Jenna Dewan Birth Chart: Sagittarius Sun and What the Planets Suggest

Astro Seek Editorial Team · Published October 2, 2026 · Last updated October 2, 2026

Planetary Positions

Calculated with Swiss Ephemeris for December 3, 1980 in Hartford, United States. The birth time is not on public record, so each position covers the whole birth day and no Rising sign, houses or Midheaven are shown.

Birth Data and Sources

Jenna Lee Dewan was born on December 3, 1980, in Hartford, United States, according to biographical information associated with her public record. Her career includes work as an actress and dancer, beginning as a backup dancer for Janet Jackson and later including roles in Step Up, The Playboy Club, American Horror Story: Asylum, Witches of East End, Supergirl, Superman & Lois, Soundtrack, and The Rookie. According to Wikipedia, she has also hosted and judged dance-focused television programs. Wikipedia and Wikidata provide reference points for her biographical identity and birth information.

Our Swiss Ephemeris calculation for December 3, 1980, in Hartford, using the America/New_York timezone, gives the planetary sign positions available from the date. Because no reliable birth time is available, the chart should be treated as a date-only chart rather than a complete timed natal chart. Astro-Databank classifies an untimed record as Rodden Rating X, reflecting that the birth time is unknown. For background on birth-chart data and source ratings, see Astro-Databank.

A date-only chart can still provide useful information about the Sun and most planetary signs. It simply cannot establish the time-sensitive parts of a natal chart. For a broader explanation, see our guide to birth charts without a birth time.

Jenna Dewan's Sun Sign: Sagittarius

Jenna Dewan's Sun is in Sagittarius. The Sun remains in Sagittarius throughout December 3, 1980, moving from about 11.2° to 12.2° during the day, so her Sun sign does not depend on her unknown birth time.

In traditional astrology, Sagittarius is a mutable fire sign associated with exploration, breadth of experience, movement, learning, and a direct approach to life. Astrologers often interpret the Sagittarius Sun as emphasizing curiosity, independence, enthusiasm, and an interest in expanding one's perspective. These are symbolic astrological interpretations rather than scientifically established descriptions of personality.

The Sun is often treated as a central indicator of identity and conscious self-expression in astrology. For Dewan, the Sagittarius placement gives the date-only chart a clear fire-sign emphasis, although the complete balance also includes Earth, Air, and Water placements.

Her documented career has included both dance and acting. According to Wikipedia, she began as a backup dancer for Janet Jackson and later worked with Christina Aguilera, Pink, and Missy Elliott before becoming widely known for playing Nora Clark in the 2006 film Step Up. Astrology does not establish that her Sagittarius Sun caused these career developments; the placement is better understood as a symbolic framework for reflection.

The Moon: Libra or Scorpio

The Moon is the most important time-sensitive placement in Jenna Dewan's date-only chart. On December 3, 1980, it moves from Libra to Scorpio during the day. At 00:00 local time it is approximately 22.6° Libra, while by 23:59 it is approximately 4.5° Scorpio.

That means the correct Moon-sign answer cannot be reduced to a single sign without a birth time: the Moon is in Libra or Scorpio depending on the birth time.

Astrologers traditionally associate the Moon with emotional responses, habits, instinctive reactions, and subjective experience. Libra is traditionally associated with balance, social awareness, cooperation, and consideration of different perspectives, while Scorpio is associated with depth, intensity, privacy, and emotional focus. Because the Moon changes signs on this date, either symbolic interpretation would need to be qualified by the missing birth time.

This is a good example of why an exact birth time matters. A person born early enough on December 3 could have the Moon in Libra, while someone born later could have the Moon in Scorpio. The date alone does not resolve the distinction.

Mercury, Venus and Mars

Mercury is in Scorpio throughout the day, moving from approximately 26.1° to 27.6°. In traditional astrology, Mercury describes communication, thinking, learning, and information processing. Mercury in Scorpio is often associated by astrologers with concentrated attention, probing questions, research, and an interest in subjects beneath the surface.

Venus is also in Scorpio, moving from about 11.3° to 12.5°. Venus is traditionally connected with affection, aesthetics, values, attraction, and social preferences. Astrologers often associate Venus in Scorpio with intensity, depth, loyalty, and an emotionally serious approach to personal values. These interpretations are symbolic rather than scientifically established claims about an individual's behavior.

Mars is in Capricorn, moving from approximately 8.5° to 9.2° during the day. Mars is traditionally associated with action, initiative, motivation, and the way energy is directed. Mars in Capricorn is often linked in astrology with discipline, persistence, organization, and a practical approach to pursuing objectives.

Taken together, Mercury in Scorpio, Venus in Scorpio, and Mars in Capricorn create a combination of Water and Earth symbolism around the personal planets beyond the Sagittarius Sun. The chart therefore includes both the expansive symbolism of Sagittarius and more concentrated Scorpio and Capricorn themes.

Jupiter, Saturn and the Outer Planets

Jupiter is in Libra at approximately 6.4°–6.5°, while Saturn is in Libra at approximately 7.9°–8°. Jupiter is traditionally associated with expansion, learning, opportunity, and broader understanding. Saturn is associated with structure, responsibility, boundaries, and discipline. Their shared placement in Libra is especially notable because the two planets are also in conjunction, with an orb of 1.5° at local noon.

