Precision without breadth: one tight square and little else
Katy Perry and Taylor Swift compatibility
↓ Below: all 3 aspects named, with orbs
Sources conflict on the birth time. No recorded verification, so houses and the rising sign are not shown.
Note on this rating: Birth time 08:36, Rodden DD (conflicting sources) via astrotheme.com, crediting Lois Rodden / Astro-Databank.
This page compares Sun, Mercury, Venus and Mars, the four placements a birth date alone can place. Moon, Ascendant and Midheaven are left out here by design, not by omission, so nothing on this page is scored against a birth time it cannot trust.
Cross-aspects
Where the two charts actually touch
The overlap
Two charts, laid over each other
Katy Perry and Taylor Swift's Sun, Mercury, Venus and Mars are drawn here, the four placements a birth date alone can place with no birth time required. This is a complete chart of what is known, not a partial chart of what is not.
| Thick line, Sun to Venus | SQUARE 0.57° |
| Thin line, Mercury to Mercury | SEXTILE 3.46° |
| House ring, not drawn | |
Why they click
Mercury sextiles Mercury at 3.46 degrees and Mars conjoins Mercury at 5.88. Both are wide, and both are the only supportive structure available. Communication reads 25, which sits below the engine's no-contact floor even though a real Mercury contact is present.
Why they clash
Sun squares Venus at 0.57 degrees, the tightest contact in the synastry and the one hard angle in it. Three contacts total and an overall reading of 29, which sits below the floor of 30 that the engine returns when it detects nothing at all. What it finds here is precision without breadth.
What each system says
Twelve systems, two people
The Suns are 49.2° apart, outside orb of any aspect, which is why identity reads as an empty channel above.
Rat and Snake are in neither the trines nor the clashes.
A second tradition
Guna Milan (Ashtakoot)
Guna Milan is the compatibility method used in Vedic matchmaking, traditionally consulted before an arranged marriage. It scores eight factors between two Moon placements on a 36-point scale, shown here as what this one tradition reads: not a verdict, and not averaged with the Western reading above, which may disagree.
Guna Milan needs an exact birth time for both people. The Moon changes nakshatra roughly once a day, so an estimated time can place the whole reading in the wrong one, and at least one birth time here isn't exact.
Shared history
Shared life events
52nd Annual Grammy Awards
5 passages · 2 charts
Transit detailCollapse
Aug 4, 2009 – Jul 30, 2010 · 360 days
Katy Perry
Birth time recorded to the minute · all contacts shown
- Pluto sextile Sunslow
- Jupiter trine Sunfast
Editorial note · Pluto sextile Sun
Pluto sextile the Sun in house 2 peaked 237 days before the Grammy win, building personal power and artistic value ahead of this career milestone.
Taylor Swift
Birth time estimated · Sun, Mercury, Venus and Mars contacts only
- Neptune square Marsslow
- Chiron square Marsslow
- Uranus square Sunslow
Moon, Ascendant and Midheaven contacts are not shown for Taylor Swift, and no house is named — those depend on a birth time recorded to the minute, and this one is an estimate.
Editorial note · Uranus square Sun
Sixty days before the ceremony, Uranus squaring the Sun marked a volatile power window that disrupted the artist's public identity ahead of Grammy night.
54th Annual Grammy Awards
8 passages · 2 charts
Transit detailCollapse
Sep 9, 2011 – Jul 17, 2012 · 312 days
Katy Perry
Birth time recorded to the minute · all contacts shown
- Chiron trine Sunslow
- Chiron square Venusslow
- Saturn conjunction Sunslow
- Jupiter opposition Sunfast
Editorial note · Saturn conjunction Sun
Saturn conjunct the Sun in the twelfth house four days before the ceremony marked a somber, weighty period of reckoning and quiet endurance ahead of the major industry honors.
Taylor Swift
Birth time estimated · Sun, Mercury, Venus and Mars contacts only
- Pluto conjunction Mercuryslow
- Uranus sextile Venusslow
- Saturn square Venusslow
- Jupiter square Venusfast
Moon, Ascendant and Midheaven contacts are not shown for Taylor Swift, and no house is named — those depend on a birth time recorded to the minute, and this one is an estimate.
