Mercury square Neptune
Mercury and Neptune are 102.57° apart right now in the heliocentric frame — 12.57° from an exact 90° square. Measured at 2026-08-18 19:12 UTC.
- Separation now
- 102.57°
- Exact square
- 90.00°
- Distance from exact
- 12.57°outside the 2° orb
- Observer frame
- heliocentricHERO mode: solar
- Next exact
- 2026-10-02 21:59 UTCin 45 days
- Enters orb
- 2026-10-02 04:48 UTCwithin 2° of exact
- Leaves orb
- 2026-10-03 15:04 UTC34h 17m in orb
Mercury square Neptune sounds at 182.9 Hz in the left ear and 187.9 Hz in the right — a 5 Hz difference, the interval of perfect fourth. Free, no account. Headphones give you the binaural difference.
What this page measures
Horoscorpio reads the angle between Mercury and Neptune from precomputed ephemeris and times the whole passage — when the pair enters a 2° orb of the exact 90°, when it is exact, and when it leaves. Measured from the Sun. Heliocentric and geocentric are separate observer frames and are never combined.
The instrument is free to use and requires no account. It shows every aspect currently in orb across all three observer modes, updating on the minute.
Questions
Is Mercury square Neptune happening right now?
No. As measured at 2026-08-18 19:12 UTC, Mercury and Neptune are 102.57° apart in the heliocentric frame. That is 12.57° from an exact 90° square, outside the 2° orb, so the aspect is not live.
When is the next Mercury square Neptune?
The next exact square falls on 2026-10-02 21:59 UTC, in 45 days. The pair is inside the 2° orb from 2026-10-02 04:48 UTC to 2026-10-03 15:04 UTC. This time is computed from the ephemeris, not taken from the live episode register.
What is a square in astrology?
A square is an angular relationship of 90° between two bodies as measured along the ecliptic. Horoscorpio treats it as live only while the measured separation sits strictly inside 2° of that angle. The angle is a measurement; Horoscorpio makes no claim about what it causes.
Is this measured from the Earth or the Sun?
Measured from the Sun. Heliocentric and geocentric are separate observer frames and are never combined.
Other angles for Mercury–Neptune
- Mercury semi-sextile Neptune30°
- Mercury sextile Neptune60°
- Mercury trine Neptune120°
- Mercury quincunx Neptune150°
- Mercury opposition Neptune180°
The harmonic
Hear this aspect, free.
The player above voices Mercury square Neptune in your browser, with no membership and no account — 182.9 Hz to the left ear and 187.9 Hz to the right, a 5 Hz difference. Stereo headphones give you the binaural difference between them; through speakers the two tones fold into one centred room pulse, and we make no binaural claim for that. Membership adds SEVEN FORCE Sleep Harmonics — the seven forces of your own chart sequenced as an array, with timed Sleep envelopes at one, six and nine hours.
Planetary geometry is measured from the live instrument. Horoscorpio states angles and times; it is not prophecy, and it is not medical, financial or legal advice. Times are UTC. Live in-orb state is read from the Horoscorpio episode register; the next exact time is computed from the ephemeris.