Diadem
Alpha Comae Berenices · Coma Berenices
Position (2026)
♎ 9°19' Libra
Magnitude
4.32
Planetary Nature
Moon / Venus (robson)
Robson: Moon and Venus. Alpha Comae Berenices, the crown jewel of Berenice's Hair.
Spectral Type
F5V
Appearance
A yellow-white binary in Coma Berenices, representing the jewel in Berenice's crown of hair
Name Origin
Language
Greek/Latin
Original Form
Diadema
Meaning
The Crown, the Royal Headband
Alpha Comae Berenices. From the Greek diadema, a royal headband or crown. The constellation represents the hair of Queen Berenice II of Egypt, who offered her tresses to the gods. The star name references the jeweled ornament in her shorn hair.
Known As
Diadem in Astrology
Diadem, the wreath of Berenice's Hair in Coma Berenices, carries Moon-Venus energy that bestows sacrifice for love, devotion that surrenders personal glory, and the beauty of selfless giving. It grants you a capacity for love so complete that personal ambition is willingly subordinated to the welfare of the beloved.
Mythology & History
Diadem, also known as Alpha Comae Berenices, represents the brightest star in the constellation of Berenice's Hair. Queen Berenice II of Egypt vowed to sacrifice her famous golden hair to Aphrodite if her husband Ptolemy III returned safely from war. When he did, she cut her hair and placed it in the temple, but it disappeared overnight. The astronomer Conon of Samos diplomatically declared that Aphrodite had been so pleased she placed the hair among the stars. The Moon-Venus nature of Diadem reflects this story of feminine devotion, sacrifice, and celestial reward.
Coma Berenices Context
Diadem anchors the constellation Coma Berenices, Berenice's Hair, a scattering of faint stars that represents the queen's shorn golden tresses spread across the sky. The constellation is unusual in being one of the few named after a historical rather than mythological figure. Coma Berenices contains the north galactic pole and is rich with distant galaxy clusters. Diadem's Moon-Venus nature gives it a quality of gentle, sacrificial love: the willingness to give up personal beauty for a higher devotion.
Learn more about Coma Berenices and its stars.
Natal Conjunctions
Find your conjunctions →Diadem Conjunct Sun
Diadem conjunct the Sun produces a personality of devoted sacrifice and the capacity for offering what you value most in service of love. You possess the wreath's quality of beauty voluntarily surrendered for a cause greater than personal adornment.
Diadem Conjunct Moon
Diadem conjunct the Moon creates emotional instincts of sacrificial devotion and the willingness to offer your deepest feelings in service of love or loyalty. Emotional security comes through the act of giving rather than holding.
Diadem Conjunct Mercury
Diadem conjunct Mercury gives a mind oriented toward understanding sacrifice and the intellectual capacity for articulating what devotion costs and what it earns. You communicate with the quality of someone who understands that the most beautiful offerings require genuine surrender.
Diadem Conjunct Venus
Diadem conjunct Venus doubles the quality of sacrificial beauty and devoted, offering love. You possess an exceptional capacity for love that gives itself entirely, and creative work carries the quality of beauty voluntarily offered rather than commercially displayed.
Diadem Conjunct Mars
Diadem conjunct Mars channels assertive energy into devoted, sacrificial protective action. You fight to protect what you love with the willingness to surrender your own comfort for the sake of what you defend.
Diadem Conjunct Jupiter
Diadem conjunct Jupiter expands sacrificial devotion into broad, generously offering philosophical leadership. You give on a large scale and understand that genuine leadership requires sacrificing personal advantage for collective benefit.
Diadem Conjunct Saturn
Diadem conjunct Saturn grounds sacrificial devotion in disciplined, sustainedly devoted offering. You learn that the most meaningful sacrifices are sustained across a lifetime, not offered in a single dramatic gesture.
Diadem Conjunct Uranus
Diadem conjunct Uranus brings unexpected sacrificial offerings and surprising demonstrations of devoted surrender. Your generosity arrives through unconventional channels that catch others off guard.
Diadem Conjunct Neptune
Diadem conjunct Neptune refines sacrificial devotion into its most spiritually transparent, selflessly beautiful expression. You offer without keeping account and give with a quality of genuine, ego-free devotion.
Diadem Conjunct Pluto
Diadem conjunct Pluto transforms sacrificial devotion into profoundly powerful, fundamentally transformative acts of offering. What you surrender permanently alters both yourself and what receives your gift.
Diadem Conjunct North Node
Diadem conjunct the North Node orients destiny toward developing the capacity for genuine sacrificial devotion and the beauty that comes from offering what you value most in service of love.
Diadem Conjunct Ascendant
Diadem on the Ascendant gives a devotedly offering, sacrificially graceful presence. Others sense the quality of someone who gives genuinely and is beautified rather than diminished by what they surrender.