Editorial note · Saturn square Venus
Four days before the Grammy Awards, Saturn square Venus brought a sober, heavy tone to this major career power window.
55th Annual Grammy Awards
11 passages · 2 charts
Transit detailCollapse
Aug 14, 2012 – Aug 9, 2013 · 360 days
Katy Perry
Birth time recorded to the minute · all contacts shown
- Chiron square Venusslow
- Pluto sextile Ascendantslow
- Uranus trine Venusslow
- Saturn conjunction Ascendantslow
- Neptune trine Sunslow
- Pluto sextile Mercuryslow
- Saturn conjunction Mercuryslow
- Jupiter opposition Venusfast
Editorial note · Neptune trine Sun
Just 1 day before the Grammys, Neptune formed an exact trine to her fourth-house Sun, anchoring an artistic milestone in deep personal resonance during a high-stakes power window.
Taylor Swift
Birth time estimated · Sun, Mercury, Venus and Mars contacts only
- Pluto conjunction Mercuryslow
- Uranus square Mercuryslow
- Chiron sextile Mercuryslow
Moon, Ascendant and Midheaven contacts are not shown for Taylor Swift, and no house is named — those depend on a birth time recorded to the minute, and this one is an estimate.
56th Annual Grammy Awards
11 passages · 2 charts
Transit detailCollapse
Jul 30, 2013 – Jul 25, 2014 · 360 days
Katy Perry
Birth time recorded to the minute · all contacts shown
- Chiron trine Ascendantslow
- Pluto sextile Mercuryslow
- Pluto sextile Ascendantslow
- Chiron trine Mercuryslow
- Neptune trine Sunslow
- Pluto conjunction Marsslow
- Jupiter trine Mercuryfast
- Jupiter opposition Marsfast
- North Node conjunction Sunfast
Editorial note · Neptune trine Sun
Occurring 73 days before the Grammys during a power window, Neptune trine Sun in house 4 enriched her creative core and quiet artistic confidence ahead of the major honors.
Taylor Swift
Birth time estimated · Sun, Mercury, Venus and Mars contacts only
- Uranus square Mercuryslow
- North Node square Venusfast
Moon, Ascendant and Midheaven contacts are not shown for Taylor Swift, and no house is named — those depend on a birth time recorded to the minute, and this one is an estimate.
Editorial note · Uranus square Mercury
Fifteen days before the Grammys, Uranus squaring Mercury stirred sudden ideas during a major power window that preceded this milestone.
American Music Awards of 2014
9 passages · 2 charts
Transit detailCollapse
May 27, 2014 – May 22, 2015 · 360 days
Katy Perry
Birth time recorded to the minute · all contacts shown
- Pluto sextile Mercuryslow
- Neptune square Venusslow
- Pluto conjunction Marsslow
- Uranus square Marsslow
- Chiron sextile Marsslow
- Pluto sextile Ascendantslow
- Chiron trine Mercuryslow
Editorial note · Pluto sextile Ascendant
Pluto sextile Ascendant opened a power window 61 days before the American Music Awards, consolidating personal authority and stage presence ahead of the ceremony.
Taylor Swift
Birth time estimated · Sun, Mercury, Venus and Mars contacts only
- Saturn conjunction Marsslow
- Jupiter trine Sunfast
Moon, Ascendant and Midheaven contacts are not shown for Taylor Swift, and no house is named — those depend on a birth time recorded to the minute, and this one is an estimate.
Frequently asked
Are Katy Perry and Taylor Swift astrologically compatible?
Their charts make 3 cross-aspects, the tightest at 0.57° and 3.46°. Astrology does not score a relationship out of a hundred, and the number on this page counts how much contact two charts make, not how well two people do.
Why isn't there a house ring on the chart above?
At least one of Katy Perry and Taylor Swift doesn't have a curated, non-estimated birth time, so a house placement would be a guess. This page only shows what a birth date alone can place.
What does square mean between two charts?
A square puts two placements at a right angle, generating friction that tends to force action. Katy Perry and Taylor Swift have one square between them.
Tight contact, mixed valence
Run the full synastry
This page compares Sun, Mercury, Venus and Mars, because those are the four that a birth date alone can place. The synastry calculator runs all ten bodies against each other.