Hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  Christmas Tree cluster  ·  Cone nebula  ·  IC 2169  ·  IC 448  ·  NGC 2239  ·  NGC 2244  ·  NGC 2251  ·  NGC 2252  ·  NGC 2264  ·  Rosette nebula  ·  The star 12Mon  ·  The star 13Mon  ·  The star 15Mon  ·  The star 16Mon  ·  The star 17Mon  ·  The star 18Mon  ·  The star 30Gem  ·  The star 35Gem  ·  The star εMon  ·  The star ξGem
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rosette, cone, and fox fur nebula, plus christmas tree cluster, 



    
        

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rosette, cone, and fox fur nebula, plus christmas tree cluster
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rosette, cone, and fox fur nebula, plus christmas tree cluster

Technical card

Imaging telescopes or lenses: Canon 100mm f/2.8 macro

Imaging cameras: Canon EOS 50D

Mounts: Orion SkyView Pro EQ

Guiding telescopes or lenses: Orion Finderscope 9x50

Guiding cameras: Meade DSI

Software: PixInsight  ·  PHD guiding

Filters: Astronomik CLS CCD Filter


Frames: 39x480" (5h 12')

Integration: 5h 12'


Astrometry.net job: 91993

RA center: 6h 35' 56"

DEC center: +8° 0' 50"

Pixel scale: 9.790 arcsec/pixel

Orientation: 90.445 degrees

Field radius: 7.037 degrees


Resolution: 620x380

Description

39x8mins (5h12m), astromodded canon [email protected] + CLS filter, with canon 100mm f/2.8 macro @ f/5.6.

50 darks, 50 bias, 50 flats. calibrated, registered, stacked and processed in pixinsight 1.6.9.

slight crop, but lower right hand corner is the corner of the sensor.

somewhere along the way i blew out the bright stars. not sure what happened there.

this is first light for this lens, in my hands anyway. at f/4 it still seemed like there was a lot of dispersion and loss of focus at the corners, so i stopped to f5.6. i guess the cone area needs longer subs/more integration time... it is very faint. perhaps i should have stayed at f/4.

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rosette, cone, and fox fur nebula, plus christmas tree cluster, 



    
        

            pfile

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