Diadem Conjunct Midheaven
Diadem on the Midheaven builds a career through devoted, sacrificially generous professional service. Recognition comes for the quality of genuine offering that your professional contributions embody.
Paran Interpretations
Parans describe what happens when Diadem and a planet simultaneously occupy the four angles (rising, culminating, setting, nadir) at a given location.
Diadem in Paran with Sun
Rising
Diadem rising with the Sun marks someone who enters life with natural devotional generosity and the instinct for sacrificial offering.
Culminating
Diadem culminating with the Sun places devoted, sacrificially generous leadership at the peak of public achievement.
Setting
Diadem setting with the Sun suggests a legacy of sacrificial devotion and generous offering honored across a lifetime.
At the Nadir
Diadem at the nadir with the Sun reveals deeply private reserves of devoted sacrifice that shape all outward generosity.
Diadem in Paran with Moon
Rising
Diadem rising with the Moon instills early emotional devotion and the instinct for sacrificially generous feeling.
Culminating
Diadem culminating with the Moon brings devoted, sacrificially generous emotional offering to its most publicly visible form.
Setting
Diadem setting with the Moon indicates emotional devotion that grows more sacrificially beautiful with experience.
At the Nadir
Diadem at the nadir with the Moon conceals profound emotional devotional reserves and sacrificial generosity beneath composed surfaces.
Diadem in Paran with Mercury
Rising
Diadem rising with Mercury bestows early understanding of sacrifice and a talent for articulating devotion's costs and rewards.
Culminating
Diadem culminating with Mercury elevates devotionally understanding, sacrificially articulate communication to professional distinction.
Setting
Diadem setting with Mercury suggests thinking that grows more devotionally wise about sacrifice with decades.
At the Nadir
Diadem at the nadir with Mercury reveals hidden reserves of devotional understanding and sacrificial intellectual depth.
Diadem in Paran with Venus
Rising
Diadem rising with Venus shapes early love with devoted, sacrificially generous beauty and the grace of genuine offering.
Culminating
Diadem culminating with Venus brings recognition for beauty and love expressed through genuine, sacrificial devotion.
Setting
Diadem setting with Venus suggests love and beauty that grow more devotionally generous with the passage of years.
At the Nadir
Diadem at the nadir with Venus conceals a private devotional generosity and sacrificial beauty of extraordinary depth.
Diadem in Paran with Mars
Rising
Diadem rising with Mars channels early energy into devoted, sacrificially protective action in service of what is loved.
Culminating
Diadem culminating with Mars places devotedly sacrificial fighting courage at the apex of achievement.
Setting
Diadem setting with Mars indicates sacrificial fighting devotion that grows more effective with maturity.
At the Nadir
Diadem at the nadir with Mars conceals reserves of devotedly sacrificial protective energy deployed in service of love.
Diadem in Paran with Jupiter
Rising
Diadem rising with Jupiter expands early devotional generosity into broad, sacrificially offering philosophical leadership.
Culminating
Diadem culminating with Jupiter brings peak achievement through expansive, devotionally generous sacrificial leadership.
Setting
Diadem setting with Jupiter indicates growing scope for devoted sacrifice in the later years.
At the Nadir
Diadem at the nadir with Jupiter reveals vast inner devotional generosity and sacrificial philosophical vision.
Diadem in Paran with Saturn
Rising
Diadem rising with Saturn demands early discipline in developing the sustained, reliably devoted sacrifice of maturity.
Culminating
Diadem culminating with Saturn achieves lasting authority through decades of devotedly sacrificial professional service.
Setting
Diadem setting with Saturn builds an enduring legacy of sustained devotional sacrifice across a lifetime.
At the Nadir
Diadem at the nadir with Saturn establishes inner reserves of disciplined devotional sacrifice and offering patience.
Diadem in Paran with Ascendant
Rising
Diadem rising with the Ascendant stamps the personality with devoted, sacrificially graceful, offering presence.
Culminating
Diadem culminating with the Ascendant projects devoted sacrificial generosity onto the broadest possible stage.
Setting
Diadem setting with the Ascendant draws others who sense your genuine devotional generosity and sacrificial grace.
At the Nadir
Diadem at the nadir with the Ascendant grounds identity in deeply private devotional sacrifice and offering.
Diadem in Paran with Midheaven
Rising
Diadem rising with the Midheaven launches a career defined by devoted, sacrificially generous professional service.
Culminating
Diadem culminating with the Midheaven represents peak career achievement through genuine, devotionally sacrificial leadership.
Setting
Diadem setting with the Midheaven indicates a career legacy of devoted professional sacrifice valued for its genuine generosity.
At the Nadir
Diadem at the nadir with the Midheaven builds career success on hidden foundations of devotional sacrifice and offering discipline.
Frequently Asked Questions
What does the name Diadem mean?
The name Diadem comes from Greek/Latin: Diadema, meaning "The Crown, the Royal Headband." Alpha Comae Berenices. The star is known by 3 different cultural names across world traditions.
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