SH2-157 “The Lobster Claw” in HST Palette

            Object:  SH2-157 “The Lobster Claw” in HST Palette
This is an emission complex on the border of Cepheus and Cassiopeia that resembles a New England rock lobster claw. The small start cluster NGC7510 is visible lower right beneath the claw.
This image was done using the HST or Hubble Space Telescope Palette which is accomplished by combining sub frames using three narrowband filters that capture light produced by glowing hydrogen (Ha), oxygen (OIII) and sulfur (SII) present in the nebula. Green is assigned to hydrogen, blue to oxygen and red to the sulfur.

-Acquisition Date:  Started on 10/20/2017 – Finished 10/27/2017
-Location: Western Massachusetts 
-Camera: SBIG STF8300M @ -15°C
-Telescope: Takahashi FSQ106EDX-III 
-Mount: Astro-Physics AP1100
-Guide scope: Off Axis Guiding 
-Guide Camera: Starlight Express Lodestar 2
Filters:
-Astrodon 3 nm Hydrogen Alpha (Ha): 15 x 30min. (450min) bin 1x1
-Astrodon 3nm Oxygen III (OIII):14 x 30min. (420 min) bin 1x1
-Astrodon 5nm Sulfur II (SII):14 x 30min. (420 min) bin 1x1
Total Exposure:1290min. (21.5hr)

Limiting Magnitude: 5.1

   

Taken on: October 27, 2017

Tags:

SH2-157

Lobster_Claw_Nebula

Astrometrydotnet:id=nova2301077

Astrometrydotnet:status=solved

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Sets appears in: • HST • CCD more » • Narrowband • Nebulae « less

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