Close approach of Moon and Uranus

Moon and Uranus will make a close approach, passing within 1º14' of each other in the sky.

Visibility: Visible with a small telescope

Observing time:

• Mexico City: 20:35 - 07:18
• Bogota: 19:10 - 05:26
• Madrid: 20:45 - 08:16

Draconid meteor shower 2021

The Draconid meteor shower 2021 will be active from 6 to October 10th, producing its peak rate of meteors around 8. It will be best seen around the constellation of Draco.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: dusk - 01:57
• Bogotá: dusk - 22:46
• Madrid: All night

Moon at perihelion

Moon will reach the closest point along its orbit to the Sun, at a distance of 0.9970 AU.

Visibility: Not observable

Orionid meteor shower 2021

The Orionid meteor shower 2021 will be active from October 2nd to November 7, producing its peak rate of meteors around October 21. It will be best seen around the constellation of Orion.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 23:31 - 07:10
• Bogota: 22:08 - 05:18
• Madrid: 23:37 - 08:05

The Moon at perigee

The Moon will reach the closest point along its orbit to the Earth and will appear slightly larger than at other times.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 12:27
• Bogota: 12:27
• Madrid: 19:27

136108 Haumea at solar conjunction

136108 Haumea will pass very close to the Sun in the sky since it will be in the opposite side of the Sun. At closest approach, it will appear at a separation of only 27º from the Sun.

Visibility: Not observable

Moon at apogee

The Moon will reach the furthest point along its orbit to the Earth and will appear slightly smaller than at other times.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 10:28
• Bogota: 10:28
• Madrid: 17:28

Mercury at greatest elongation west

Mercury will reach its greatest separation from the Sun in its October November morning apparition. It will be shining brightly at mag -0.6.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 06:16 - 07:33
• Bogota: 04:32 - 05:41
• Madrid: 07:01 - 08:36 (October 25)

Mercury at highest altitude in morning sky

Mercury will reach its highest point in the sky in its October - November 2021 morning apparition. It will be shining brightly at mag -0.6.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 06:16 - 07:33
• Bogotá: 04:33 - 05:40 (October 26)
• Madrid: 07:01 - 08:36 (October 25)

Full Moon

The Moon will be almost exactly on the other side of the Sun and will appear fully illuminated.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 18:51 - 07:33
• Bogota: 17:12 - 05:42
• Madrid: 19:15 - 08:14

Leonis Minorid meteor shower 2021

The Leonis Minorid meteor shower 2021 will be active from 19 to October 27th, producing its peak rate of meteors around 24. It will be best seen around the constellation of Leo Minor.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 03:08 - 07:09
• Bogota: 02:15 - 05:21
• Madrid: 02:09 - 08:08

Venus at dichotomy

Venus will reach half phase in its 2021 - 2022 evening apparition. It will be shining brightly at mag -4.4.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 19:36 - 21:23
• Bogota: 17:40 - 20:44
• Madrid: 19:19 - 21:32

Mercury at solar inferior conjunction

Mercury will pass very close to the Sun in the sky as its orbit carries it between the Sun and Earth. At closest approach, it will appear at a separation of only 1º53' from the Sun.

Visibility: Not observable

Eris reaches opposition

Dwarf planet 136199 Eris will reach opposition and will be visible for much of the night, when it lies opposite to the Sun in the sky in the constellation of Cetus.

Visibility: Visible with a 4 inch telescope

Observing time:

• Mexico City: 21:17 - 06:06
• Bogota: 19:26 - 04:29
• Madrid: 22:21 - 06:15

Conjunction of Moon and Venus

Moon and Venus will share the same right ascension, with Moon passing 2º51' to the north of Venus.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 19:33 - 21:49
• Bogota: 18:00 - 20:35
• Madrid: 20:04 - 21:39

Conjunction of Moon and Jupiter

Moon and Jupiter will share the same right ascension, with Moon passing 4º08' to the south of Jupiter.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 19:29 - 02:41
• Bogota: 17:57 - 01:20
• Madrid: 19:52 - 02:36

Close approach of Moon and Venus

Moon and Venus will make a close approach, passing within 2º44' of each other in the sky.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 19:33 - 21:49
• Bogota: 18:00 - 20:36
• Madrid: 20:04 - 21:39

