Every ingress of the Sun and planets, chronologically, with the exact UTC instant. Retrograde re-entries are marked.
In 1980 the Sun and planets change signs 46 times. Outer-planet ingresses: Saturn enters Libra on Sep 21, 1980, 10:48 UTC; Jupiter enters Libra on Oct 27, 1980, 10:10 UTC.
| Instant (UTC) | Planet | From | Into |
|---|---|---|---|
| Jan 2, 1980, 08:03 UTC | ☿ Mercury | Sagittarius | Capricorn |
| Jan 16, 1980, 03:37 UTC | ♀ Venus | Aquarius | Pisces |
| Jan 20, 1980, 21:49 UTC | ☉ Sun | Capricorn | Aquarius |
| Jan 21, 1980, 02:18 UTC | ☿ Mercury | Capricorn | Aquarius |
| Feb 7, 1980, 08:07 UTC | ☿ Mercury | Aquarius | Pisces |
| Feb 9, 1980, 23:39 UTC | ♀ Venus | Pisces | Aries |
| Feb 19, 1980, 12:02 UTC | ☉ Sun | Aquarius | Pisces |
| Mar 6, 1980, 18:54 UTC | ♀ Venus | Aries | Taurus |
| Mar 11, 1980, 20:46 UTC | ♂ Mars ℞ | Virgo | Leo |
| Mar 20, 1980, 11:10 UTC | ☉ Sun | Pisces | Aries |
| Apr 3, 1980, 19:46 UTC | ♀ Venus | Taurus | Gemini |
| Apr 14, 1980, 15:58 UTC | ☿ Mercury | Pisces | Aries |
| Apr 19, 1980, 22:23 UTC | ☉ Sun | Aries | Taurus |
| May 2, 1980, 10:56 UTC | ☿ Mercury | Aries | Taurus |
| May 4, 1980, 02:27 UTC | ♂ Mars | Leo | Virgo |
| May 12, 1980, 20:53 UTC | ♀ Venus | Gemini | Cancer |
| May 16, 1980, 17:06 UTC | ☿ Mercury | Taurus | Gemini |
| May 20, 1980, 21:42 UTC | ☉ Sun | Taurus | Gemini |
| May 31, 1980, 22:05 UTC | ☿ Mercury | Gemini | Cancer |
| Jun 5, 1980, 05:44 UTC | ♀ Venus ℞ | Cancer | Gemini |
| Jun 21, 1980, 05:47 UTC | ☉ Sun | Gemini | Cancer |
| Jul 10, 1980, 17:59 UTC | ♂ Mars | Virgo | Libra |
| Jul 22, 1980, 16:42 UTC | ☉ Sun | Cancer | Leo |
| Aug 6, 1980, 14:25 UTC | ♀ Venus | Gemini | Cancer |
| Aug 9, 1980, 03:31 UTC | ☿ Mercury | Cancer | Leo |
| Aug 22, 1980, 23:41 UTC | ☉ Sun | Leo | Virgo |
| Aug 24, 1980, 18:47 UTC | ☿ Mercury | Leo | Virgo |
| Aug 29, 1980, 05:50 UTC | ♂ Mars | Libra | Scorpio |
| Sep 7, 1980, 17:57 UTC | ♀ Venus | Cancer | Leo |
| Sep 10, 1980, 02:00 UTC | ☿ Mercury | Virgo | Libra |
| Sep 21, 1980, 10:48 UTC | ♄ Saturn | Virgo | Libra |
| Sep 22, 1980, 21:09 UTC | ☉ Sun | Virgo | Libra |
| Sep 30, 1980, 01:16 UTC | ☿ Mercury | Libra | Scorpio |
| Oct 4, 1980, 23:07 UTC | ♀ Venus | Leo | Virgo |
| Oct 12, 1980, 06:26 UTC | ♂ Mars | Scorpio | Sagittarius |
| Oct 23, 1980, 06:17 UTC | ☉ Sun | Libra | Scorpio |
| Oct 27, 1980, 10:10 UTC | ♃ Jupiter | Virgo | Libra |
| Oct 30, 1980, 10:38 UTC | ♀ Venus | Virgo | Libra |
| Nov 22, 1980, 01:42 UTC | ♂ Mars | Sagittarius | Capricorn |
| Nov 22, 1980, 03:41 UTC | ☉ Sun | Scorpio | Sagittarius |
| Nov 24, 1980, 01:35 UTC | ♀ Venus | Libra | Scorpio |
| Dec 5, 1980, 19:45 UTC | ☿ Mercury | Scorpio | Sagittarius |
| Dec 18, 1980, 06:21 UTC | ♀ Venus | Scorpio | Sagittarius |
| Dec 21, 1980, 16:56 UTC | ☉ Sun | Sagittarius | Capricorn |
| Dec 25, 1980, 04:47 UTC | ☿ Mercury | Sagittarius | Capricorn |
| Dec 30, 1980, 22:30 UTC | ♂ Mars | Capricorn | Aquarius |