Every ingress of the Sun and planets, chronologically, with the exact UTC instant. Retrograde re-entries are marked.
In 1904 the Sun and planets change signs 55 times. Outer-planet ingresses: Jupiter enters Aries on Mar 1, 1904, 03:00 UTC; Jupiter enters Taurus on Aug 8, 1904, 20:06 UTC; Jupiter enters Aries on Aug 31, 1904, 13:58 UTC (retrograde re-entry); Uranus enters Capricorn on Dec 20, 1904, 13:33 UTC.
| Instant (UTC) | Planet | From | Into |
|---|---|---|---|
| Jan 2, 1904, 09:24 UTC | ☿ Mercury | Capricorn | Aquarius |
| Jan 5, 1904, 03:43 UTC | ♀ Venus | Scorpio | Sagittarius |
| Jan 14, 1904, 03:47 UTC | ☿ Mercury ℞ | Aquarius | Capricorn |
| Jan 19, 1904, 15:50 UTC | ♂ Mars | Aquarius | Pisces |
| Jan 21, 1904, 10:58 UTC | ☉ Sun | Capricorn | Aquarius |
| Jan 30, 1904, 09:28 UTC | ♀ Venus | Sagittarius | Capricorn |
| Feb 15, 1904, 10:59 UTC | ☿ Mercury | Capricorn | Aquarius |
| Feb 20, 1904, 01:25 UTC | ☉ Sun | Aquarius | Pisces |
| Feb 24, 1904, 03:07 UTC | ♀ Venus | Capricorn | Aquarius |
| Feb 27, 1904, 03:12 UTC | ♂ Mars | Pisces | Aries |
| Mar 1, 1904, 03:00 UTC | ♃ Jupiter | Pisces | Aries |
| Mar 7, 1904, 08:05 UTC | ☿ Mercury | Aquarius | Pisces |
| Mar 19, 1904, 16:02 UTC | ♀ Venus | Aquarius | Pisces |
| Mar 21, 1904, 00:59 UTC | ☉ Sun | Pisces | Aries |
| Mar 23, 1904, 23:34 UTC | ☿ Mercury | Pisces | Aries |
| Apr 6, 1904, 18:05 UTC | ♂ Mars | Aries | Taurus |
| Apr 7, 1904, 19:13 UTC | ☿ Mercury | Aries | Taurus |
| Apr 13, 1904, 03:27 UTC | ♀ Venus | Pisces | Aries |
| Apr 20, 1904, 12:42 UTC | ☉ Sun | Aries | Taurus |
| May 7, 1904, 14:52 UTC | ♀ Venus | Aries | Taurus |
| May 18, 1904, 03:35 UTC | ♂ Mars | Taurus | Gemini |
| May 21, 1904, 12:29 UTC | ☉ Sun | Taurus | Gemini |
| Jun 1, 1904, 02:27 UTC | ♀ Venus | Taurus | Gemini |
| Jun 14, 1904, 06:23 UTC | ☿ Mercury | Taurus | Gemini |
| Jun 21, 1904, 20:51 UTC | ☉ Sun | Gemini | Cancer |
| Jun 25, 1904, 13:28 UTC | ♀ Venus | Gemini | Cancer |
| Jun 30, 1904, 14:55 UTC | ♂ Mars | Gemini | Cancer |
| Jul 1, 1904, 22:13 UTC | ☿ Mercury | Gemini | Cancer |
| Jul 16, 1904, 00:26 UTC | ☿ Mercury | Cancer | Leo |
| Jul 19, 1904, 23:01 UTC | ♀ Venus | Cancer | Leo |
| Jul 23, 1904, 07:49 UTC | ☉ Sun | Cancer | Leo |
| Aug 1, 1904, 13:25 UTC | ☿ Mercury | Leo | Virgo |
| Aug 8, 1904, 20:06 UTC | ♃ Jupiter | Aries | Taurus |
| Aug 13, 1904, 06:53 UTC | ♀ Venus | Leo | Virgo |
| Aug 15, 1904, 03:22 UTC | ♂ Mars | Cancer | Leo |
| Aug 23, 1904, 14:36 UTC | ☉ Sun | Leo | Virgo |
| Aug 28, 1904, 08:17 UTC | ☿ Mercury | Virgo | Libra |
| Aug 31, 1904, 13:58 UTC | ♃ Jupiter ℞ | Taurus | Aries |
| Sep 6, 1904, 13:50 UTC | ♀ Venus | Virgo | Libra |
| Sep 7, 1904, 20:25 UTC | ☿ Mercury ℞ | Libra | Virgo |
| Sep 23, 1904, 11:40 UTC | ☉ Sun | Virgo | Libra |
| Sep 30, 1904, 21:04 UTC | ♀ Venus | Libra | Scorpio |
| Oct 1, 1904, 13:51 UTC | ♂ Mars | Leo | Virgo |
| Oct 9, 1904, 01:51 UTC | ☿ Mercury | Virgo | Libra |
| Oct 23, 1904, 20:19 UTC | ☉ Sun | Libra | Scorpio |
| Oct 25, 1904, 05:36 UTC | ♀ Venus | Scorpio | Sagittarius |
| Oct 26, 1904, 20:15 UTC | ☿ Mercury | Libra | Scorpio |
| Nov 14, 1904, 13:47 UTC | ☿ Mercury | Scorpio | Sagittarius |
| Nov 18, 1904, 16:40 UTC | ♀ Venus | Sagittarius | Capricorn |
| Nov 20, 1904, 06:24 UTC | ♂ Mars | Virgo | Libra |
| Nov 22, 1904, 17:16 UTC | ☉ Sun | Scorpio | Sagittarius |
| Dec 4, 1904, 14:14 UTC | ☿ Mercury | Sagittarius | Capricorn |
| Dec 13, 1904, 09:08 UTC | ♀ Venus | Capricorn | Aquarius |
| Dec 20, 1904, 13:33 UTC | ♅ Uranus | Sagittarius | Capricorn |
| Dec 22, 1904, 06:14 UTC | ☉ Sun | Sagittarius | Capricorn |