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Friday, 5 May 2023

2815) "The Neutron Stars", Austria: Third Coin in a Silver 20 Euro three-Coin Series titled "The Uncharted Universe," minted by the Austrian Mint, Vienna: Date of Coin issue: 10.05.2023:

2815) "The Neutron Stars", Austria: Third Coin in a Silver 20 Euro three-Coin Series    titled   "The Uncharted Universe," minted  by  the    Austrian Mint, Vienna: Date of Coin issue: 10.05.2023: 

The "Uncharted Universe Coin Series":

The "Uncharted Universe" Coin Series:





The Header/Banner showing The Milky Way, the Obverse and Reverse of the 20 Euro Silver Coin, and the Austrian Mint Logo ("MUNZE OSTERREICH"). It is titled "DAS UNCHARTED UNIVERSUM" ("The Uncharted Universe"). Also seen is the "S" shaped structure of the Coin.

Humans have been fascinated by the vastness of the universe and the more one learns about it the more fascinated one becomes. With the help of these coins and what one learns about the universe along the way, one will reach the final frontier, beyond which lie the unknown and the unexplored.

Consisting of three coins, the Silver 20 Euro "The Uncharted Universe Coin Series" takes us to the deepest depths of the universe and gives the beholder a fascinating glimpse of three physical-astronomical phenomena. With the help of these three coins, one reaches the final frontier, beyond which lie the unknown and the unexplored.

Together with experts, this Coin Series takes a close look at three physical-astronomical phenomena – "The Milky Way", "Black Holes" and "Neutron Stars". 

The “Unchartered Universe” series includes three pieces that have never existed before

This series allows the collector to travel into the depths of the Universe and observe three breathtaking astronomical phenomena up close:

- the first of which is the Milky Way (2021)

- the second piece, The Black Hole, takes one beyond the “event horizon” of this unique phenomenon (2022). 

- the Neutron Star, the third and final piece in the series, shows how a massive star, combined with gravitational collapse, becomes one of the densest stellar objects in the universe (2023).

In addition, a new series of five 20 Euro Silver Coins of this type will be issued at a rate of one coin per year, until 2028. These coins will be interpretations of five other astronomical phenomena.

The "Neutron Stars" - the Third Coin in the Series:

The Reverse and Obverse of the Neutron Star Coin placed side-by-side.

The Neutron Star Coin, the third and final coin in "The Uncharted Universe Coin Series", shows how a massive star, combined with gravitational collapse, becomes one of the densest stellar objects in the universe (2023).

In the centre of The Neutron Star coin, a hemisphere curves inwards on one side and outwards on the other. Neutron stars are still something of a mystery, but this little masterpiece makes them a lot more tangible.

Among the densest stellar objects in the universe, neutron stars are heavier than the Sun itself. A superb representation of this unique galactic phenomenon, this little beauty weighs considerably less.

Featuring a semi-sphere in its centre that curves inwards on one side and outwards on the other, the last coin in The Uncharted Universe series is designed to be a simplified representation of that unique galactic phenomenon – the Neutron Star

There are thought to be up to one billion Neutron Stars in the Milky Way. 

This figure is obtained by estimating the number of stars that have undergone a supernova explosion, a spectacular explosion of a massive star. 

Combined with gravitational collapse, this creates a compact and super-dense object known as a neutron star. 

After black holes, neutron stars are the densest stellar objects in the universe

Even denser than atomic nuclei, which is a good way to think of them, neutron stars are heavier than the Sun itself - a teaspoonful of neutron star would weigh as much as 1,000 Cheops pyramids

Neutron stars can rotate at very high speed – up to 700 revolutions per second – and have a magnetic field 12 to 15 orders of magnitude stronger than that of the Earth, which is a thousand to a million times stronger than the strongest man-made magnetic fields ever produced.

The Coin:

From something very small – a coin – one becomes acquainted with the infinitely large and even reach out to galaxies that no human has ever seen before.

This Coin illustrates the "Neutron Star" phenomenon:

On the Obverse of the 20 Euro Silver Coin, the combination of the convex and the concave surfaces  results in an S-shaped Silver surface upon which the "NEUTRON STAR" is depicted.

The peripheral inscriptions are - "REPUBLIK OSTERREICH" ("Republic of Austria"), "20 EURO" (on the upperand lower peripheries respectively). The Year of issue is inscribed as "2022".

