Following the @rubinobservatory.org discovery announcement for #2026ED138, Sam Deen found two potential images of the object from 1954: groups.io/g/mpml/topic....
It was simply not recognized on the old Palomar plates.
It was simply not recognized on the old Palomar plates.
groups.io
October 28, 2026 at 2:17 PM
Following the @rubinobservatory.org discovery announcement for #2026ED138, Sam Deen found two potential images of the object from 1954: groups.io/g/mpml/topic....
It was simply not recognized on the old Palomar plates.
It was simply not recognized on the old Palomar plates.
Discussion in this thread suggests that #2026ED138 is likely in a 7:12 resonance, which is the same as Haumea's. That doesn't prove it's a Haumea family member, but if it is, its albedo could be high for a TNO, and its diameter on the small side of estimates.
Following the @rubinobservatory.org discovery announcement for #2026ED138, Sam Deen found two potential images of the object from 1954: groups.io/g/mpml/topic....
It was simply not recognized on the old Palomar plates.
It was simply not recognized on the old Palomar plates.
groups.io
October 28, 2026 at 3:42 PM
Discussion in this thread suggests that #2026ED138 is likely in a 7:12 resonance, which is the same as Haumea's. That doesn't prove it's a Haumea family member, but if it is, its albedo could be high for a TNO, and its diameter on the small side of estimates.
There is also a report of a potential stellar occultation by #2026ED138 visible "over western South America" on 2026 October 31: groups.io/g/mpml/topic....
Does anyone have a map for that, in case anyone should want to try to chase the shadow?
Does anyone have a map for that, in case anyone should want to try to chase the shadow?
groups.io
October 28, 2026 at 5:10 PM
There is also a report of a potential stellar occultation by #2026ED138 visible "over western South America" on 2026 October 31: groups.io/g/mpml/topic....
Does anyone have a map for that, in case anyone should want to try to chase the shadow?
Does anyone have a map for that, in case anyone should want to try to chase the shadow?
Move over, Pluto: The @rubinobservatory.org turns up a new prospect for dwarf planethood, and the telescope is virtually certain to spot still more candidates in the decade ahead. www.geekwire.com/2026/a-new-p... #Space #2026ED138 #DwarfPlanets #DPS
A new pal for Pluto? Rubin Observatory finds its first dwarf planet candidate
2026 ED138 joins a tribe of potential dwarf planets on the edge of our solar system — and Rubin's astronomers are likely to find more.
www.geekwire.com
October 28, 2026 at 3:46 AM
Move over, Pluto: The @rubinobservatory.org turns up a new prospect for dwarf planethood, and the telescope is virtually certain to spot still more candidates in the decade ahead. www.geekwire.com/2026/a-new-p... #Space #2026ED138 #DwarfPlanets #DPS
Ancora manca la conferma definitiva, dunque per ora è solo un “candidato”, ma il remoto corpo celeste #2026ED138 pare avere tutte le carte in regola - a partire dalle dimensioni, attorno ai mille km - per essere un pianeta nano. Il sesto mai scoperto. Il primo per il Rubin Observatory.
Vera Rubin e il sesto nano: la scoperta di 2026 ED138
YouTube video by MEDIAINAF TV
youtu.be
October 28, 2026 at 7:21 PM
Ancora manca la conferma definitiva, dunque per ora è solo un “candidato”, ma il remoto corpo celeste #2026ED138 pare avere tutte le carte in regola - a partire dalle dimensioni, attorno ai mille km - per essere un pianeta nano. Il sesto mai scoperto. Il primo per il Rubin Observatory.
The Rubin Observatory Finds Its First Dwarf Planet Candidate #Science #Space #Exoplanets #rubinobservatory #2026ed138 #dwarfplanet #solarsystem #legacyproject
The Rubin Observatory Finds Its First Dwarf Planet Candidate
The Vera Rubin Observatory found a distant Solar System object before its decade-long Legacy Survey of Space and Time even got started. The object is a dwarf planet candidate named 2026 ED138, and if...
purescience.news
October 28, 2026 at 6:33 PM
The Rubin Observatory Finds Its First Dwarf Planet Candidate #Science #Space #Exoplanets #rubinobservatory #2026ed138 #dwarfplanet #solarsystem #legacyproject
#VeraRubin telescope team discovers new dwarf planet candidate #2026ED138 100 AU from 🌞 If confirmed this would be only the sixth recognized dwarf planet.
