Verifications & Tests

Transparency and Reliability in Sky Calculations

Every chart you open in Mirror is calculated from real sky data for that day and coordinates. It's based on astronomical measurements, not guesses.

While developing the engine, we compared it with NASA JPL Horizons, Minor Planet Center, and common ephemerides after every update. We continue the same tests today so you only see verified values on your screen.

NASA JPL HorizonsMinor Planet CenterGlobal astrology ephemerides

NASA JPL Horizons

We compare every chart with NASA Horizons data; so the degrees you see on your screen match the real sky exactly.

When a new version is released, we recalculate the same date-times and don't proceed without fixing any deviations.

Minor Planet Center

We check asteroids and special points with the MPC catalog to maintain the same accuracy for small bodies.

These checks are only for reliability; each coordinate is matched with the MPC list without sharing user data.

Global Astrological References

We compare results with classical ephemerides like Swiss Ephemeris and VSOP87 to show our method stays consistent with industry standards.

The goal isn't to sell data; it's only to prove that the engine working for you is compatible with globally accepted tables.

How Do We Verify?

We Compare with Reliable Astronomical Sources

We put every calculated degree side by side with NASA Horizons and MPC data; if we see a difference, we find the cause and don't show it to you without fixing it.

We Work Compatible with Globally Used Ephemerides

Tests we do with tools like Swiss Ephemeris and VSOP87 prove that the degrees and houses you see in Mirror match international tables.

We Provide a Transparent Process

If you wonder how we test, we share example tables, screenshots, and links; you can enter the same date-time-location and see the same result yourself.

Mini Test Engine

Verify with your own data in seconds

Enter date, time, and location to get the planet placements Mirror calculates. Results come with reference links to NASA JPL Horizons and Swiss Ephemeris.

Note: You can enter coordinates manually, or select a city and use the Fetch Coordinates button below to fill latitude/longitude used for the calculation.

Example Verification Cards

Reference cards we share for transparency

Here we show you how public celebrity records are verified, not real user data. First try the same date-time combination yourself with the mini test engine, then see the one-to-one comparison with NASA Horizons and Swiss Ephemeris outputs in the cards.

How can I test?

Select one of the cards below, enter the same information yourself, and see the same numbers in a few minutes:

Enter the date, time, location, and time zone written on the card into NASA JPL Horizons or Swiss Ephemeris.
Extract the 'ObsEcLon' column in Horizons or the Placidus house table in Swiss Ephemeris.
When you see a one-to-one match with the Mirror column, you have verified with your own eyes that the calculation engine produces the same result.

Note: All data shown is obtained from publicly available reference records. Personal user charts are kept private.

House numbers are shown according to the Placidus system; numbers may change when different house systems are selected.

Reference person

Albert Einstein

Theoretical Physicist

One of our most frequently used records in scientific comparisons because the official birth certificate is archived.

Reliability: Rodden AA

Birth Information

1879-03-14 • 10:50 (Europe/Berlin)

Ulm, Germany (48.40°, 9.99°)

Source: Astro-Databank, birth certificate (Rodden AA). Note: Standard time zones didn't exist in 1879; records were kept in Local Mean Time (LMT). Small differences in Ascendant calculations are possible.

Sun

Identity and core energy

Sun

Mirror

23°29' Pisces (House 10)

Reference

23° Pisces

Swiss Ephemeris

Moon

Emotions and inner world

Moon

Mirror

14°08' Sagittarius (House 6)

Reference

14° Sagittarius

Swiss Ephemeris

Ascendant

Outward expression

Ascendant

Mirror

4°44' Cancer (House 1)

Reference

3° Cancer

Swiss Ephemeris

Note: LMT conversion ~1.5° deviation is normal

Mercury

Mind and communication

Mercury

Mirror

3°06' Aries (House 10)

Reference

3° Aries

Swiss Ephemeris

Venus

Attraction and values

Venus

Mirror

16°57' Aries (House 11)

Reference

16° Aries

Swiss Ephemeris

Mars

Willpower and action

Mars

Mirror

26°54' Capricorn (House 8)

Reference

26° Capricorn

Swiss Ephemeris

Reference links

Astro-Databank

Reference person

Marie Curie

Nobel Prize-winning Chemist & Physicist

Time information is clear thanks to academic ceremonies and state records; a solid example for the late 19th century.