Uranus is in Scorpio at approximately 26.8°–26.9°. Neptune is in Sagittarius at about 22°, and Pluto is in Libra at approximately 23.5°. Uranus, Neptune, and Pluto are generational planets: because they move relatively slowly, their sign placements are shared by many people born around the same period and are generally less individualizing than the faster-moving personal planets.

Uranus in Scorpio is traditionally interpreted through themes of transformation and unconventional approaches to deep subjects. Neptune in Sagittarius is often associated with ideals, imagination, spirituality, and broad philosophical themes. Pluto in Libra is commonly interpreted in relation to transformation involving partnerships, social values, and systems of balance. These are conventional astrological associations, not established scientific effects.

Key Aspects in Jenna Dewan's Chart

The major aspects identified at local noon, excluding the Moon because its exact position depends on the unknown birth time, are as follows:

Mercury in Scorpio conjunct Uranus in Scorpio is exact at the stated calculation point. Astrologers often associate Mercury-Uranus conjunctions with unconventional thinking, sudden insights, originality, and an interest in unusual or complex ideas.

Mars in Capricorn square Saturn in Libra has an orb of 0.9°. In traditional astrology, Mars-Saturn squares are often interpreted as a symbolic tension between action and restraint, while Mars in Capricorn can emphasize disciplined effort.

Jupiter in Libra conjunct Saturn in Libra has an orb of 1.5°. Astrologers often interpret this combination as bringing together expansive Jupiter themes and Saturnian structure, particularly through Libra subjects such as balance, cooperation, and social principles.

Neptune in Sagittarius sextile Pluto in Libra has an orb of 1.5°. As an outer-planet aspect, this is primarily generational rather than a uniquely personal signature. Mars in Capricorn square Jupiter in Libra, with a 2.4° orb, is traditionally associated with tension between disciplined action and expansion or enthusiasm.

Element and Modality Balance

Using the planets with established signs and excluding the Moon because its sign changes during the day, the chart has 2 Fire, 1 Earth, 3 Air, and 3 Water placements.

The Fire count comes from the Sagittarius placements of the Sun and Neptune. Earth is represented by Mars in Capricorn. Air includes Jupiter in Libra, Saturn in Libra, and Pluto in Libra. Water includes Mercury in Scorpio, Venus in Scorpio, and Uranus in Scorpio.

The modality count is 4 Cardinal, 3 Fixed, and 2 Mutable. Cardinal signs are associated traditionally with initiation and action, Fixed signs with persistence and continuity, and Mutable signs with adaptation and flexibility.

This balance should not be read as a personality score. It simply describes how the planets with stable sign placements are distributed across the four elements and three modalities in this date-only calculation. The Moon is excluded because assigning it to Libra or Scorpio would change the totals depending on the birth time.

What We Can't Know Without a Birth Time

The missing birth time places clear limits on what can responsibly be said about Jenna Dewan's complete natal chart. Most importantly, her Rising sign cannot be established. The Rising sign changes relatively quickly and requires the local birth time and place. The same applies to the Midheaven and all house placements.

Astrological houses divide the chart into areas traditionally associated with topics such as identity, finances, communication, home, creativity, work, relationships, career, and other life themes. Without an exact birth time, those house boundaries cannot be reliably calculated. For a general explanation of the difference between the Sun, Moon, and Rising signs, see Sun, Moon and Rising signs.

The Moon also demonstrates why timing matters even before houses are considered. On December 3, 1980, it changes from Libra to Scorpio, so a definitive Moon sign requires the birth time. The planetary signs that remain stable throughout the day, however, can still be discussed without selecting an arbitrary time.

Readers who want to calculate their own complete chart can use the free birth chart calculator, where an exact birth time can be entered when available. For Jenna Dewan, an exact time would be needed before interpreting her Rising sign, Midheaven, or houses.

Compare Your Chart with Jenna Dewan

A useful way to explore the symbolism is to calculate your own chart and compare the planetary signs rather than treating similarities as proof of personality or compatibility. Your own chart can show where your Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto fall by sign.

If you have an accurate birth time, your chart can also include the Rising sign, Midheaven, and houses. You can then explore a synastry chart for a side-by-side astrological comparison with another person's chart. Synastry is an astrological technique traditionally used to examine relationships between two charts; it is not a scientifically established method for determining relationship outcomes.

You can also browse celebrity birth charts by sign to compare other public figures using the same basic framework. For Jenna Dewan, the clearest time-independent features are her Sagittarius Sun, Scorpio Mercury and Venus, Capricorn Mars, Libra Jupiter and Saturn, Scorpio Uranus, Sagittarius Neptune, Libra Pluto, and the major aspects identified above.

Overall, Jenna Dewan's date-only chart offers a useful astrological snapshot while leaving several important questions open. Her Sagittarius Sun is certain from the date, while her Moon is Libra or Scorpio depending on birth time, and her Rising sign, Midheaven, and houses remain unknown. Astrology is not scientifically established, so these placements are best approached as a traditional symbolic language for reflection rather than as deterministic explanations of a person's life.

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