Castor A (α Geminorum) is a white A-type dwarf star (A1V) in the constellation of Twins.
Castor can be found high up in the northern hemisphere. Together with his twin half-brother Castor B (α Geminorum) from the Greek and Roman mythology, Castor and Pollux are the main stars of the constellation Twins, marking the heads of the two twins.
Long known as a double star system, well visible in telescopes, Castor is in fact a system comprising six stars. All six stars are bound together by their gravity, where the two main components Castor A (α Geminorum) and Castor B (α Geminorum) revolve around each other in 420 years. Such complex multi star systems are very rare, which makes Castor truly amazing.
Declination
31.8886°
Right ascension
7h 34m 36s (113.65002°)
The magnitude (brightness) is measured on a logarithmic scale. Small numbers mean bright stars: A star with a brightness of 1 mag is 100 times brighter that an star with 6 mag.
Magnitude
2.11 mag
The distance is measured in light years (LY). A light year is the distance, that light travels within one year. 1 LJ is equal to about 5,878,630,000,000 miles.
Distance
5252 ly
Tycho-Identifier
2457:2407:1
This star belongs to the huge UCAC 3 catalog. It is identified by this number in the UCAC 3 catalog.
UCAC3-Identifier
HIP-Identifier
36850
Spectral type
A1V
Color index
0.03
Every star belongs to a constellation, and 12 of those constellations are part of the zodiac.
Constellation
Gemini (Twins)
This is a very old constellation, representing the two twins Castor and Pollux. They have been regarded as the patrons and protectors of sailors.
The NFT has been purchased. Below is the information that is documented in the Ethereum blockchain.
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Dedicate this star on Staracle and receive the NFT and a framed certificate (selected shipping countries). Our Stellar Smart Contract in the Ethereum blockchain brings you as close to owning a stellar object as you can get. Find out more!
This object was minted. You can purchase the Non-Fungible Token (NFT). An NFT is a digital asset, a proof-of-ownership in the Ethereum blockchain. Once you purchased the NFT, your ownership will be documented on Staracle. You can trade the NFT on online market places like OpenSea, since it is a digital asset according to the OpenZeoppelin ERC721 standard. Read more on our NFTs here.
If you would like to dedicate this object and purchase the NFT directly with your credit card or via PayPal, please contact us directly.
Dedicate this star on Staracle and receive the NFT and a framed certificate (selected shipping countries). Our Stellar Smart Contract in the Ethereum blockchain brings you as close to owning a stellar object as you can get. Find out more!
This star was minted. You can purchase the Non-Fungible Token (NFT). An NFT is a digital asset, a proof-of-ownership in the Ethereum blockchain. Once you purchased the NFT, your ownership will be documented on Staracle. You can trade the NFT on online market places like OpenSea, since it is a digital asset according to the OpenZeoppelin ERC721 standard. Read more on our NFTs here.
If you would like to dedicate this object and purchase the NFT directly with your credit card or via PayPal, please contact us directly.
Mint this star for only ETH 0.02 and document it with an NFT in the Ethereum blockchain. Includes a free premium package for your star.
Once you purchased the NFT, your ownership will be documented in the Staracle Stellar Smart Contract on the Ethereum blockchain and on Staracle.com. You can trade the NFT on online market places like OpenSea, since it is a digital asset according to the OpenZeppelin ERC721 standard.
This object was minted. You can purchase the Non-Fungible Token (NFT). An NFT is a digital asset, a proof-of-ownership in the Ethereum blockchain. Once you purchased the NFT, your ownership will be documented on Staracle. You can trade the NFT on online market places like OpenSea, since it is a digital asset according to the OpenZeoppelin ERC721 standard. Read more on our NFTs here.
This star was minted. You can purchase the Non-Fungible Token (NFT). An NFT is a digital asset, a proof-of-ownership in the Ethereum blockchain. Once you purchased the NFT, your ownership will be documented on Staracle. You can trade the NFT on online market places like OpenSea, since it is a digital asset according to the OpenZeoppelin ERC721 standard. Read more on our NFTs here.
If you have any questions or would like to learn more about our NFT collectibles, please do not hesitate to contact us anytime.
Dedication & Certificate
If you own the NFT you can write a dedication for this object, download a certificate.
The original buyer of the NFT will ralso eceive a framed print (16x12 in or 10x8 in).
Artist impression of Castor A.
Image credit: NASA/SDO and the AIA, EVE, and HMI science teams
Disclaimer
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