M8 (Jan Monsuur) - AstroBin

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: Lagoon Nebula · M 8 · NGC 6523 · NGC 6526 · NGC 6530 · NGC 6544 · The star 7Sgr · The star 9Sgr

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M8

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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M8

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

This photo of M8 is the first one I made with a Rasa 8 Celestron Astrograph mounted on an RST 135 mount. No guiding. The telescoop was focused by hand and eye only once at the beginning of the session. It was full moon. The object was at a low altitude, which amazed me because it happens to be the "deep sky object of the month August" of the Dutch magazine "Sterrengids 2020". However, this low altitude allowed me to use the mount in azimuth mode, giving only little field rotation. I used this mode because I could not yet Polar Align at the position the system appeared to be.

I used 50 bias frames to build a SuperBias, and 50 dark frames for a MasterDark. No flats.

Next I will concentrate on Equatorial Mode, better focussing and better PostProcessing. But still no guiding, because I want to find out if guiding is necessary with this very fast scope.

At this moment I feel very happy with this photograph, the first one I made after a long period of time.

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Final
B

B

Description: In this version I applied the "star de-emphasis" technique of Adam Block. And I increased the contrast in the nebula.

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	Distinct awarded users	Total awarded images
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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
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	Image of the day	Top pick	Top pick nominations	Total submitted
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Professional, scientific grade data
Mix of multiple sources
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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.
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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	3763203
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Image Index:

Contribution Index (beta):

M8

M8

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

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