New Dwarf Planet Hiding in Our Solar System? | NOVA | PBS
YouTube video by NOVA PBS Official
youtube.com
October 28, 2026 at 12:21 AM
#VeraRubin telescope team discovers new dwarf planet candidate #2026ED138 100 AU from 🌞 If confirmed this would be only the sixth recognized dwarf planet.
A new pal for Pluto? Rubin Observatory finds its first dwarf planet candidate #Technology #EmergingTechnologies #Other #plutodog #dwarfplanet #rubinobservatory #2026ed138 #solarsystem
A new pal for Pluto? Rubin Observatory finds its first dwarf planet candidate
A visualization shows the orbital path of the dwarf planet candidate 2026 ED138 in relation to the orbits of the solar system’s larger planets. Click on the image for a larger version. (Credit:...
puretech.news
October 28, 2026 at 6:32 AM
A new pal for Pluto? Rubin Observatory finds its first dwarf planet candidate #Technology #EmergingTechnologies #Other #plutodog #dwarfplanet #rubinobservatory #2026ed138 #solarsystem
El Observatorio Vera C. Rubin, ubicado en Chile, ha identificado un nuevo y prometedor candidato a planeta enano en los confines del sistema solar. Bautizado provisionalmente como 2026 ED138, este... #planeta #sistemasolar #2026ED138 #rubin
Más info en 👇
mysteryplanet.com.ar/site/descubr...
Más info en 👇
mysteryplanet.com.ar/site/descubr...
Descubren un posible nuevo planeta enano más allá de Plutón: podría ser uno de los más grandes del sistema solar
El Observatorio Vera C. Rubin, ubicado en Chile, ha identificado un nuevo y prometedor candidato a planeta enano en los confines del sistema solar. Bautizado provisionalmente como 2026 ED138, este cue...
mysteryplanet.com.ar
October 28, 2026 at 3:23 AM
El Observatorio Vera C. Rubin, ubicado en Chile, ha identificado un nuevo y prometedor candidato a planeta enano en los confines del sistema solar. Bautizado provisionalmente como 2026 ED138, este... #planeta #sistemasolar #2026ED138 #rubin
Más info en 👇
mysteryplanet.com.ar/site/descubr...
Más info en 👇
mysteryplanet.com.ar/site/descubr...
Potential new dwarf planet!:
2026 ED138's orbit is tilted by about 25 degrees relative to the plane of the solar system, and is currently about 4.3 billion miles from the Sun, or about 46 times the distance from the Sun to Earth. #2026ED138 #dwarfplanet
www.nsf.gov/news/new-dwa...
2026 ED138's orbit is tilted by about 25 degrees relative to the plane of the solar system, and is currently about 4.3 billion miles from the Sun, or about 46 times the distance from the Sun to Earth. #2026ED138 #dwarfplanet
www.nsf.gov/news/new-dwa...
New dwarf planet candidate discovered by NSF–DOE Rubin Observatory
NSF–DOE Vera C. Rubin Observatory has found a large object that scientists have identified as a possible dwarf planet. A preliminary data analysis shows that the object is orbiting in the outer…
www.nsf.gov
October 28, 2026 at 8:31 PM
Potential new dwarf planet!:
2026 ED138's orbit is tilted by about 25 degrees relative to the plane of the solar system, and is currently about 4.3 billion miles from the Sun, or about 46 times the distance from the Sun to Earth. #2026ED138 #dwarfplanet
www.nsf.gov/news/new-dwa...
2026 ED138's orbit is tilted by about 25 degrees relative to the plane of the solar system, and is currently about 4.3 billion miles from the Sun, or about 46 times the distance from the Sun to Earth. #2026ED138 #dwarfplanet
www.nsf.gov/news/new-dwa...