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Contains:  M 25, IC 4725
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M25 in Sagittarius, 





    
        

            Michael Feigenbaum
M25 in Sagittarius

M25 in Sagittarius

Technical card

Imaging telescope or lens:Vixen R200SS

Imaging camera:ZWO ASI 183MC Pro (cooled)

Mount:Orion HDX110 EQ-G

Guiding telescope or lens:ZWO 30F4 Guidescope

Guiding camera:ZWO ASI 120 MC

Software:Stark Labs Nebulocity 4Stark Labs PHD 2.6DSSPleiades Astrophoto PixInsight

Resolution: 5335x3706

Dates:June 26, 2019

Frames: 348x60" (gain: 111.00) -5C bin 1x1

Integration: 5.8 hours

Darks: ~50

Flats: ~60

Avg. Moon age: 23.14 days

Avg. Moon phase: 39.47%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 20.98

Astrometry.net job: 2769049

RA center: 277.949 degrees

DEC center: -19.100 degrees

Pixel scale: 0.618 arcsec/pixel

Orientation: 189.008 degrees

Field radius: 0.557 degrees

Data source: Backyard

Description

M25 in Sagittarius is about 2,000 ly away and contains 601 stars. It is approximately 90mm years old and it appears as though the spectral class "M" stars are not really part of the cluster. the foregoing information was obtained from messier-objects.com.

This is another beautiful subject in the Southern Milky Way visible this time of year and quite low in the sky at my particular latitude. This is such a wonderful area of the night sky and I think I will be working in this general area for the next couple of months.

I continue to work on my star shapes and processing in general and I think the image is another step forward in that regards.

Comments and/or criticism always welcome,
CS to all!!
Mike

Comments

Author

MikeF29
Michael Feigenbaum
License: None (All rights reserved)
1271
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M25 in Sagittarius, 





    
        

            Michael Feigenbaum