Earth's Moon - Humboldt Crater (Jason Guenzel)

Earth's Moon - Humboldt Crater

Well, there certainly aren't many contrast features in a full moon. Slewing around the limb I found the trio of Humboldt Crater (center), Hecataeus Crater (to the side), and Phillips Crater (foreground center) to have a little more visual interest than anywhere else. Humboldt is the more interesting one here (with more of a central range than a peak). The long shadows are cast back toward the rear rim. The floor has some significant rilles that are only barely visible from this steep angle. Humboldt is about 125 mi (200 km) in diameter so, in scale, each pixel across the crater represents a little less than 800 ft (244 m) on the moon. The image here is 3x drizzled.

This marks a "first light" image for my TPO 12" f/4 Imaging Newtonian...the first finished image anyway. In the eternal quest to do more with less, I settled on trying this thing out for planetary work. While it has the aperture, the mechanics of the scope certainly need constant supervision. I think I had things settled down after 4-5 days of trying (with bad seeing not helping matters). All in all, I think it did very well considering the price point. When doing these things, I have to remind myself not to get worked up over tinkering. This is a 12" aperture scope and may arguably be one of the most economical ways to get there. Aperture fever makes you do some silly things, but we'll still get to see how this pans out.

TPO 12" f/4 Imaging Newtonian, 5x Powermate, ZWO Red Filter, ASI174MM-Cool

I'd put the seeing at close to 4 when I shot this but there was a lot of haze.

Original
B
Final
C

B

Description: Flipped

Uploaded: ...

C

Description: Little sharpening... why not?

Uploaded: ...

Solar System Imaging
Cloudy Nights

	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):