m20 (Giovanni Fiume)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: M 20 · M 21 · NGC 6514 · NGC 6531 · The star 4Sgr · Trifid Nebula

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m20

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m20

Prove con OSC.

Non sono ancora sicuro di aver fatto la cosa giusta acquistando una OSC (ZWO ASI 533MC-PRO) per riprendere da un cielo cittadino Bortle 7-8.

Ho acquistato anche un filtro Optolong L-eNanche da 2", e ho già un IDAS-D2 per l'inquinamento luminoso.

In questo caso ho usato l'IDAS perché ricordavo che quando ripresi questa nebulosa con una Canon 1200D modificata Baader, venne bene.

Oggetto molto luminoso che buca il cielo anche dalla città e nonostante sia bassissimo sull'orizzonte.

Seeing pessimo ma che PHD2 è riuscito a gestire la cosa con la guida multi-star.

La routine di messa a fuoco di SGPro ha ritornato un HFR di 2.1".

*****

Tests with OSC.

I'm still not sure I did the right thing by purchasing an OSC (ZWO ASI 533MC-PRO) to shoot from a Bortle 7-8 city sky.

I also bought an Optolong L-eNanche 2 "filter, and I already have an IDAS-D2 for light pollution.

In this case I used IDAS because I remembered that when I shot this nebula with a Baader modified Canon 1200D, it turned out fine.

Very bright object that can be seen very well even from Salerno city and despite being very low on the horizon.

Bad seeing but PHD2 managed to handle with the multi-star guide.

SGPro's focus routine returned an HFR of 2.1".

DSO

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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.

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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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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	Advanced failed
Started	...
Astrometry.net job	4719579
PixInsight job	5QOU7ERA61ORT79F6L0X7T4ONGHG2IBN
PixInsight queue size	n/a
PixInsight stage	PLATE_SOLVING_IMAGE

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