On this face - a cone rises from the flat silver surface, representing the curvature of space-time. 

The words "Crust" ("KRUSTE") and "Core" ("KERN") are marked in German on this face. 

"Crab Pulsar ("KREBSPULSAR") is the name of a Neutron Star that was created from a supernova in the year 1054, while "1,4 M" refers to the Neutron Star’s solar mass, "30rps" to its rotation speed per second and "r~10km" to its radius.

The Reverse of the 20 Euro Silver Coin features the Neutron Star appears through a coloured imprint and a stylised representation of its magnetic field.

The “Uncharted Universe” Collector Case:

A specially designed Collector Case is available to house and present the three-coin set. The substance of the universe is brought to the point and stored in a stylish cassette. The lid is attached with magnets and can be removed, the insert can be opened, so the coins can be viewed from both sides.

The inlay can be set up in such a way that the case can be easily turned into a mini-exhibit of the universe, in which the phenomena on the coins can be explored from both sides.

The specifications of this Coin are:

Country of issue: Republic of Austria; Coin Series Name: "The Uncharted Universe"; Coin Theme: "The Neutron Star"; Date/Year: 10.05.2023; Denomination/Face Value€20 (20 Euros); Metal Composition: .925 Fineness Silver (Ag); Fine Weight: 20.74 grams or 2/3 Oz or 0.67 Oz; Total Weight: 22.42 grams; Diameter/Size: 34.00 mm; Coin Quality: Proof with Applied Colour; Mintage: 2,500 pieces; Special Technique: S shaped Silver surface; Mint: Mint of Austria, Vienna; Mintage: 30,000 pieces; Presentation Box/Case: Yes; Edge: Plain; Certificate of Authenticity (COA): Yes; Coin Designer: Mag. Helmut Andexlinger.

- Each coin is specially encapsulated to accommodate its unique shape and surface and is presented in an attractive case with a numbered certificate of authenticity. 

Packaging comes in a Case complete with a numbered Certificate of Authenticity (COA) and protective slipcase.

A Video presentation of the Neutron Star Coin





Links to posts on Austria and Germany on this Blog:

Posts on Grimm's Fairy Tales on this Blog:




More posts on insect world on this blog:

i) Beetles: A set of five Post Cards issued by Chennai Postal Circle of India Post in 2017

ii) Lady Bug Beetles: A set of four Commemorative stamps brought out by India Post on 23.02.2017

 Posts on "Wonderful World of Insects":

i) "Diverse Habitats & Insects that live in them", Federal Republc of Germany (Bundesrepublik Deutschland): "Wondeful World of Insects Coin Series": (Wonderwelt Insecten"): First Coin in the Series issued by the Stuttgart Mint: Date/Year of Coin issue: 20.10.2022

ii) "Siebenpunkt-mariekafer" (or "Seven-spotted ladybird"), Federal Republic of Germany (Bundesrepublik Deutschland): "Wonderful World of Insects Coin Series" (WONDERWELT INSECTEN"): Second 5 Euro Colour Coin in the Series: Coin issued by the Berlin Mint (Mint Mark "A"): Date/Year of Coin issue: 09.03.2023

The Language of Flowers Coin Series:




Links: Crypto-Currency Stamps & Coin Posts:

1) Croatian Crypto Stamp - 2, Croatia: A 50 HRK stamp (a combination of the analog and the digital) issued by "Hrvatska Posta" (Croatian Post) in coordination with the Croatian Blockchain community gathered around the Blockchain and Cryptocurrency Association: Date of Stamp issue: 16.12.2020

2) Did You Know Series (49): Dogecoin (DOGE), Blockchain Mint, Singapore: Blockchain Mint has issued Silver DOGE Medals in three variants - i) Silver Dogecoin Cryptocurrency Medal Gem BU, ii) Silver Dogecoin Cryptocurrency Medal Proof-Like in Blister Pak, iii) Dogecoin Cryptocurrency Commemorative Medal Antiqued in Blister Pak: Date of Medal release/shipping: 05/2021

3) Did You Know Series (50): A Guest Post by Avery Wright: "Is Making the Crypto Space Legally Complaint Paving the Road to Mass (Blockchain) Adoption?" - A perspective:

