Sh2-155 (nota come Nebulosa Grotta) è una nebulosa ad emissione visibile nella costellazione di Cefeo. (Giuseppe De Pace)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep)

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Sh2-155 (nota come Nebulosa Grotta) è una nebulosa ad emissione visibile nella costellazione di Cefeo.

Powered byPixInsight

Sh2-155 (nota come Nebulosa Grotta) è una nebulosa ad emissione visibile nella costellazione di Cefeo.

La nebulosa appare come un insieme disomogeneo di parti brillanti e nebulose oscure;
una parte è la meno oscurata e mostra i caratteristici colori rossastri tipici delle regioni HII.
L'altra è invece interessata da locali oscuramenti; la nebulosa oscura più notevole,
che dà il nome Nebulosa Grotta al complesso, si trova nell'angolo ad ovest.
A breve distanza da questa si trova una piccola nebulosa a riflessione, nota come LNB524,
che circonda un gruppo di stelle di nona magnitudine.
La distanza del complesso nebuloso è stimata sui 2400 anni luce dal Sistema Solare.

ASKAR FRA 600 QUINTUPLETTO 108/600 @F5.6

QHY268M Pro @ 0°C [gain:56-offset:25]

AZEQ6 GT

5 ore (73 light da 300") per Sii

5 ore (57 light da 300") per Ha

7 ore (88 light da 300") per Oiii

2 ore (63 light da 120") per RED

2 ore (65 light da 120") per GREEN

2 ore (62 light da 120") per BLU

Filtri da 7nm OPTLONG

Ruota portafiltri 7x2" QHYCFW3

QHY OAG-M con QHY5II-L mono

N.I.N.A. + APP + Pixinsight + PS

Balcone di casa a Bortle 8 (TORINO) Sessioni di Luglio 2023

Imagers of Italy

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	8419333
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Sh2-155 (nota come Nebulosa Grotta) è una nebulosa ad emissione visibile nella costellazione di Cefeo.

Sh2-155 (nota come Nebulosa Grotta) è una nebulosa ad emissione visibile nella costellazione di Cefeo.

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Image Index:

Contribution Index (beta):

Sh2-155 (nota come Nebulosa Grotta) è una nebulosa ad emissione visibile nella costellazione di Cefeo.

Sh2-155 (nota come Nebulosa Grotta) è una nebulosa ad emissione visibile nella costellazione di Cefeo.

Equipment

Acquisition details

Description

Comments

Sky plot

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In these public groups

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