Rosette Nebula, Cone Nebula, and Friends at 85mm in Ha (JDJ)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: 12 Mon · 12.53 · 13 Mon · 14 Mon · 15 S Mon · 16 Mon · 17 Mon · 18 Mon · 238 Hypatia · 75 l Ori · 77 Ori · 78 Ori · 8 eps Mon · B37 · B38 · B39 · Christmas Tree cluster · Cone nebula · Hubble's variable neb · IC 2169 · IC 446 · IC 448 · LBN 895 · LBN 898 · LBN 899 · LBN 901 · LBN 902 · LBN 903 · LBN 904 · LBN 911 · And 83 more.

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Rosette Nebula, Cone Nebula, and Friends at 85mm in Ha

Powered byPixInsight

Rosette Nebula, Cone Nebula, and Friends at 85mm in Ha

This wide field image of the region around the Rosette Nebula was captured on the nights of January 19/25 and February 2, 2020 using a short telephoto lens and dual narrowband filter. The field of view also includes the Cone Nebula, Foxfur Nebula, Christmas Tree Cluster, and a scattering of H-alpha regions. This is image includes the H-alpha data (red channel).

Imaged with 85mm/F1.4 Rokinon at F/2, STC Duo Narrowband Clip Filter, and full spectrum modified Nikon D5300.

Total integration time was ~5 hours using 70 subs at ISO200 x 240 sec. Pre-processed using PixInsight Batch Pre-Processing (BPP) script. Images calibrated using darks, bias, and flats. Extracted red/green/blue channels using BatchChannelExtraction script. R, G, & B channels registered and stacked independently using StarAlighment and Integration. R channel data gives the Ha image. Averaged G & B channels using Pixelmath to generate OIII image.

R and Average of G+B channels individually post-processed in Pixinsight: Cropped, gradient removal with ABE, HDRComposition (binarizing threshold = 0.6) to combine different exposure lengths, MLT for noise reduction, stretched in two stages, stage 1 stretch using histogram transformation with starmask generaated using starnet++ (to start to bring out the nebulocity), stage 2 stretch using masked stretch, Curves Transformation, TGVDenoise for noise reduction, HDR transform, Local histogram transform, morphological transform to shrink stars.

Cloudy Nights
DSLR narrowband
Suburban Astrophotography
The OSC Club (One Shot Camera)
Camera Lens Astrophotography

85mm Rokinon

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	3240532
PixInsight job	TDPNREY5SL73NG7E7HF7UBNATN2LU61J
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h33m00s.41
RA (top/left)	06h51m54s.30
RA (top/right)	06h52m22s.13
RA (bottom/right)	06h13m38s.80
RA (bottom/left)	06h14m01s.58

Dec (center)	+04°33′35″.5
Dec (top/left)	-02°49′12″.2
Dec (top/right)	+11°54′06″.5
Dec (bottom/right)	+11°53′53″.2
Dec (bottom/left)	-02°48′48″.1

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Rosette Nebula, Cone Nebula, and Friends at 85mm in Ha

Rosette Nebula, Cone Nebula, and Friends at 85mm in Ha

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Image Index:

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Rosette Nebula, Cone Nebula, and Friends at 85mm in Ha

Rosette Nebula, Cone Nebula, and Friends at 85mm in Ha

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Acquisition details

Description

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Sky plot

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