There is a strange infinity/dumbbell shaped structure like the one below.  Full image, a stretch of 814W capture.  You can also see them just at the bottom, two similar faint structures. The same is seen in F606W at the exact location, though very faint. Filter details https://hst-docs.stsci.edu/acsihb/chapter-10-imaging-reference-material/10-3-throughputs-and-correction-tables/wfc-f814whttps://hst-docs.stsci.edu/acsihb/chapter-10-imaging-reference-material/10-3-throughputs-and-correction-tables/wfc-f606wIt makes sense it is seen in both 814W/606W as there is a slight overlap in response to wavelengths in these filters. From proposal id 12812 https://archive.stsci.edu/proposal_search.php?mission=hst&id=12812Plan is too look for similar structures, around planetary nebulas if it is not something instrument/optical related.
|
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
Optical gremlins, even the HST isn't free of them…
|
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
Eyes of God…playing Kilroy was here  |
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
You have to find it in an overlapping image to confirm or overlay the 2 images and see if there is enough movement of the field to confirm it isn't an aberration.
|
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
andrea tasselli:
Optical gremlins, even the HST isn't free of them... Yes, that was my first guess also  . I reached out to Mehmet on Instagram, who confirmed they see it all the time and pointed me to this resource https://illuminateduniverse.org/2021/04/01/image-artifacts/. See the "Donuts, Ghosts, and Glints" section.
|
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
Joe Linington:
You have to find it in an overlapping image to confirm or overlay the 2 images and see if there is enough movement of the field to confirm it isn't an aberration. I didn't understand the entire thing. Maybe an example, if possible?
|
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
Optics artifact. Very common in HST WFC3 and ACS data. Use clone stamp and spot healing brush to remove.
|
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
Talking about weirds…. Posted this on Cloudy Nights a few months back and didn’t get a real response Imaging SH2-157, the Lobster Claw nebula I found this little guy in the unprocessed SHO preview ( some 17 hours integration so far, 3nm narrowband)What's up with these apparent "rays", most apparent in Ha? don't think I have ever seen anything like it, I don't think its an artifact, shows up un several images on the web...
 A Herbig Ae/Be Star at the green arrow, but i am interested in the tiny guy next to it, with the peculiar “radiating pattern“… thanks,Mike
|
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
Maybe a higher resolution image would give better data. What it is its redshift?
|
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
andrea tasselli:
Maybe a higher resolution image would give better data. What it is its redshift? If you klick the image on Astrobin (linked above) you’ll get the native resolution. redshift? Don’t think I can estimate that for a stellar object with data from my backyard rig😀
|
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
Looks like ghost reflections of a bright star from two optical surfaces. You can see a second one in the F814W image if you brighten it. Bit of digging shows that they're well aware of this, see section 6.5.3: https://hst-docs.stsci.edu/wfc3ihb/chapter-6-uvis-imaging-with-wfc3/6-5-uvis-spectral-elements#id-6.5UVISSpectralElements-6.5.3 |
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
Michael Gruenwald:
If you klick the image on Astrobin (linked above) you’ll get the native resolution.
redshift? Don’t think I can estimate that for a stellar object with data from my backyard rig😀 I mean actual higher resolution, not bigger picture. And as for the redshift and other info you might get I suggest you research around the object's location with tools such as Aladin, Simbad and such.
|
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
Looks like ghost reflections of a bright star from two optical surfaces. You can see a second one in the F814W image if you brighten it. Bit of digging shows that they're well aware of this, see section 6.5.3: https://hst-docs.stsci.edu/wfc3ihb/chapter-6-uvis-imaging-with-wfc3/6-5-uvis-spectral-elements#id-6.5UVISSpectralElements-6.5.3 Thanks, this was very informative.
|
You cannot like this item. Reason: "ANONYMOUS".
You cannot remove your like from this item.
Editing a post is only allowed within 24 hours after creating it.
You cannot Like this post because the topic is closed.
Copy the URL below to share a direct link to this post.
This post cannot be edited using the classic forums editor.
To edit this post, please enable the "New forums experience" in your settings.
