Hemisphere:  Northern  ·  Constellation: Triangulum (Tri)  ·  Contains:  IC 143  ·  NGC 604
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NGC 604 Nebula Located Within M33 in HOO, 



    
        

            Douglas J Struble
NGC 604 Nebula Located Within M33 in HOO
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NGC 604 Nebula Located Within M33 in HOO

Getting plate-solving status, please wait...
NGC 604 Nebula Located Within M33 in HOO, 



    
        

            Douglas J Struble
NGC 604 Nebula Located Within M33 in HOO
Powered byPixInsight

NGC 604 Nebula Located Within M33 in HOO

Technical card

Imaging telescopes or lenses: Explore Scientific ED165CF FPL-53

Imaging cameras: ZWO ASI1600MM-PRO

Mounts: Astro-Physics Mach 1 GTO

Guiding telescopes or lenses: Orion 80mm Short Tube

Guiding cameras: Starlight Xpress Lodestar x2

Software: Photoshop CC  ·  PHD2  ·  Sequence Generator Pro  ·  PixInsight

Filters: Astronomik Deep-Sky G  ·  Astronomik Deep-Sky R  ·  Astrodon OIII 3nm  ·  Astronomik Ha 6nm 1.25''

Accessory: ZWO 8x 1.25" Filter Wheel (EFW)  ·  QHYCCD PoleMaster  ·  Hotech 2" SCA Self-Centering Field Flattener  ·  MoonLite CFL 2.5" Large Format Focuser


Dates:Dec. 7, 2020Dec. 31, 2020Jan. 27, 2021Jan. 29, 2021

Frames:
Astrodon OIII 3nm: 314x120" (10h 28') (gain: 200.00) -20C bin 1x1
Astronomik Deep-Sky B: 57x60" (57') (gain: 0.00) -20C bin 1x1
Astronomik Deep-Sky G: 60x60" (1h) (gain: 0.00) -20C bin 1x1
Astronomik Deep-Sky R: 69x60" (1h 9') (gain: 0.00) -20C
Astronomik Ha 6nm 1.25'': 434x120" (14h 28') (gain: 200.00) -20C bin 1x1

Integration: 28h 2'

Darks: 50

Flats: 50

Bias: 250

Avg. Moon age: 16.65 days

Avg. Moon phase: 87.84%

Bortle Dark-Sky Scale: 8.00


Basic astrometry details

Astrometry.net job: 4198709

RA center: 01h34m21s.4

DEC center: +30°4843

Pixel scale: 0.340 arcsec/pixel

Orientation: 280.679 degrees

Field radius: 0.100 degrees


Resolution: 1658x1325

Locations: Backyard White Zone Observatory, Taylor, MI, Michigan, United States

Data source: Backyard

Description

This has been something I have been wanting to try for a long time; capturing and isolating a nebula within another galaxy. NGC 604 is rather huge compared to M33, but still rather small to resolve the fine details. It was a major challenge. The data consists mainly of Ha and OIII with the addition of RGB stars. I drizzled the data this time, so you will notice my normal image scale of 0.68"/pixel being cut in half. I processed the whole region like this, so there will be some more interesting images to come; especially some massive OIII regions I have never seen before.

NGC 604 is a star forming region where some 200 hot, young, massive stars reside. It was discovered by William Herschel on September 11, 1784. It is among the largest H II regions in the Local Group of galaxies; at the galaxy's estimated distance of 2.7 million light-years, its longest diameter is roughly 1,520 light years (~460 parsecs) (14.38031 exameters), over 40 times the size of the visible portion of the Orion Nebula. It is over 6,300 times more luminous than the Orion Nebula, and if it were at the same distance it would outshine Venus. Its gas is ionized by a cluster of massive stars at its center with 200 stars of spectral type O and WR, a mass of 105 solar masses, and an age of 3.5 million years; however, unlike the Large Magellanic Cloud's Tarantula Nebula central cluster (R136), NGC 604's one is much less compact and more similar to a large stellar association.

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NGC 604 Nebula Located Within M33 in HOO, 



    
        

            Douglas J Struble