Hemisphere:  Southern  ·  Constellation: Dorado (Dor)  ·  Contains:  NGC 1966  ·  NGC 2048  ·  NGC 2070  ·  NGC 2077  ·  Tarantula nebula
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Around the Tarantula Nebula, 


            Wei-Hao Wang
Around the Tarantula Nebula
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Around the Tarantula Nebula

Technical card

Imaging telescopes or lenses: Takahashi TOA 150

Imaging cameras: Canon EOS 5D Mark II MOD  ·  Pentax 645z Mod

Mounts: Takahashi EM-400 Temma2

Guiding telescopes or lenses: SharpStar 50 ED

Guiding cameras: ZWO ASI290MM Mini

Focal reducers: Takahashi TOA 67 Flattener  ·  Takahashi TOA 645 Reducer F5.6

Software: Starnet++ Starnet ++  ·  PixInsight  ·  RegiStar  ·  Photoshop CC

Dates:Dec. 15, 2012Feb. 5, 2019Feb. 6, 2019

77x300" ISO1600
8x60" ISO1600
H alpha: 33x480" ISO1600

Integration: 11.0 hours

Avg. Moon age: 1.49 days

Avg. Moon phase: 3.15%

Bortle Dark-Sky Scale: 1.00

Basic astrometry details

Astrometry.net job: 3252538

RA center: 5h 36' 52"

DEC center: -69° 15' 57"

Pixel scale: 1.528 arcsec/pixel

Orientation: 359.852 degrees

Field radius: 1.592 degrees

Resolution: 6000x4500

Locations: Avon Valley, York, Western Australia, Australia

Data source: Traveller


This is a single-frame/mosaic hybrid. The center of the image has an effective integration of about 130 minutes per pixel in RGB. The field of view is slightly expanded with additional mosaic panels, and the effective integration is about 50 minutes per pixel in the expanded region. Because the integration is spread across the image, the depth of this image is not as good as what the total integration time (11 hr) would suggest. The H-alpha exposure is more uniform, about 50 minutes per pixel everywhere.

Back to 2012, I took some short exposures for the center of the Tarantula Nebula. They are blended in this picture.


Sky plot

Sky plot


Around the Tarantula Nebula, 


            Wei-Hao Wang

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