Abell 34, HOO (AnaTa)

Celestial hemisphere: Southern · Constellation: Hydra (Hya) · Contains: PK248+29.1

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Abell 34, HOO

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Abell 34, HOO

Image of Abell 34 has low SNR of 0.4 (for Oiii). I could not detect Sii signal after even 10 min exposure.
So, Sii was not accumulated. H-alpha was dim but visible. Oiii was about 3-fgold brighter than Ha.
Nebula contains small blue star in center. It is pointed on panel B.
Three panels are HOO (Panel C), HOO-annotation (Panel B) and RGB-annotation (Panel A)

Processing:
Dynamic Crop for R, G, B, Ha, Oiii
GraXpert for Ha, Oiii, R, G and B.
RGB is combined.
DBE for RGB
Color calibration for RGB
Blur and Noise XT for RGB, Oiii, and Ha.
Star XT for RGB, Ha, and Oiii
Standard linear HT stretching for RGB, Oiii, Ha and RGB-stars (moderate stretching)

Panels C and B:
HOO as Ha-R, Oiii-G and Oiii-B was created.
Noise XT and then HT stretch again for both.
Mask with Lum.
LHE, Kernel radius 40 power 0.5, and 150 and 300, power 0.2
MMT sharp, 0.03-0.06 setting.
Hue adjustment for HOO images. This is toughest step.
Curve for saturation and brightness adjustment for HOO.
Curve for saturation adjustment for RGB stars.
Added RGB stars to the Nebulas.
Annotation for panel B.
Done

Panel A:
Stretched RGB was processed
Curve for saturation of stars, The Abell 34 was invisible.
Annotation
Done.

Original
B
Final
C

Nebulas (Planetary)

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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	9556955
PixInsight job	8OV6KMBF973ZUXSV25252QOQQIFUM065
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h45m32s.905
RA (top/left)	09h44m49s.495
RA (top/right)	09h46m17s.768
RA (bottom/right)	09h46m16s.210
RA (bottom/left)	09h44m48s.131

Dec (center)	-13°10′48″.70
Dec (top/left)	-13°21′43″.85
Dec (top/right)	-13°21′22″.20
Dec (bottom/right)	-12°59′53″.19
Dec (bottom/left)	-13°00′14″.100

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Abell 34, HOO

Abell 34, HOO

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Abell 34, HOO

Abell 34, HOO

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