Melina Thévenot🏳️‍⚧️

Thank you for the updates. 👍

Now that the news are out...

Rivkin's Feb 2026 JWST observations of asteroid 2024 YR4 shows that it'll pass 21,938 ±2,320 km from the Moon (according to JPL SBDB), while Deen's precoveries from 2016 found that YR4 will pass of 22,001 ±49 km from the Moon.

Both independent results are spot on! 🔭☄️

There is also a Hubble F606W image from program 13327.
I tried to combine them, but I had to use the Hubble image as green.

NIRCam F070W (blue), ACS F606W (green), NIRCam F444W (red)
archive.stsci.edu/proposal_sea...

🐑🐑💤

An orange jet consisting out of clumps coming from the nucleus. The jet has a bent on it. The host galaxy is blue and is an ongoing merger of two galxies. A small blue galaxy is below the main galaxy pair. Other red galaxies and a blue star are also in the image.

Merging pair of galaxies with a jet coming out from one galaxy.

3C 346 with #JWST 🔭 NIRCam (F070W, F444W).

wikimedia: commons.wikimedia.org/wiki/File:3C...

#galaxy #astronomy

I am not 100% sure. Protoplanetary disks require a dark dust lane in the middle. Your candidate looks like is has emission in the middle.

It could also be a merger of two galaxies with the point-like source at the top being the nucleus of one galaxy.

Nice find.
RA 97.957739 Dec 4.8562656
not in SIMBAD

SJ0615-5746 | NIRCAM #JWST

From what I can see, I think there are 5 images of the galaxy.

Filters: f150w, f210m, f300m & f444w.

www.stsci.edu/jwst-program...

I think the tail is something similar to this: A disk around a star being blasted by photons of a massive O-type star. ui.adsabs.harvard.edu/abs/2006ApJ....

On SIMBAD it has only one reference. It was probably added to SIMBAD there because it was in an X-ray catalog. simbad.cds.unistra.fr/simbad/sim-b...

WTF are the first three author names: Wang, Townsley, Feigelson. Funny coincidence.

The star with a tail is in SIMBAD as
[WTF2008] Secondary 359

One bright star in the middle. Towards the lower left is a dim star with a long and thin orange-red tail. Orange nebulosity is also seen towards the right.

There is a #star in NGC 2244 with a long red tail pointing towards HD 46150 (O-type star).

Reminds me of dusty proplyds.

#JWST NIRCam (F300M, F360M, F444W)
program: www.stsci.edu/jwst-program...
PI: Mark McCaughrean

Stars. Just zoom out. It is so easy to find three dots in a line.
www.legacysurvey.org/viewer?ra=21...

Radio image of galaxy PKS 0521-36, in pseudocolor display. There is a bright and sharp core, jet to the upper right with a bright knot, and bright spot opposite the jet.

Ooh! I remember that one! I observed it with the VLA 40 years ago next month. Here it is at 2 cm wavelength - core, jet, and radio lobe on the opposite side. Probably the next-brightest optical/near-IR jet in a radio galaxy after M87.

Hubble image in gray showing a bent jet.

Next jet target (3C 346.0) of program 9226 will be released in a few days. Looking at WISE image: I am hoping that the JWST F444W image won't have a bright AGN.

It already looks interesting in this low-quality Hubble image:
commons.wikimedia.org/wiki/File:3C...

A red galaxy behind a blue galaxy. Both spiral galaxies.

Also a small overlap of two galaxies at
RA 80.76793 Dec -36.446311

A bright source with long stretching diffraction spikes in the middle. A jet comes out towards the lower right. Parts of a possible counter-jet are seen towards the upper left. Other galaxies are also in the image.

Another #galaxy with a jet. The center of the galaxy is bright because of the active galactic nucleus (in other words the active black hole and its environment).

ESO 362-21 (target name: 0521-365) with #JWST NIRCam (F444W) from this program: www.stsci.edu/jwst-program...

I was born in an Iranian prison. My parents were held in their jails. My uncles lie in their mass graves. Nothing you can tell me about the crimes of the Iranian regime that I haven't lived in blood and bone. That doesn't mean I want my people bombed, maimed, killed, their homes in ruins. If your vision of liberation comes only through the destruction of innocent lives, then it's not freedom you're after. Sahar Delijani, Iranian author

I am pro Iranian people. I stand with them against their own government’s repression AND against the imperial violence in the form of bombs dropped from the sky from Israel & the US who have already killed hundreds.

I support neither imperialism or dictatorship.

Sahar Delijani said it best:

White dwarfs usually have either hydrogen or helium dominated atmospheres.

Image by the DESI imaging legacy surveys, showing the white dwarf in the middle.

I did fall down a rabbit hole and expanded the wiki article of LP 40-365. en.wikipedia.org/wiki/LP_40-365

This "white dwarf" (if you can call it that) is likely the surviving remnant of a type Iax supernova.

Strange atmosphere dominated by neon (60% mass) and oxygen (30%) with some magnesium (8%).

A white ring surrounded by a small red nebula and two red rings. Stars and faint diffuse reddish nebulae are also seen.

Partially released today. Observation of the remnant of the #supernova SN 1987A in the Large Magellanic Cloud.

#Hubble WFC3/UVIS (F438W, F606W, F657N)
program: archive.stsci.edu/proposal_sea...

Observation start dates: 2025-08-30/31

This is probably the reason why the jet is bent on the tip. The bent shows the re-orientation that happened in the past.

Information from Hodges-Kluck et al. 2010 ui.adsabs.harvard.edu/abs/2010ApJ....

Apparently the radio jet is an x-shaped jet. It is tought that this x-shape comes from a re-orientation of the black hole spin axis (and therefore jet axis). This is caused by the merger of two galaxies.

Ich glaube hier handelt es sich eher um ein schwarzes Loch welches die Orientierung des Jets geändert hat. Der Grund dafür war das verschmelzen von zwei Galaxien.

So ungefähr erklärt es diese Veröffentlichung: ui.adsabs.harvard.edu/abs/2010ApJ....

Did take a while to find it. RA 241.5437 Dec 0.018459125

It is not known. I think this could be because it is invisible at shorter wavelengths (NIRCam F070W filter, about 700nm) and Hubble used F606W filter (about 606 nm).

But I think it could be a lens.

coordinates: RA 241.5552 Dec -0.010930021

Found out that it is a known grade C lens, disovered by Hubble Asteroid Hunters (project at @zooniverse.bsky.social )
vizier.cds.unistra.fr/viz-bin/Vizi...

A possible gravitational lens. Galaxy is orange-yellow and lens is blue with two arcs on opposite sides.

Possible lens (?) in the 4C 00.58 images.
www.stsci.edu/jwst-program...

Did run the F444W image to the denoise software. So here is an improved version on wikimedia:
commons.wikimedia.org/wiki/File:4C...

Same image with the jet being orange and the galaxy being blue-brown.

I also tried to create a colored version, but the F070W image is so noisy. I don't like it.

NIRCam F070W and F444W

A jet coming out of a galaxy

Radio #galaxy (4C 00.58) with a black hole in the center spewing out an astrophysical jet of material. #JWST 🔭 NIRCam (F444W)

program: www.stsci.edu/jwst-program...

PI is Eileen Meyer @eileen-meyer-astro.bsky.social

#blackhole #jet #astronomy