M7 (Giovanni) - AstroBin

Celestial hemisphere: Southern · Constellation: Scorpius (Sco) · Contains: M 7 · NGC 6475

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M7

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M7

M7 - unguided, elevation about 6°

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Messier 7 (auch als NGC 6475 bezeichnet) ist ein +3,3 mag heller offener Sternhaufen im Ostteil des Skorpion nördlich von Lesath mit einer Ausdehnung von 80'. Der Haufen befindet sich etwa 800 Lichtjahre entfernt in Richtung des galaktischen Zentrums. Er besteht aus rund 100 Sternen und hat einen Durchmesser von etwa 25 Lichtjahren. Sein Alter wird auf 200 Millionen Jahre geschätzt.[4]

Im Jahr 130 erwähnte der Mathematiker und Astronomen Claudius Ptolemäus diesen Sternhaufen als Erster, deswegen wird er auch Ptolemaeus Sternhaufen genannt. Nach den Plejaden (Messier 45) und der Praesepe (Messier 44) ist M 7 der dritthellste Sternhaufen an unserem Himmel.[5] Er ist in Mitteleuropa nur schwer zu beobachten, aber in südlichen Breiten ein auffälliges Objekt. M7 ist das südlichste Objekt im Messier-Katalog. (Wikipedia).

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Messier

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.

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	2124011
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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