Dictionary term
Deneb
Direct answer
Deneb is Alpha Cygni, an extremely luminous blue-white supergiant marking the tail of Cygnus and one corner of the Summer Triangle.
Deneb is Cygnus's distant supergiant and the top of the Northern Cross.
Deneb is Cygnus's distant supergiant and the top of the Northern Cross.
A symbolic locator, not a substitute for an observational chart at a specific place and time.Quick reference
- Use when
- Find Deneb at the Milky Way end of the Summer Triangle, then trace the Northern Cross through Sadr to Albireo.
- Do not use it for
- Its exact distance has historically been difficult to determine, so luminosity estimates carry uncertainty.
- Reference category
- Constellations & Star Lore
- Related terms
- Achernar, Altair, Pollux, Castor
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The story behind Deneb
Its Arabic-derived name means tail and belongs to a family of stellar names marking animal tails.
Deneb in spiritual tradition
Deneb makes immense stellar power appear as one calm point in the summer sky.
Deneb: fact and faith, kept distinct
This is a factual sky reference. It can support wonder and orientation without turning a measured position or inherited pattern into a claim of fate or private revelation.
Deneb in numerology
Deneb is not a numerology claim. Any numbers attached to it should retain their ordinary scientific, calendrical, navigational, or historical meaning unless a separate symbolic interpretation is clearly labeled.
Why Deneb matters
It looks comparable to nearby bright stars despite being vastly farther away, revealing its extraordinary intrinsic luminosity.
Deneb at work: an example
Deneb remains a first-magnitude star even though its light travels for well over a thousand years.
Where interpretation stops
Deneb is presented as sourced astronomy, calendrical, Earth-science, cultural, or instrument-history reference. Definitions should distinguish measured phenomena from civil convention and historical interpretation, preserve location and time dependencies, and avoid turning factual sky data into a deterministic personal claim.
Sources and editorial method
Research references used for this entry include:
- IAU Division C Working Group on Star Names - Official IAU working group responsible for standardizing star names used in international astronomy.
- CDS SIMBAD Astronomical Database - Professional astronomical database for stellar identifiers, positions, classifications, and bibliography.
- Source
- The Great Almanac Dictionary
- Category
- Constellations & Star Lore
- Also appears in
- Constellations & Star Lore
- Aliases
- None listed
- Last updated
- 2026-07-16
Stand at the tail of the Swan
Deneb in a book is one thing; Deneb in your own birth chart is your life. The Oracle casts your real chart and tells you what it means for your love, your work, and your year ahead, in conversation, free.
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Common questions
What is Deneb?
Deneb is Alpha Cygni, an extremely luminous blue-white supergiant marking the tail of Cygnus and one corner of the Summer Triangle.
How is Deneb used in an almanac?
Find Deneb at the Milky Way end of the Summer Triangle, then trace the Northern Cross through Sadr to Albireo.
What should I avoid when interpreting Deneb?
Its exact distance has historically been difficult to determine, so luminosity estimates carry uncertainty.