Reliability: Rodden A

Birth Information

1867-11-07 • 12:00 (Europe/Warsaw)

Warsaw, Poland (52.23°, 21.01°)

Source: Astro-Databank, historical record (Rodden A, noon time)

This source shared birth time assuming noon (12:00); ascendant and house numbers may differ in other sources.

Sun

Identity and core energy

Sun

Mirror

14°35' Scorpio (House 9)

Reference

14° Scorpio

Swiss Ephemeris

Moon

Emotions and inner world

Moon

Mirror

16°28' Pisces (House 2)

Reference

16° Pisces

Swiss Ephemeris

Ascendant

Outward expression

Ascendant

Mirror

13°41' Capricorn (House 1)

Reference

12° Capricorn

Swiss Ephemeris

Mercury

Mind and communication

Mercury

Mirror

6°38' Sagittarius (House 10)

Reference

6° Sagittarius

Swiss Ephemeris

Venus

Attraction and values

Venus

Mirror

25°35' Scorpio (House 10)

Reference

25° Scorpio

Swiss Ephemeris

Mars

Willpower and action

Mars

Mirror

29°37' Scorpio (House 10)

Reference

29° Scorpio

Swiss Ephemeris

Reference links

Astro-Databank

Reference person

Frida Kahlo

Painter

A reliable record from Latin America, verified with documents found in the Museo Frida Kahlo archive.

Reliability: Rodden A

Birth Information

1907-07-06 • 08:30 (America/Mexico_City)

Coyoacán, Mexico (19.35°, -99.16°)

Source: Astro-Databank, civil registry (Rodden A)

Sun

Identity and core energy

Sun

Mirror

13°23' Cancer (House 11)

Reference

13° Cancer

Swiss Ephemeris

Moon

Emotions and inner world

Moon

Mirror

29°42' Taurus (House 10)

Reference

29° Taurus

Swiss Ephemeris

Ascendant

Outward expression

Ascendant

Mirror

24°40' Leo (House 1)

Reference

23° Leo

Swiss Ephemeris

Mercury

Mind and communication

Mercury

Mirror

6°20' Leo (House 12)

Reference

6° Leo

Swiss Ephemeris

Venus

Attraction and values

Venus

Mirror

24°21' Gemini (House 10)

Reference

24° Gemini

Swiss Ephemeris

Mars

Willpower and action

Mars

Mirror

13°23' Capricorn (House 5)

Reference

13° Capricorn

Swiss Ephemeris

Reference links

Astro-Databank

Reference person

David Bowie

Musician

A reliable modern chart that is repeated even in popular culture because the birth certificate is public.

Reliability: Rodden A

Birth Information

1947-01-08 • 09:00 (Europe/London)

Brixton, United Kingdom (51.46°, -0.12°)

Source: Astro-Databank, birth record (Rodden A)

Sun

Identity and core energy

Sun

Mirror

17°15' Capricorn (House 12)

Reference

17° Capricorn

Swiss Ephemeris

Moon

Emotions and inner world

Moon

Mirror

3°50' Leo (House 6)

Reference

3° Leo

Swiss Ephemeris

Ascendant

Outward expression

Ascendant

Mirror

4°10' Aquarius (House 1)

Reference

3° Aquarius

Swiss Ephemeris

Mercury

Mind and communication

Mercury

Mirror

8°12' Capricorn (House 11)

Reference

8° Capricorn

Swiss Ephemeris

Venus

Attraction and values

Venus

Mirror

2°09' Sagittarius (House 9)

Reference

2° Sagittarius

Swiss Ephemeris

Mars

Willpower and action

Mars

Mirror

16°44' Capricorn (House 12)

Reference

16° Capricorn

Swiss Ephemeris

Reference links

Astro-Databank

Reference person

Serena Williams

Tennis Player

A clean and traceable record for contemporary sky verifications as the current birth certificate was shared.

