Logo_EN
Logo_EN
Logo_EN
Logo_EN

Astronomical Ephemeris – September – 2021

Astronomical Ephemeris – September – 2021

efemerides-astronomicas-setembro-2021-desk
efemerides-astronomicas-setembro-2021-desk

In September, five events, observable in both the southern and northern hemispheres without the help of astronomical devices, show us, once again, how the union and composition existing between the celestial bodies, through the forces of nature, maintains the balance and evolution of the cosmos.

Moon phases

September 6 – New Moon

September 13 – First Quarter

September 20 – Full Moon

September 28 – Last Quarter

Conjunctions in September

In September, our satellite, the Moon, repeating the August performance, will again form conjunction with Venus, Saturn and Jupiter, on the 9, 16 and 18, respectively.

It’s worth remembering that in astronomical terms the conjunction phenomenon occurs when two or more celestial bodies appear to be very close to each other from the perspective of observation here on Earth.

September 9

Conjunction between the Moon and Venus

On that day, the Moon will pass at 4º4’ north of Venus around 18:12 (Brasilia -3UTC) forming the conjunction. The pair will be approximately 37° above the western horizon, both in the constellation Virgo. After about 3 hours they will sink towards the horizon.

The Moon will be at magnitude -10.4 brightness, but will not be visible as it’s in the new phase, and Venus at magnitude -4.1.

September 16

Conjunction between the Moon and Saturn

On the 16th, when the Moon and Saturn approach, passing 3°40’ of each other, they will form the conjunction.

This will occur from 18:17 (Brasilia -3UTC) when the pair is 52º above its eastern horizon, both in the constellation Capricorn. They will reach their highest point in the sky, about 85º above the horizon, around 9 pm (Brasilia -3UTC). They will remain observable until 2:56 am (Brasília -3UTC) on the 17th.

The Moon will be at -12.5 magnitude brightness and Saturn at 0.2 magnitude.

September 18

Conjunction between the Moon and Jupiter

The Moon and Jupiter, when approaching, passing at 3º45’ of each other, will constitute the conjunction phenomenon, at approximately 18:16 (Brasilia -3UTC) on September 18.

At this point, they will be 36° above the eastern horizon, both in the constellation Capricorn. Around 9:58 pm they will reach their highest point in the sky, 81º above the horizon, remaining visible until approximately 3:49 am (Brasilia -3UTC) on the 19.

The Moon will be at magnitude -12.6 brightness and Jupiter at magnitude -2.8.

The three conjunctions are observable with the naked eye or through binoculars, but will not fit within a telescope’s field of view.

Important: It’s noteworthy that the indications of cardinal points and angles, in relation to the horizon line, vary according to the geographic coordinates in which the observer is located. To make it easier to locate objects in the firmament, use the constellations as a reference.

September 14

Maximum Elongation of Mercury

Although it can be seen with the naked eye from here on Earth, Mercury is difficult to observe as it’s the smallest of the eight planets that make up the solar system and has the closest orbit to the Sun. So, to better observe it, you will need to be at an angular distance of more than 12° from the Sun, and it also has to be early morning or late afternoon, so the sun’s luminosity won’t dazzle you.

This makes September 14 an ideal day for observing Mercury, when it will be at an angular distance of 26.8º east of the Sun in the early evening, shining at a magnitude of 0.1, which means that it will be at maximum elongation to the east.

The angular altitude of Mercury, at this time, in relation to the horizon line, will vary according to the geographic location of the observer. In São Paulo, Brazil, for example, it will reach 25º.

To observe it, look towards the western horizon after sunset, towards the constellation Virgo, between 6:30 pm and 7:20 pm, approximately. (Brasilia time -3UTC).

Image: Stellarium Simulation
Image: Google Free Imagem

September 22

Spring Equinox in the Southern Hemisphere and Autumn in the Northern Hemisphere

The combination of the 23º27′ angle of inclination of the Earth in relation to its axis with its translation movement – orbit around the Sun – results in a difference in the incidence of solar rays in its hemispheres, except for two days in the year, one in March and the other in September. On these days, the Earth’s poles are not inclined in relation to the Sun and the sun’s rays fall on the Equator, making both hemispheres equally illuminated and day and night having the same duration, 12 hours.

