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Mercury retrograde widget: a live yes or no

The answer in one word, the date it changes, and whether the planet is still inside the shadow period either side of it.

How do I add a Mercury retrograde widget to my site?

The widget answers “is Mercury in retrograde right now” with YES or NO and the exact date the answer changes. Stations are calculated from planetary geometry rather than copied from a list, and the frame updates itself. It is free and needs no account.

Preview and embed code

320 × 280 pixels by default. Change the numbers in the code and the widget re-lays itself out.

Copy this

Paste it into a WordPress Custom HTML block, a Wix or Squarespace Embed element, a Tilda HTML block, or straight into a template. Nothing else is needed.

What the frame shows

Everything in it is calculated.

  • YES or NO, large enough to read at a glance
  • The date the current window ends, or the date the next one opens
  • A countdown in days
  • The pre- and post-retrograde shadow, which most published date lists leave out

Who puts this on a page

Not only astrology sites.

  • News, culture and humour sites running the recurring joke
  • Podcasts and newsletters with a standing sidebar
  • Productivity, tech and startup blogs that reference it ironically
  • Astrology sites that want the date without maintaining it

Options

Everything you can change.

All of it lives in the URL inside the code you copied, so there is nothing to configure anywhere else.

WhatHowValues
Theme Add ?theme= to the frame address, or use the buttons above before copying. auto, light, dark
Size Change width and height in the code. The widget re-lays itself out rather than cropping. Any. Default 320 × 280
Attribution The link under the frame is the licence condition. Style it to match your site, but keep it visible. Required

The rest of the set

Five more, same terms.

Every widget on this site is free, self-updating and pasted the same way.

Moon phase Tonight’s phase, how much of the disc is lit, the sign the Moon is travelling through and the date of the next full Moon. Daily horoscope Today’s reading for any sign, with a row of twelve glyphs your visitors can switch between without leaving your page. Tarot card of the day One painted card a day, the same card for every visitor, with its upright meaning in a sentence. Zodiac date check A visitor picks their birthday and the widget says whether a fixed zodiac date table can actually settle their Sun sign. Sun, Moon and Rising Three fields — date, time and city — and the widget returns the visitor’s Sun, Moon and rising sign, calculated properly.

Clear answers

Frequently asked questions

How do I add a Mercury retrograde widget to my site?
Copy the HTML from this page and paste it into any HTML or embed block on your site. The widget then answers the question on its own, for every visitor, on every day, without you editing anything.
Where do the retrograde dates come from?
They are solved from the apparent motion of Mercury in our own ephemeris: the station dates are found by locating the moment the planet’s apparent longitude reverses, not by copying a published table. The shadow dates are found the same way, by solving for the degrees the planet crosses three times.
Is the widget free?
Yes, for personal and commercial sites, with no account, key or request limit. Keep the attribution link that comes with the code and you are done.
What is the retrograde shadow the widget shows?
The shadow is the arc Mercury crosses three times — once before the station, once backwards, once again afterwards. It is roughly twice as long as the retrograde itself, which is why the period people notice lasts far longer than the dates usually published.

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