Langrenus Crater - Another crater-gem near the south-eastern limb, with a bit of Flemish history (20221012 00:58cedt) (Wouter Cazaux)

Langrenus Crater - Another crater-gem near the south-eastern limb, with a bit of Flemish history (20221012 00:58cedt)

Acquisition type: Lucky imaging

Langrenus Crater - Another crater-gem near the south-eastern limb, with a bit of Flemish history (20221012 00:58cedt)

Similarly as Petavius, Langrenus is located near the Eastern limb of the moon, and the most favourable time the shadows cast by these crater walls is when the moon is 2-3 days old, or shortly after full moon.

Langrenus is an impact crater located near the eastern lunar limb. The feature is circular in shape, but appears oblong due to foreshortening. It lies on the eastern shore of the Mare Fecunditatis. To the south is the overlapping crater pair Vendelinus and the smaller Lamé.

The inner wall of Langrenus is wide and irregularly terraced, with an average width of about 20 kilometers. The outer ramparts are irregular and hilly, and there is a bright, fragmented ray system spread across the mare to the west. The interior of the crater has a higher albedo than the surroundings, so the crater appears bright when the Sun is overhead.

Flemish astronomer Michel Florent van Langren was the first person to draw a lunar map while giving names to many of the features, in 1645. He named this crater after himself; it is the only one of his named features that has retained his original designation.

TechnoSky102/1100, ASI 178MC, EQ6R-Pro
Langrenus - 20221012 00:58cedt 1080p 100ms G200 60s IR685, Barlow 3x (3300mm/f32)
Langrenus - 20221012 00:50cedt 1080p 89ms G200 60s IR685, Barlow 2x (2200mm/f22)
600 frames, 35% stacked
AutoStakkert, PixInsight

Similar reflections as with my previous post … Petavius crater was captured with IR685 and processed in rgb. Langrenus was captured in IR685, but I split off the red channel and processed that as grayscale. Just wondering what my next actions would be to get these image sharper … is it scope, focus or processing

Any constructive guidance is welcome …

Clear Skies everybody! 🤩✨🔭

Follow me @astrowaut

Final
Original
B

B

Title: Langrenus - 20221012 00:50cedt 1080p 89ms G200 60s IR685, Barlow 2x (2200mm/f22)

Description: Langrenus - 20221012 00:50cedt 1080p 89ms G200 60s IR685, Barlow 2x (2200mm/f22)

Uploaded: ...

PixInsight Addicts
Cloudy Nights
ZWO ASIAIR PRO USERS
The OSC Club (One Shot Camera)
Astrophotographers of Belgium
Fine Art Astrophotography
Suburban Astrophotography
Moon - Lunar closeup
CMOS Imagers
The refractors!
FriendlyCosmos
Light Polluted skies
AAA : Astronomes et Astrographes Amateurs
Beginners AP
Constructive Critique Requested

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

	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

	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

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	n/a
Started	n/a
Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):