These two moments of equal illumination in both hemispheres are called equinoxes (a word that comes from the Latin aequus (equal) and nox (night)), and mark the beginning of the spring and autumn seasons.

On September 22, we will have the spring equinox in the southern hemisphere and autumn in the northern hemisphere.

Estimating the distances of objects in the sky

For a better understanding of astronomical phenomena, it is important to understand the measurement system of apparent size and distance in degrees, minutes and seconds…

Angular measurements, in degrees, minutes and seconds, allow us to calculate the size and apparent distances of celestial bodies in the cosmos.

Assuming that the Earth and the celestial dome are divided into 360 parts or degrees, we can estimate the distances and sizes of celestial bodies using just our hands, since the little finger (pinky) corresponds to an apparent distance or size of 1 degree in the celestial dome.

The images will illustrate and show you how you can make use of this system.

First, position yourself. And then use your hand, following the convention:

Sources: jpl.nasa.gov/calendar / solarsystem.nasa.gov / in-the-sky.org / Stellarium.org / rmg.co.uk / earthsky.org / space.com / derekscope.co.uk / planetary ephemeris – Jet Propulsion Laboratory (JPL)

Astronomical ephemerides is a monthly calendar prepared by the Astronomy Sector, which is one of the 12 that make up the PRÓ-VIDA Laboratory Department. In the department, studies, research and scientific experiments related to various themes are developed, as well as field activities and lectures.

Astronomical ephemerides is a monthly calendar prepared by the Astronomy Sector, which is one of the 12 that make up the PRÓ-VIDA Laboratory Department. In the department, studies, research and scientific experiments related to various themes are developed, as well as field activities and lectures.

Our Movement

Our Movement

See more

Related articles

error: Conteúdo reservado ao Site da PRÓ-VIDA.

SEG    DOM

07-13

FEV    FEV

Online

Settimana di Basico

IT

Será transmitido nos idiomas e horários locais:

ITALIANO - COM INTERAÇÃO

Segunda a sexta-feira

às 21h*

Sábado

às 14h30*

Domingo

às 10h00*

Fuso (UTC+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna

*A atividade tem duração aproximada de 3 horas.

Para saber como participar, clique abaixo.

*Para repetição oficial, participantes que estão retornando ou em R.A., em breve mais informações.

SEG    SEX

25-29

OUT    OUT

Online

Semana de Avançado 1

PT

Será transmitido nos idiomas e horários locais:

PORTUGUÊS - COM INTERAÇÃO

Segunda a sexta-feira

às 20h30*

Hora de São Paulo

*A atividade tem duração aproximada de 3 horas.

Para saber como participar, clique abaixo.

Regras de conduta para prevenção da COVID-19

Uso de Máscaras

Cobrindo a boca e o nariz. Usar o tempo todo.
Evitar tocar a boca, o nariz e os olhos.

Distanciamento

Mínimo de 2 metros

Mãos

Lavar frequentemente ou higienizar com álcool em gel.

Etiqueta Respiratória

Ao espirrar ou tossir, proteger a boca e o nariz com o cotovelo, ou usar lenço descartável.

Sintomas

Se apresentar sintomas, ficar em casa e buscar atendimento médico.

Fones de ouvido homologados

Marca

Modelo

Tipo

Bose

Quiet Comfort 35 Stereo

USB e Bluetooth

Dell

Pro Stereo Headset UC150

USB

Jabra

BLZ 2400 II

USB

Jabra

Evolve 20 MS

USB

Jabra

Evolve 75

USB e Bluetooth

Jabra

UC Voice 550a MS Mono

USB

JBL

Everest Elite 750NC Stereo

Bluetooth

Logitech

Headset H390

USB

Logitech

Stereo H650e

USB

Microsoft

LifeChat LX-3000

USB

Microsoft

LifeChat LX-6000

USB

Plantronics

Blackwire 320

USB

Plantronics

Blackwire 3220 Series

USB

Plantronics

Blackwire C220

USB

Plantronics

Audio 628 USB

USB

Samsung

USBC Headset

USB

Sony

WH-CH700N

USB

Sony

Headset Pulse 7.1

USB

Sony

WH-XB900N

Bluetooth

Atualização: 11.06.2021

Requisitos técnicos indispensáveis

Gostaríamos de informar que, para a participação no Básico on-line, são indispensáveis os seguintes requisitos mínimos:

Computador (Windows/Mac)

Computador com câmera integrada ou conectada por entrada USB.

