NGC2175 - new scope frustration (Uwe Deutermann)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: IC 2159 · NGC 2174 · NGC 2175 · Sh2-252

Powered byPixInsight

NGC2175 - new scope frustration

Powered byPixInsight

NGC2175 - new scope frustration

I finally had a couple of hours time with the new scope, and I am a bit frustrated. I aimed on purpose an object that I had imaged before with my 4" refractor, to see what the difference between the new and the old scope is. And I have to admit, I take the image from my old 4" any time. The stars with the new scope seem to be "out of shape". I used SGP to find the best focus, this "seemed" to work pretty well, but maybe it is not. Does anybody have an idea why the stars with the 8" RASA are so fuzzy? Collimation? Any help is appreciated!

To note is that the images with the 8" RASA were unguided 30 second exposures, but I do not think that this makes a big difference, the Losmandy mount is working very well for 30 seconds (at least some good out of the test!).

And I almost forgot ... the image on the left is the image from the RASA, the right one is from the Explore Scientific.

One other part is as well interesting: the Explore Scientific image were 10 minute exposures! I can definitely say that the RASA gathered MUCH quicker the same amount of light!

AstroBin Platform open discussions community forum

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	Advanced success
Started	...
Astrometry.net job	2550118
PixInsight job	OJHH2ZC57LJ0KT7HLVNV58UOFBI3XHBW
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	06h08m16s.66
RA (top/left)	06h06m18s.18
RA (top/right)	06h11m52s.40
RA (bottom/right)	06h10m16s.33
RA (bottom/left)	06h04m41s.29

Dec (center)	+20°17′33″.4
Dec (top/left)	+19°34′44″.2
Dec (top/right)	+20°24′47″.1
Dec (bottom/right)	+21°00′17″.3
Dec (bottom/left)	+20°10′01″.2

Image Index:

Contribution Index (beta):

NGC2175 - new scope frustration

NGC2175 - new scope frustration

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

Image Index:

Contribution Index (beta):

NGC2175 - new scope frustration

NGC2175 - new scope frustration

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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