Close approach of Moon and Jupiter

Moon and Jupiter will make a close approach, passing within 3º56' of each other in the sky.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 19:29 - 02:41
• Bogota: 17:57 - 01:20
• Madrid: 19:52 - 02:36

Jupiter ends retrograde motion

Jupiter will reach the end of its retrograde motion, ending its westward movement through the constellations and returning to more usual eastward motion instead.
This reversal of direction is a phenomenon cuased the change of perspective due to Earth's and the outer planet's position. It occurs a few months after they pass opposition.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 19:28 - 02:29
• Bogota: 17:55 - 01:08
• Madrid: 19:50 - 02:24

Triangulum Galaxy well placed

The Triangulum Galaxy (M33) will be well placed, high in the sky. It will reach its highest point in the sky in the constellation of Triangulum at around midnight local time.

Visibility: Visible with binoculars

Observing time:

• Mexico City: 20:32 - 06:37
• Bogota: 19:21 - 04:23
• Madrid: 20:40 - 07:20

Moon at Last Quarter

The Moon will pass last quarter phase, during this time it appears almost exactly half illuminated.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 01:06 - 07:20
• Bogota: 23:53 - 05:27
• Madrid: 00:54 - 08:22

ε-Geminid meteor shower 2021

The ε-Geminid meteor shower 2021 will be active from 14 to October 27th, producing its peak rate of meteors around 18. It will be best seen around the constellation of Gemini.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 23:52 - 07:08
• Bogota: 22:44 - 05:19
• Madrid: 23:31 - 08:02

Mercury at perihelion

Mercury will reach the closest point along its orbit to the Sun, at a distance of 0.31 AU.

Visibility: Not observable

NGC 884 well placed

The open star cluster NGC 884 will be well placed, high in the sky. It will reach its highest point in the sky in the constellation of Perseus at around midnight local time.

Visibility: Visible with binoculars

Observing time:

• Mexico City: 20:20 - 06:40
• Bogota: 20:12 - 03:35
• Madrid: 20:27 - 07:35

Moon at aphelion

Moon will reach the furthest point along its orbit to the Sun, at a distance of 0.9986 AU

Visibility: Not observable

Southern Taurid meteor shower 2021

The Southern Taurid meteor shower 2021 will be active from September 10th to November 20th, producing its peak rate of meteors around October 10th. It will be best seen around the constellation of Taurus.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 20:13 - 07:08
• Bogota: 18:43 - 05:20
• Madrid: 20:35 - 07:51

M32 well placed

Galaxy M32 will be well placed, high in the sky. It will reach its highest point in the sky in the constellation of Andromeda at around midnight local time.

Visibility: Visible with a 4 inch telescope

Observing time:

• Mexico City: 20:25 - 06:34
• Bogota: 19:35 - 04:12
• Madrid: 21:00 - 07:08

Andromeda Galaxy well placed

The Andromeda Galaxy (M31) will be well placed, high in the sky. It will reach its highest point in the sky in the constellation of Andromeda at around midnight local time.

Visibility: Visible with a 4 inch telescope

Observing time:

• Mexico City: 20:18 - 06:34
• Bogota: 19:07 - 04:40
• Madrid: 21:00 - 07:08

New Moon

The Moon will pass close to the Sun and become lost in the its glare for a few days.

Visibility: Not observable

Saturn ends retrograde motion

Saturn will reach the end of its retrograde motion, ending its westward movement through the constellations and returning to more usual eastward motion instead.
This reversal of direction is a phenomenon cuased the change of perspective due to Earth's and the outer planet's position. It occurs a few months after they pass opposition.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 19:44 - 01:37
• Bogota: 18:08 - 00:22
• Madrid: 20:14 - 01:15

δ-Aurigid meteor shower 2021

The δ-Aurigid meteor shower 2021 will be active from 10 to October 18, producing its peak rate of meteors around eleven. It will be best seen around the constellation of Charioteer.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 22:29 - 07:08
• Bogota: 21:51 - 05:19
• Madrid: 20:44 - 07:54

Venus at aphelion

Venus will reach the furthest point along its orbit to the Sun, at a distance of 0.73 AU

Visibility: Not observable

NGC 326 well placed

The globular cluster NGC 326 will be well placed, high in the sky. It will reach its highest point in the sky in the constellation of Tucana at around midnight local time.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: Not observable
• Bogotá: Not observable
• Madrid: Not observable

Mars at solar conjunction

Mars will pass very close to the Sun in the sky since it will be in the opposite side of the Sun. At closest approach, it will appear at a separation of only 0º39' from the Sun.

