Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: The Thing on Feb 13, 2023, 20:05:52

Title: NGC 2264 and friends in Monoceros (Cone, Christmas Tree and Fox Fur) Take 2
Post by: The Thing on Feb 13, 2023, 20:05:52
Exactly the same composition as the previous but this time in full colour with little interference from the Moon.

Acquisition: N.I.N.A. 67x240s= 4.45hours Gain 120 Offset 4 Temp -5C
Processing:
PixInsight: WBPP drizzle 1x drop size 0.9, autocrop, SCC, ABE, EZDecon, EZDenoise, Arcsinh for colour, GSH, EZStarReduction
Affinity 2: Gaussian Blur 0.2 radius, Vibrance (53,9), Curves

Image date, time and location: 2023-02-12, Manche, France
Telescope aperture and focal ratio: TS1506UNC, TSGPU Coma Corrector, f4 Fl 602mm
Camera and filters used: ZWO ASI294MC Pro, Svbony UVIR
Processing applied: Pixinsight, Affinity Photo 2

Click for Full Size
(http://gallery.orpington-astronomy.org.uk/albums/userpics/10050/normal_ConeXmasFoxFurUVIR_drizzlex1_autocrop_SCC_ABE_EZDecon_EZDenoise_Arsinh_GSH.jpg) (http://gallery.orpington-astronomy.org.uk/albums/userpics/10050/ConeXmasFoxFurUVIR_drizzlex1_autocrop_SCC_ABE_EZDecon_EZDenoise_Arsinh_GSH.jpg)
Title: Re: NGC 2264 and friends in Monoceros (Cone, Christmas Tree and Fox Fur) Take 2
Post by: Carole on Feb 14, 2023, 00:28:43
Ah yes, I like that. 

Am I right in saying -  when you say full colour, is this just in RGB and no narrowband, or a combination of both?

Carole
Title: Re: NGC 2264 and friends in Monoceros (Cone, Christmas Tree and Fox Fur) Take 2
Post by: The Thing on Feb 14, 2023, 10:27:25
Thanks Carole.

Pure RGB using a UV/IR filter, I haven't added the other data since it's in here anyway. The Pixinsight Spectrophotometric Color Calibration tool uses GAIA star colour data AND the QE curve of the sensor AND the filter
absorbtion/transmission curve to calibrate the colour, it's a bit leery!

More pics to come after this flurry but I think the run of clear nights is over now. :(

Duncan