M104 - The Sombrero Galaxy (lefty7283)

Celestial hemisphere: Southern · Constellation: Virgo (Vir) · Contains: M 104 · NGC 4594 · Sombrero galaxy

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M104 - The Sombrero Galaxy

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M104 - The Sombrero Galaxy

Aparently M68 was obstructed by my apartment, but fortunately M104 wasn't. This was kind of a last minute decision to image, as I usually dont do galaxies under an 85% moon. Captured on April 15th, 2019 from a bortle 7 zone.

**Equipment:**

* TPO 6" F/4 Imaging Newtonian

* Orion Sirius EQ-G

* ZWO ASI1600MM-Pro

* Skywatcher Quattro Coma Corrector

* ZWO EFW 8x1.25"/31mm

* Astronomik LRGB+CLS Filters- 31mm

* Astrodon H-alpha 5nm 31mm

* Agena 50mm Deluxe Straight-Through Guide Scope

* ZWO ASI-120MC for guiding

* Moonlite Autofocuser

**Acquisition:** 1 hour 46 minutes (Camera at Unity Gain, -20°C)

* CLS- 85x30"

* Red- 21x60"

* Green- 21x60"

* Blue- 21x60"

* Darks- 30

* Flats- 30 per filter

**Capture Software:**

* EQMod mount control. Captured using [N.I.N.A.](https://nighttime-imaging.eu/) and PHD2 for guiding and dithering.

**[PixInsight Processing](https://i.imgur.com/mllLyct.png):**

* BatchPreProcessing

* StarAlignment

* [Blink](https://www.youtube.com/watch?v=sJeuWZNWImE&feature=youtu.be&t=40)

* ImageIntegration

* DynamicCrop

* DynamicBackgroundExtraction 2X

* **Luminance:**

* TVG/MMT Noise Reduction

* HistogramTransformation

* **RGB:**

* LinearFit to Green

* ChannelCombination

* DBE

* PhotometricColorCalibration

* HSVRepair

* ArcsinhStretch

* HistogramTransformation

* LRGBCombination with luminance

* [Curve](https://i.imgur.com/d8aEG3q.png)Transformations

* ACDNR

* Annotation

Suburban Astrophotography
/r/astrophotography
Broadband under Bortle 7/8/9

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Basic success
Started	...
Astrometry.net job	3235042
PixInsight job	GVQ8S8THPRPFLTPGHDUYEU22EJNIF4P8
PixInsight queue size	n/a
PixInsight stage	n/a

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Contribution Index (beta):

M104 - The Sombrero Galaxy

M104 - The Sombrero Galaxy

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Contribution Index (beta):

M104 - The Sombrero Galaxy

M104 - The Sombrero Galaxy

Equipment

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Description

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