Oracular
アプリ

太陽星座計算機

あなたの占星術太陽星座を発見し、あなたの個性の宇宙的な秘密を解き明かします。あなたの太陽星座はあなたの中心的なアイデンティティと人生の目的を明らかにします。

あなたの太陽星座を発見

あなたの個性の宇宙的な秘密を解き明かす

なぜあなたの太陽星座が重要なのか

あなたの太陽星座はあなたの占星術プロフィールの基礎であり、あなたの中心的な個性、エゴ、生命力を表します。それはあなたがどのように表現するか、あなたの自然な才能、そして個人的成長への道を明らかにします。あなたの太陽星座を理解することは、あなたの自己発見の宇宙的な旅の第一歩です。

実践占星術師からの補足

太陽星座は、あなたの選択の背後にある安定した火です。何と同一化し、何を目指し、どのように人生を主導していくかを示します。「いちばん自分らしい」と感じるとき、太陽が健やかに表現されていることが多いです。

鑑定では太陽を月とアセンダントと合わせて読みます。太陽は目的、月は感情的ニーズ、アセンダントは人生があなたにどう出会うか。3つをセットで理解すると、強みが現実的で再現性のある形になります。

結果が「近いけれど完全に一致しない」と感じても自然です。太陽星座は土台であり、チャート全体ではありません。時期、トランジット、惑星の品位が、現実での太陽の出方をさらに細かくします。

How your sun sign is determined

Your sun sign is simply the zodiac sign the sun was passing through on the day you were born. Unlike your moon sign or rising sign, it needs no birth time or birth place — only your birth date — because the sun moves through the entire zodiac just once a year, spending roughly a month in each sign.

This calculator uses the standard tropical zodiac dates, the system most familiar in Western astrology and used by most horoscope columns and apps.

Worked example

Someone born on August 10th falls between July 23 and August 22, so their sun sign is Leo. Someone born right on a boundary date, like August 22nd or August 23rd, is on the cusp between Leo and Virgo — the sun is still fully in one sign, but it is worth checking the exact time of the changeover in that specific year if the date matters to you.

Sun sign date ranges and meanings

SignDate rangeCore theme
AriesMar 21 – Apr 19Initiative, courage, competitive drive
TaurusApr 20 – May 20Stability, patience, sensory pleasure
GeminiMay 21 – Jun 20Curiosity, communication, adaptability
CancerJun 21 – Jul 22Nurturing, intuition, emotional depth
LeoJul 23 – Aug 22Confidence, warmth, creative self-expression
VirgoAug 23 – Sep 22Precision, service, practical analysis
LibraSep 23 – Oct 22Balance, harmony, partnership
ScorpioOct 23 – Nov 21Intensity, transformation, depth
SagittariusNov 22 – Dec 21Optimism, exploration, philosophy
CapricornDec 22 – Jan 19Discipline, ambition, long-term planning
AquariusJan 20 – Feb 18Independence, innovation, humanitarian ideals
PiscesFeb 19 – Mar 20Empathy, imagination, spiritual sensitivity

These are standard tropical zodiac dates. Boundary dates can shift by a day depending on the exact year, so if your birthday falls right on one of these edges, an exact birth time and a proper ephemeris will confirm your sign with certainty.

Frequently asked questions

What is the difference between sun sign and zodiac sign?
Casually they're the same thing. Technically, a full birth chart has twelve zodiac placements — sun, moon, rising, and every planet each sit in a sign — and the sun sign is just the most commonly referenced one.
Why do sun sign dates sometimes vary by a day between sources?
The sun doesn't change signs at the same clock time every year — the transition shifts by roughly six hours annually and gets corrected by leap years. If your birthday is within a day or two of a boundary, check your exact birth time against precise ephemeris data.
What does it mean to be born on the cusp?
Your birthday falls close to the changeover date between two signs. The sun is still fully in one sign — there is no true blend — but people born near a boundary sometimes feel they carry traits of both.
Is my sun sign the same in Vedic and Western astrology?
Often not. Western astrology uses the tropical zodiac, anchored to the seasons; Vedic astrology uses the sidereal zodiac, anchored to the constellations. The two are now roughly 24 degrees apart, so your Vedic sun sign is frequently one sign earlier.
Does my sun sign describe my whole personality?
No single placement does. Your sun sign describes your core identity, your moon sign shapes your emotions, and your rising sign shapes first impressions. The sun sign alone is a starting point.

Keep exploring