Visibility: Not observable

Moon at First Quarter

The Moon will pass first quarter phase, during this time it appears almost exactly half illuminated.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 19:31 - 00:22
• Bogota: 17:58 - 23:15
• Madrid: 19:57 - 23:41

Venus at greatest elongation east

Venus will reach its greatest separation from the Sun in its 2021 - 2022 evening apparition. It will be shining brightly at mag -4.4.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 19:36 - 21:23
• Bogota: 17:40 - 20:44
• Madrid: 19:12 - 21:32

Asteroid 40 Harmonia reaches opposition

Asteroid 40 Harmonia will reach opposition and will be visible for much of the night, when it lies opposite to the Sun in the sky in the constellation of Cetus.

Visibility: Visible with a 4 inch telescope

Observing time:

• Mexico City: 21:21 - 06:02
• Bogota: 19:31 - 04:32
• Madrid: 22:31 - 06:05

The Small Magellanic Cloud well placed

The Small Magellanic Cloud (SMC) will be well placed, high in the sky. It will reach its highest point in the sky in the constellation of Tucana at around midnight local time.

Visibility: Not observable

NGC 869 well placed

The open star cluster NGC 869 will be well placed, high in the sky. It will reach its highest point in the sky in the constellation of Perseus at around midnight local time.

Visibility: Visible with binoculars

Observing time:

• Mexico City: 20:00 - 06:40
• Bogota: 19:45 - 04:03
• Madrid: 20:27 - 07:31

Close approach of Moon and Saturn

Moon and Saturn will make a close approach, passing within 3º50' of each other in the sky.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 19:30 - 01:33
• Bogota: 17:57 - 00:17
• Madrid: 19:56 - 01:20

October Camelopardalid meteor shower 2021

The October Camelopardalid meteor shower 2021 will be active from 5th to October 6th, producing its peak rate of meteors around 5th. It will be best seen around the constellation of Camelopardalis.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: all night
• Bogota: 02:05 - 05:23
• Madrid: all night

NGC 300 well placed

The spiral galaxy NGC 300 will be well placed, high in the sky. It will reach its highest point in the sky in the constellation of Sculptor at around midnight local time.

Visibility: Visible with a 4 inch telescope

Observing time:

• Mexico City: 22:57 - 04:11
• Bogota: 20:04 - 03:44
• Madrid: Not observable

M110 well placed

Galaxy M110 will be well placed, high in the sky. It will reach its highest point in the sky in the constellation of Andromeda at around midnight local time.

Visibility: Visible with a 4 inch telescope

Observing time:

• Mexico City: 20:28 - 06:35
• Bogota: 19:35 - 04:11
• Madrid: 21:01 - 07:05

Conjunction of Moon and Saturn

Moon and Saturn will share the same right ascension, with Moon passing 3º56' to the south of Saturn.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: 19:30 - 01:33
• Bogota: 17:57 - 00:17
• Madrid: 19:56 - 01:20

Mercury at dichotomy

Mercury will reach half phase in its October - November 2021 morning apparition. It will be shining brightly at mag -0.5.

Visibility: Visible to the naked eye

Observing time:

• Mexico City: Not observable
• Bogota: 04:32 - 05:41
• Madrid: 07:01 - 08:34 (October 24)

Fornax Galaxy well placed

The dwarf spheroidal galaxy Fornax will be well placed, high in the sky. It will reach its highest point in the sky in the constellation of Fornax at around midnight local time.

Visibility: Visible with a large telescope

Observing time:

• Mexico City: 22:46 - 03:35
• Bogota: 19:59 - 03:53
• Madrid: Not observable

Sculptor's Galaxy well placed

The Sculptor's Galaxy (NGC 253) will be well placed, high in the sky. It will reach its highest point in the sky in the constellation of Sculptor at around midnight local time.

Visibility: Visible with a small telescope

Observing time:

• Mexico City: 22:05 - 05:06
• Bogota: 19:39 - 04:03
• Madrid: 01:01 - 03:32