Nebula  ·  M 8  ·  NGC 6523  ·  NGC 6526  ·  NGC 6530  ·  The star 7 Sgr  ·  The star 9 Sgr
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M8, Lagoon Nebula, UHC-S, David Dearden
M8, Lagoon Nebula, UHC-S
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M8, Lagoon Nebula, UHC-S

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Acquisition details

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Description

Date: 21 Jun 2012

Subject: M8, Lagoon Nebula

Scope: AT8IN + 0.5x Antares telereducer

Filter: Baader UHC-S

Mount: CG-5 (Synta motors)

Guiding: Orion ST80 + 0.5x Antares telereducer + DSI Ic + PHD

Camera: DSI IIc

Acquisition: Nebulosity 3.0.6

Exposure: 36 x 240 s

Stacking: Neb 3, bias included, auto quality screen normalize first, trans+rot align, 1.5 SD stack

Processing: Digital development, Keller stretch, power stretch, unsharp mask in N3, CS5 layer mask combine (a less-stretched image feathered in for the core of the nebula), levels, saturation, brightness, Astronomy Tools local contrast enhance. In the revised version, I applied additional Astronomy Tools star size reduction.

Comments

Revisions

  • M8, Lagoon Nebula, UHC-S, David Dearden
    Original
  • Final
    M8, Lagoon Nebula, UHC-S, David Dearden
    B

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M8, Lagoon Nebula, UHC-S, David Dearden