Reliability: Rodden AA

Birth Information

1981-09-26 • 20:28 (America/Detroit)

Saginaw, USA (43.42°, -83.95°)

Source: Astro-Databank, birth certificate (Rodden AA)

Sun

Identity and core energy

Sun

Mirror

3°49' Libra (House 6)

Reference

3° Libra

Swiss Ephemeris

Moon

Emotions and inner world

Moon

Mirror

20°24' Virgo (House 6)

Reference

20° Virgo

Swiss Ephemeris

Ascendant

Outward expression

Ascendant

Mirror

3°25' Taurus (House 1)

Reference

3° Taurus

Swiss Ephemeris

Mercury

Mind and communication

Mercury

Mirror

29°40' Libra (House 6)

Reference

29° Libra

Swiss Ephemeris

Venus

Attraction and values

Venus

Mirror

16°20' Scorpio (House 7)

Reference

16° Scorpio

Swiss Ephemeris

Mars

Willpower and action

Mars

Mirror

15°35' Leo (House 5)

Reference

15° Leo

Swiss Ephemeris

Reference links

Astro-Databank

You've seen the data, now it's your turn

Every chart runs through the same verified engine. Entering your date, time, and location will give you personally focused results in seconds. Try it out.

Create Your Chart

Transparency and Reliability in Sky Calculations

Every chart you open in Mirror is calculated from real sky data for that day and coordinates. It's based on astronomical measurements, not guesses.

NASA JPL HorizonsMinor Planet CenterGlobal astrology ephemerides

How Do We Verify?

We Compare with Reliable Astronomical Sources

We put every calculated degree side by side with NASA Horizons and MPC data; if we see a difference, we find the cause and don't show it to you without fixing it.

We Work Compatible with Globally Used Ephemerides

Tests we do with tools like Swiss Ephemeris and VSOP87 prove that the degrees and houses you see in Mirror match international tables.

We Provide a Transparent Process

If you wonder how we test, we share example tables, screenshots, and links; you can enter the same date-time-location and see the same result yourself.

Verify with your own data in seconds

Enter date, time, and location to get the planet placements Mirror calculates. Results come with reference links to NASA JPL Horizons and Swiss Ephemeris.

Note: You can enter coordinates manually, or select a city and use the Fetch Coordinates button below to fill latitude/longitude used for the calculation.

Reference person

Albert Einstein

Theoretical Physicist

One of our most frequently used records in scientific comparisons because the official birth certificate is archived.

Reliability: Rodden AA

Birth Information

1879-03-14 • 10:50 (Europe/Berlin)

Ulm, Germany (48.40°, 9.99°)

Sun

Identity and core energy

Sun

Mirror

23°29' Pisces (House 10)

Reference

23° Pisces

Swiss Ephemeris

Moon

Emotions and inner world

Moon

Mirror

14°08' Sagittarius (House 6)

Reference

14° Sagittarius

Swiss Ephemeris

Ascendant

Outward expression

Ascendant

Mirror

4°44' Cancer (House 1)

Reference

3° Cancer

Swiss Ephemeris

Note: LMT conversion ~1.5° deviation is normal

Mercury

Mind and communication

Mercury

Mirror

3°06' Aries (House 10)

Reference

3° Aries

Swiss Ephemeris

Venus

Attraction and values

Venus

Mirror

16°57' Aries (House 11)

Reference

16° Aries

Swiss Ephemeris

Mars

Willpower and action

Mars

Mirror

26°54' Capricorn (House 8)

Reference

26° Capricorn

Swiss Ephemeris

Reference links

Astro-Databank