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Zodiac: Aquarius
Jan 21 - Feb 19
Read more about Aquarius.
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Castor A (α Geminorum)

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
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)

NFT Data

Our Stellar Smart Contract in the Ethereum blockchain brings you as close to owning a stellar object as you can get. Still, we do this just for fun, as nobody will ever be able to own a stellar object. Learn more!
The NFT has been purchased. Below is the information that is documented in the Ethereum blockchain.
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.
or
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.
or
Contract ID
Token ID
2457024071003367438028374196370900010110 (download meta data)
Wallet ID of NFT owner
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 on Staracle. 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 has not been minted yet. Contact us and request it to be minted in order to purchase the NFT on OpenSea.
Or purchase it directly with your credit card or Paypal:
This star has not been minted yet. Contact us and request it to be minted.
Or purchase it directly with your credit card or Paypal:
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.

Dedication & Certificate

If you own the NFT you can write a dedication for this object, download a certificate, and you will receive a framed print.
Artist impression of Castor A.
Image credit: NASA/SDO and the AIA, EVE, and HMI science teams
License: Public Domain
Disclaimer
While we take great care in compiling the data of all astronomical objects in our database, errors can never be ruled out completely. Therefore, no warranty is taken over for the correctness of the data, the descriptions, or the associated images. Staracle cannot be held liable for any damage, direct or indirect, that may result from incorrect data.
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