M39 (Jerome Proust)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: M 39 · NGC 7092

Powered byPixInsight

M39

Powered byPixInsight

M39

M39

Messier 39 amas ouvert

Messier 39 amas ouvert

Données d’observation

(Époque J2000.0)

Constellation Cygne

Ascension droite (α) 21h 31m 48s

Déclinaison (δ) +48° 26′ 18″

Distance environ 311 pc (∼1 010 a.l.)

Magnitude apparente (V) +4,6

Dimensions apparentes (V) 32 minutes d'arc

Localisation dans la constellation : Cygne

(Voir situation dans la constellation : Cygne)Cygnus IAU.svg

Caractéristiques physiques

Type d'objet Amas ouvert

Dimensions 7

(2,14 pc)

Magnitude absolue -2,5

Découverte

Découvreur(s) Charles Messier

Date 1764

Désignation(s) M39, NGC 7092

Liste des amas ouverts

modifier Consultez la documentation du modèle

M39 (ou NGC 7092) est un amas ouvert situé dans la constellation du Cygne. Il a été découvert par Charles Messier en 1764.

Cet amas est relativement lâche, comprenant une trentaine d'étoiles environ dans un volume de 7 années-lumière de diamètre, il est situé approximativement à 825 années-lumière du système solaire, s'en rapprochant à la vitesse de 28 km/s. L'âge estimé de M39 se situe entre 230 et 300 millions d'années.

La plus brillante étoile de M39 est de type spectral A0, avec une magnitude apparente de +6,83. L'ensemble des étoiles observées dans cet amas semble appartenir à la séquence principale du diagramme de Hertzsprung-Russell, certaines d'entre elles étant à la limite du passage en phase de géante rouge.

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	2292377
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

M39

M39

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

M39

M39

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information