Kosmo Klub

Kosmo Klub

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2022-12-21 12:31:10

Kosmo Klub

kosmoklub@libera.site

Hourly Cosmos wrote the following post Wed, 21 Dec 2022 01:00:17 +0100

The small Southern constellation of Corona Australis (the Southern Crown) hosts an impressive display of dust clouds and reflection nebulae centered around the star R Coronae Australis. This area is known as the Corona Australis Molecular Complex and at a <br />distance of 430 light years it is one of the closest star-forming regions to us. The image here frames the most colourful part of the complex, dominated by two large blue reflection nebulae. The brightest of the two is NGC6726-7 in the upper half of the <br />field, which is illuminated by two separate young blue stars HD176386 and TY CrA. In the lower half reflection nebula IC4812 is lit by a brilliant close pair of stars; HD176269 and HD176270. To the lower left of NGC6726-7 lies the most intricate and <br />colourful part of the complex, surrounding R Corona Australis itself. Here several bright arcs, loops and intriguing structures can be seen. These are shaped by violent outbursts from young protostars still embedded in the nebula. Also visible are many <br />small bright red Herbig-Haro objects; the result of plasma jets ejected from young protostars which collide with the surrounding gas and dust and cause the glowing emission. The condensation of dark molecular clouds around R Coronae Australis makes the <br />star heavily obscured from our view. The star itself is a very young B5 type, still migrating towards the main sequence on the H-R diagram. It is some 2 to 10 times heavier than our Sun and about 40 times more luminous. In the l...

NGC6726 and HH 100 in Corona Australis - From Rolf Wahl Olsen - https://flic.kr/p/E94nJV

2022-12-20 20:17:00

Kosmo Klub

kosmoklub@libera.site

Astronomy Picture of the Day wrote the following post Tue, 20 Dec 2022 08:28:04 +0100

The featured image shows a nebula in blue and red that looks like a helmet.

Thor's Helmet

Image Credit & Copyright: Hannah Rochford

https://apod.nasa.gov/apod/ap221220.html #APOD

2022-12-20 18:53:26

Kosmo Klub

kosmoklub@libera.site

#kosmoschuzky #planetariumpraha #planetum #kosmo #kosmocz #kosmoklub

#^Pozvánka na prosincovou Kosmoschůzku 2022 | klub.kosmo.cz

Místo konání: Planetárium Praha Datum akce: 21. 12. 2022 Začátek akce: 17:30 Předpokládaný konec akce: 20:00 Program Kde získat více informací? Přidejte se k události také na Facebooku! PřílohaVelikost kosmoschuzka202212.png1.72...

2022-12-20 05:48:47

Kosmo Klub

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Aerojet Rocketdyne nakonec kupuje L3Harris

#^L3Harris to acquire Aerojet Rocketdyne for $4.7 billion - SpaceNews

L3Harris Technologies on Dec. 18 announced an agreement to acquire Aerojet Rocketdyne for $4.7 billion.

2022-12-20 05:15:21

Kosmo Klub

kosmoklub@libera.site

Hourly Cosmos wrote the following post Tue, 20 Dec 2022 02:00:18 +0100

(English below) Imagen de la Nebulosa del Cuarto Creciente (NGC 6888, Crescent Nebula) obtenida por el autor combinado datos en los filtros B (azul), [OIII] (verde) y Halpha (rojo) usando la cámara WFC (Wide-Field Camera) del telescopio 2.5m INT (Isaac <br />Newton Telescope) en el Observatorio del Roque de los Muchachos (isla de La Palma, España). Se trata de una nebulosa en torno a una estrella Wolf-Rayet, denominada WR 136 (la brillante en el centro de la imagen), cuya edad es inferior a 5 millones de <br />años. Los fuertes vientos estelares de esta estrella masiva y caliente configuran esta estructura caótica y altamente inhomogénea, con filamentos y grumos de materia alrededor de la estrella central. El gas brilla (está ionizado) como consecuencia de <br />la fuerte radiación ultravioleta que recibe de la estrella Wolf-Rayet. El tamaño de la imagen es, aproximadamente, unos 22 x 22 minutos de arco, sólo un poco más pequeña que el tamaño de la luna llena (30 x 30 minutos de arco). Crédito imagen: <br />Ángel R. López-Sánchez. Image of the Crescent Nebula (NGC 6888) obtained by the author combining data using the broad-band optical B filter (blue) and the narrow-band optical filters [O III] (green) and Hα (red) obtained using the Wide Field Camera <br />(WFC) attached at the 2.5m Isaac Newton Telescope (INT) at the Roque de los Muchachos Observatory (La Palma, Spain). Located in the northern constellation of Gygnus, The Swan, it lies at around 5000 light years from us. The Crescent Nebula ...

Nebulosa del Cuarto Creciente / Crescent Nebula - From Angel R. Lopez Sanchez - https://flic.kr/p/3hFjH9

2022-12-19 22:53:55

Kosmo Klub

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Kepler-1658 b se zřejmě za 3M let rozpadne a bude asimilován hvězdou Kepler-1658.

#^Discovery Alert: For This Familiar Planet, a Death Spiral

A previously discovered "hot Jupiter" appears to be spiraling into its star, new data shows.

2022-12-19 15:01:00

Kosmo Klub

kosmoklub@libera.site

Astronomy Picture of the Day wrote the following post Mon, 19 Dec 2022 08:28:05 +0100

The featured image shows a glowing star forming region rich in glowing gas and dark dust. Two dusty pillars on the right resemble tadpoles.

The Tadpole Nebula in Gas and Dust

Image Credit & Copyright: Craig Stocks (Utah Desert Remote Observatories)

https://apod.nasa.gov/apod/ap221219.html #APOD