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Contains:  Triangulum galaxy, M 33, NGC 598
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The Triangulum Galaxy, M33, 


            Steven Bellavia
The Triangulum Galaxy, M33

The Triangulum Galaxy, M33

Technical card

Resolution: 3000x2000

Dates:Dec. 29, 2018

Frames:IDAS UIBAR-III: 46x180" (gain: 100.00) -15C bin 1x1

Integration: 2.3 hours

Darks: ~30

Avg. Moon age: 22.24 days

Avg. Moon phase: 48.98%

Bortle Dark-Sky Scale: 4.00 job: 2442505

RA center: 1h 33' 48"

DEC center: +30° 39' 21"

Pixel scale: 1.435 arcsec/pixel

Orientation: 90.434 degrees

Field radius: 0.719

Data source: Traveller


The Triangulum Galaxy (M33, NGC 598) is a spiral galaxy approximately 3 million light-years from Earth in the constellation Triangulum. At over 50,000 light-years in diameter, it is the third-largest member of the Local Group of galaxies, which includes the Milky Way, the Andromeda Galaxy and about 44 other smaller galaxies. It is one of the most distant deep space objects that can be viewed with the naked eye, in very dark skies, which I have seen several times from a dark sky site, and from home with small binoculars. This image shows M33's blue star clusters and pinkish star forming regions along the galaxy's loosely wound spiral arms.



Steven Bellavia
License: None (All rights reserved)

Sky plot

Sky plot


The Triangulum Galaxy, M33, 


            Steven Bellavia