4) Gibraltar Cryptocurrency Stamp: Stamp value 4 Pounds: Date of Stamp issue: 15.05.2021: (Pre-orderd accepted from 19.04.2021):

5) Bitcoin Backed Banknotes are being envisaged by "Noteworthy" which are aimed at generating user confidence in the Cryptocurrency

6) "Blockchain Technology", Principality of Liechtenstein: A Crypto Stamp of CHF 5.20 titled "Perspective" issued by Liechtensteinische Post: Date of Stamp issue: 06.09.2021

7) "Bitcoin Logo", Niue Island: A $2 (Two Dollars) Silver Brilliant Uncirculated (BU) Coin features this iconic Logo of the well known Cryptocurrency: Year of Coin issue: 2022

8) Crypto-stamp - Rimec Nevera, Croatia: Htvatska posta (Croatian Post) has issued a Crypto-stamp Souvenir Sheet (a combination of the analog and the digital) of One Stamp of HRK50.00 on a PVC background: Date of Crypto-stamp issue: 09.09.2021

9) "UN Crypto Stamps", United Nations: "New Technologies for the United Nations Stamp Series": United Nations Postal Administration brought out its first time ever UN Crypto Stamps, which run on Etherium Blockchain: Date of Stamps issue: 24.11.2020

10) "Equality", Liechtenstein: A "BlockChain Stamp Series: A Stamp 4.1 "Equality issued by Liechtensteinische Post (Philately Liechtenstein) with a face value of CHF 9.00): Date of Stamp issue: 09.09.2022

11) Croatian Crypto Stamp, Croatia: A 50 HRK Stamp (a combination of the analog and the digital) issued by "Hrvatska Posta (Croatian Post) in coordination with the Croatian Blockchain and Cryptocurrency Association: Date of Crypto Stamp issue: 09.09.2020

12) Crypto Stamp 4.0 - Grab the Bull by the Horns - set, Austria: Osterreichische Post AG (Austrian Post) has released a Joint-issue between two countries - Austria and Netherlands, featuring the new technology "Augmented Reality", with a new motif of the Bull: Date of Crypto Stamp issue: 28.10.2022

13) "UN Crypto Stamps", United Nations: "New Technologies for the United Nations Stamp Series": Series II of United Nations Crypto Stamps issued by the United Nations Postal Administration (UNPA) which run on Blockchain Technolgy: Date of Stamps issue:18.11.2022

14) 2022 NL Crypto Stamp - Duo Set Crypto The Netherlands (NL) + Oostenrijk (Austria) - Collectibles: Date of Joint Crypto Stamp issue: 22.09.2022

15) Nikola Tesla's inventions as motifs feature on Croatia's Fourth Crypto Stamp of 50 HRK issued by Hrvatska Posta (Croatian Post): Date of Crypto Stamp issue: 20.12.2022


Links to posts on Federal Republic of Germany issues and other posts on this blog:












In the Service of Society Coin Series":


Other Links:






World War I and II and East Germany Coins and Banknotes:



Posts on the Tank Museum, Ahmednagar, Maharashtra, India and similar posts on this Blog:



"Confrontation" Coin Series:




Links to posts on Austrian Mint Coin issues on this blog:




Magic of Gold 100 Euros Gold Coin Series:









"Eyes of the Continents" Coin Series:


























New Year Lucky Coin Releases:









Austria's Unsung Heroines Coin Series:


The Language of Flowers Coin Series:


The "Uncharted Universe" Coin Series:


For posts on COTY (Coin of the Year) winners since 2015 in a competition held by Krause Publications of Germany, please visit the following links:




Related Links on this Blog:

1) 200 Years of the Discovery of Antarctica, Estonia: A 2 Euro Commemorative Coin dedicated the Bicentenary of the Discovery of Antarctica by Admiral Fabian Gottlieb Benjamin von Bellingshausen on board the "Vostok": Coin issue date: 01/2020

2) Solomon Islands: 250th Anniversary of Captain James Cook's first Pacific "Voyage of Discovery" and charting of New Zealand and Australia's East Coast: Date of Coin issue: 2020














4 comments:

  1. Santosh Khanna has commented:
    "A VERY interesting and informative post. Thanks for sharing."

    ReplyDelete
  2. Thank you so much Khanna sahab.

    ReplyDelete
  3. Rajan Trikha has commented:
    "A very informative post on Neutron Stars".

    ReplyDelete