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Astronomers discover two TNO-like bodies in the asteroid belt

The pair, named 203 Pompeja and 269 Justitia, bear a resemblance to objects located in the outer solar system.
Asteroid Belt

They're red, they're reasonably big, and they have no business being in the main asteroid belt, but their discovery confirms the complex conditions in place when the solar system was still forming.

New research published in the The Astrophysical Journal Letters details the discovery of two extremely red main-belt asteroids. Named 203 Pompeja and 269 Justitia, the asteroids have a redder spectral signature than any other asteroid in the main belt, that highly populated band of asteroids situated between the orbits of Mars and Jupiter. The new paper was led by Japan Aerospace Exploration Agency (JAXA) astronomer Sunao Hasegawa.

Importantly, these red asteroids resemble trans-Neptunian objects, that is, objects located farther away than Neptune, the most distant planet from the Sun (with no disrespect to dwarf planet Pluto). This could mean that 203 Pompeja and 269 Justitia formed way out there in the Kuiper Belt and then drifted inward when the solar system was still young. If confirmed, the new finding shows how chaotic the conditions were back then and that materials from different parts of the solar system would sometimes mix together.

The purpose of the study was to document the distribution and composition of large asteroids in the main belt. Large asteroids, especially those larger than 60 miles (100 km) in width, are likely survivors of the solar system's early days. By studying these objects, the scientists were hoping to catch a glimpse of what the conditions were like some 4 billion years ago.

Fireball 2

Meteor fireball lights up sky over Izmir, Turkey

fireball
According to the National Aeronautics and Space Administration, several thousand meteors of fireball magnitude enter the Earth's atmosphere every day. Most of them are unnoticeable, however, as they appear in uninhabitable regions or during the day.

The sight of a meteor lighting up the sky is usually described with the word "mesmerizing" or "incredible". Yet, the celestial body that flew over the Turkish city of Izmir at around 2 a.m. local time did not evoke positive feelings. In fact, it prompted a doomsday scare among residents.


Fireball 2

Meteor fireball seen over Michigan, Ontario and Wisconsin

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We received 21 reports about a fireball seen over MI, Ontario and WI on Monday, July 26th 2021 around 05:26 UT.

For this event, we received 2 videos.



Fireball 4

Meteor fireball over the coast of Santa Catarina, Brazil

fireball

The meteor occurred over the coast of Santa Catarina around 2:05 am this Wednesday (28/07). The journey lasted just under 3 seconds and the glare was quite intense. The record was made by the meteor monitoring station in Monte Castelo-SC. Other cameras from the BRAMON network also recorded the event. Did you see something like that?


(Translated by Google)

Fireball 4

Meteor fireball lights up the sky over Pilbara, Western Australia

Perth Observatory’s Matt Woods confirmed it
© WA Police
Perth Observatory’s Matt Woods confirmed it was a meteor known as a bolide — French for missile. Appearing as a fireball in the sky, it was likely a space rock the size of a cricket ball or slightly larger plunging towards earth that burned up high in Earth’s atmosphere, before it could hit.
Two of Roebourne's finest have been left gobsmacked after their night on the beat was interrupted by a meteor.

Police bodycam vision captured the fireball lighting up the Pilbara sky, shocking the officers who were talking with a local at the time.

"Did you see that, did you see that?" says one.

"Oh wow! That was a big flash I thought that was a torch. Make a wish, quick, make a wish," says a female officer who has her back turned when the meteor first lights up the sky.


Fireball

North Texas residents observe bright meteor fireball, boom reported

Texas meteor fireball
© YouTube/Wood County Now (screen capture)
North Texas residents took to social media Sunday night to discuss and share videos of a flash streaking across the sky.

Many people across Dallas-Fort Worth noted they saw a brilliant fireball about 8:57 p.m. Sunday. In fact, it was seen as far south as Austin, as far north as Oklahoma and as far east as Louisiana.

It streaked from the southwest to the northeast and exploded, evidently over Northeast Texas. One resident in Bonham said it "shook his house."


Fireball 3

Bright meteor fireball lights up night sky over Norway

Norway meteor fireball
© YouTube/Guardian News (screen capture)
An 'unusually large' meteor briefly lit up southern Norway on Sunday, as it sped at up to 20km per second across the morning sky. Reports of sightings started at around 1am, with sightings of the phenomenon recorded as far north as Trondheim. There were no immediate reports of injuries or damage


Fireball 2

Meteor fireball over the south of Spain (July 24)

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On 24 July 2021, at about 0:00 h local time, a slow-moving fireball was spotted over Spain. This bolide was generated by a rock from an asteroid that hit the atmosphere at about 75,000 km/h. The fireball overflew the provinces of Ciudad Real (region of Castilla-La Mancha) and Jaén (Andalusia). It began over the south of Ciudad Real at an altitude of about 85 km, and ended over the province of Jaén at a height of around 34 km.

This bright meteor was recorded in the framework of the SMART project, operated by the Southwestern Europe Meteor Network (SWEMN), from the meteor-observing stations located at Sevilla, La Hita (Toledo), La Sagra (Granada), Calar Alto (Almería), Cerro Negro (Sevilla), Sierra Nevada (Granada), and Madrid (Jaime Izquierdo, Complutense University of Madrid). The event has been analyzed by the principal investigator of the SMART project: Dr. Jose M. Madiedo, from the Institute of Astrophysics of Andalusia (IAA-CSIC).


Comet 2

New Comet C/2021 N3 (PANSTARRS)

CBET 5003 & MPEC 2021-O39, issued on 2021, July 22, announce the discovery of a new comet (magnitude ~20.5) on CCD images taken on July 13.5 UT with the Pan-STARRS1 1.8-m Ritchey-Chretien reflector at Haleakala (numerous pre-discovery observations going back an additional month were later identified). The new comet has been designated C/2021 N3 (PANSTARRS).

Stacking of 16 unfiltered exposures, 180 seconds each, obtained remotely on 2021, July 14.3 from X02 (Telescope Live, Chile) through a 0.61-m f/6.5 astrograph + CCD, shows that this object is a comet with a compact coma about 9" arcsecond in diameter elongated toward PA 230 (Observers E. Guido, M. Rocchetto, E. Bryssinck, M. Fulle, G. Milani, C. Nassef, G. Savini, A. Valvasori).

Our confirmation image (click on the images for a bigger version; made with TYCHO software by D. Parrott)

Comet C/2021 N3 Panstarrs
© Remanzacco Blogspot

Comet 2

New Comet P/2021 N2 (Fuls)

CBET 5000 & MPEC 2021-N137, issued on 2021, July 15, announce the discovery of a new comet (magnitude ~18.3) on CCD images taken on July 09.4 UT with the Catalina Sky Survey's 0.68-m Schmidt reflector (pre-discovery Catalina observations from June 27 were identified later). The new comet has been designated P/2021 N2 (Fuls).

Stacking of 28 unfiltered exposures, 60 seconds each, obtained remotely on 2021, July 10.1 from Z08 (Telescope Live, Oria) through a 0.7 m f/8 Ritchey Chretien + CCD, shows that this object is a comet with a compact coma about 8" arcsec in diameter and a tail 10" long in PA 250 (Observers E. Guido, M. Rocchetto, E. Bryssinck, M. Fulle, G. Milani, C. Nassef, G. Savini, A. Valvasori).

Our confirmation image (click on the images for a bigger version; made with TYCHO software by D. Parrott)
Comet P/2021 N2 (Fuls)
© Remanzacco Blogspot
Comet P/2021 N2 (Fuls)
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