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♂ Tamil boy name · Chaldean Numerology

Castor

"Bright star in Gemini twins, mortal twin brother of Pollux"

Quick answer

Castor is a Tamil name meaning 'Bright star in Gemini twins, mortal twin brother of Pollux'. Numerology number 2. Lucky colour: White. Lucky number: 2.

✦Reviewed by our Vedic Numerology experts · Updated April 2026
Meaning
Bright star in Gemini twins, mortal twin brother of Pollux
Origin
Tamil
Numerology number
2
Lucky colour
White
Lucky number
2
2
Chaldean
22
Pythagorean
The Peacemaker
Numerology Type
2
Syllables

Meaning of Castor

Castor is a beautiful Tamil boy name — a two-syllable name that is easy to call out and pleasant to hear. The name means bright star in gemini twins, mortal twin brother of pollux.

The meaning carries multiple layers: bright star in gemini twins, and mortal twin brother of pollux. Each of these qualities adds depth to the name and creates a rich identity for the child who bears it.

The name starts with the letter C, which in Chaldean numerology carries its own energy as part of the name's overall vibration. The first letter is the "cornerstone" — it reveals how the person approaches new situations and the first impressions they make on the world.

In Chaldean numerology — the oldest and most accurate system of name numerology, originating in ancient Mesopotamia — Castor vibrates at the number 2. This number reveals the hidden energy and destiny connected to the name.


Nakshatra & Rashi Match

Names starting with C are traditionally considered auspicious for babies born under Ashwini Nakshatra and Revati Nakshatra, which falls under Mithun (Gemini) Rashi and Meen (Pisces) Rashi.

Combining the Nakshatra's recommended syllable with Castor's Chaldean number 2 gives a name that honours both the birth star and its numerology vibration.


Tamil Origin & Cultural Heritage

Tamil names belong to one of the oldest surviving classical language traditions — Tamil literature dates back over 2,500 years. Names are drawn from Sangam poetry, the Thirukkural, the names of Tamil deities (Murugan, Amman, Karthikeyan), and nature imagery. Tamil naming reflects a deep reverence for the Dravidian cultural identity distinct from Sanskrit traditions, though many families blend both.

Naming tradition: The birth star (Jathakam) plays a central role in Tamil naming. The first syllable of the name is derived from the nakshatra of birth, then a meaningful Tamil or Sanskrit word is built around it.

Popular regions

Tamil NaduSri LankaSingaporeMalaysiaTamil diaspora worldwide

Numerology Profile — Number 2

The Peacemaker · Ruled by Moon

People with number 2 are gentle, kind, and caring. They make wonderful friends and partners because they are patient listeners who always want peace and harmony. They work best in partnerships and teams..


Full Personality Analysis — The Peacemaker

People with number 2 are gentle, kind, and caring. They make wonderful friends and partners because they are patient listeners who always want peace and harmony. They work best in partnerships and teams.

Key Strengths
DiplomacyEmpathyTeamworkPatience
Growth Area

May be too sensitive or indecisive at times.


Lucky Dates — September 2026

Based on Chaldean number 2, these dates in September 2026 carry the strongest vibration for Castor. Ideal for first words, naming ceremonies, or important decisions.

220

Lucky Gemstone

Pearl

Brings peace, intuition and harmony

When to wear: Little finger, Monday morning


Compatible Sibling Names

These names share numerologically compatible numbers (2, 4, 6) with Castor, making them ideal sibling name pairs for harmony.


Business Name Compatibility

For a child named Castor (number 2), the most compatible business names will have Chaldean numbers 2, 4, 6. When Castor grows up, choosing a business or brand name that aligns with these numbers significantly boosts the chances of success and recognition.

Use the Business Name Numerology tool to check specific names.


Complete Lucky Profile

Lucky Colours

WhiteSilverCream

Lucky Days

MondayFriday

Ruling Planet

Moon

Best Career Paths

Counselling, teaching, nursing, diplomacy, arts


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Frequently Asked Questions
What is the meaning of Castor?+

Castor is a Tamil boy name meaning "bright star in gemini twins, mortal twin brother of pollux". In Chaldean numerology, Castor vibrates at the number 2, which carries the energy of the peacemaker. The name has 2 syllables and is traditionally given to boy children in Tamil families.

What is the Chaldean numerology number for Castor?+

The Chaldean numerology number for Castor is 2 — The Peacemaker. The Pythagorean number is 22. Number 2 is ruled by Moon and is associated with careers in counselling and teaching. The lucky colours are White, Silver, Cream and the lucky days are Monday and Friday.

Is Castor a boy or girl name?+

Castor is traditionally a boy name with Tamil origins. The name means "bright star in gemini twins, mortal twin brother of pollux" and has a 2-syllable structure, making it short and easy to call out. It is popular among Tamil families across India and the diaspora.

What are good sibling names for Castor?+

Good sibling names for Castor include Aadhavan, Aadhira, Aandal, Aandavan, Aaniyal, as these names carry compatible Chaldean numbers (2, 4, 6), creating a harmonious family numerology. Compatible numbers in Chaldean numerology tend to share similar vibrational energies.

Is Castor a lucky name?+

Castor carries the vibration of Chaldean number 2 (The Peacemaker), ruled by Moon. In Chaldean numerology this is considered a powerful and meaningful vibration. The lucky colours for Castor are White and Silver, and the most favourable days are Monday and Friday. Choosing an auspicious naming ceremony date can further strengthen the name's energy.