As atividades não poderão ser assistidas por nenhum outro dispositivo, tais como celulares, smartphones e tablets ou computadores com outros sistemas operacionais.

Especificações e Sistema Operacional

• Processador: Intel Core i3, i5 e i7 – 3100 Series , ou superior.

• Memória RAM: 4GB, ou superior.

• Sistema Operacional:

• Windows 7 com todas as atualizações, ou versão superior (somente 64 bits).

• MacOS 10.15 Catalina, ou versão superior.

Verifique as configurações de seu computador Windows clicando aqui.

Como verificar suas especificações no Mac? Clique aqui.

Fones de ouvido com microfone (headset)

Modelos homologados para uso com nossa plataforma.

Consulte a lista de headsets homologados:

Internet

Banda larga com conexão estável, com no mínimo 10MB de download e 4MB de upload.

Como verificar sua banda de internet? Clique aqui para testa-la.

* Os requisitos técnicos poderão ser atualizados. Acompanhe aqui eventuais alterações.

SEG    DOM

19-25

JUL    JUL

Online

Semana de Básico

PT

Será transmitido nos idiomas e horários locais:

PORTUGUÊS - COM INTERAÇÃO

Segunda a sexta-feira

20h30 às 23h30

Sábado

14h30 às 17h30*

Domingo

10h00 às 12h00*

Hora de São Paulo

*Horários de término aproximados.

As vagas para essa atividade foram preenchidas. Caso queira ser avisado quando uma nova semana for agendada, clique aqui.

SEG    DOM

27-03

SET    OUT

Online

Semana de Básico

PT

Será transmitido nos idiomas e horários locais:

PORTUGUÊS - COM INTERAÇÃO

Segunda a sexta-feira

às 20h30*

Sábado

às 14h30*

Domingo

às 10h00*

Hora de São Paulo

*A atividade tem duração aproximada de 2h30.

Para saber como participar, clique em um dos links abaixo:

1 – Novo Participante.
2- Repetição oficial, participantes que estão retornando ou em R.A.

SEG    DOM

08-14

NOV    NOV

Online

Semana de Básico

PT

Será transmitido nos idiomas e horários locais:

PORTUGUÊS - COM INTERAÇÃO

Segunda a sexta-feira

às 20h30*

Sábado

às 14h30*

Domingo

às 10h00*

Hora de São Paulo

*A atividade tem duração aproximada de 3 horas.

Para saber como participar, clique abaixo.

*Para repetição oficial, participantes que estão retornando ou em R.A., em breve mais informações.

Requisitos técnicos indispensáveis

Veja no vídeo abaixo as informações:

Computador (Windows/Mac)

Computador com câmera integrada ou conectada por entrada USB.

As atividades não poderão ser assistidas por nenhum outro dispositivo, tais como celulares, smartphones e tablets ou computadores com outros sistemas operacionais.

Especificações e Sistema Operacional

• Processador: Intel Core i3, i5 e i7 – 3100 Series , ou superior.

• Memória RAM: 4GB, ou superior.

• Sistema Operacional:

• Windows 7 com todas as atualizações, ou versão superior (somente 64 bits).

• MacOS 10.15 Catalina, ou versão superior.

Verifique as configurações de seu computador Windows clicando aqui.

Como verificar suas especificações no Mac? Clique aqui.

Fones de ouvido com microfone (headset)

Modelos homologados para uso com nossa plataforma.

Consulte a lista de headsets homologados:

Internet

Banda larga com conexão estável, com no mínimo 10MB de download e 4MB de upload.

Como verificar sua banda de internet? Clique aqui para testa-la.

* Os requisitos técnicos poderão ser atualizados. Acompanhe aqui eventuais alterações.

MON    SUN

31-06

JAN    FEV

Online

Basic Week

EN

It will be broadcast in local languages ​​and times:

ENGLISH - WITH INTERACTION

Monday to Friday

at 20:30*

Saturday

at 14:30*

Sunday

at 10:00*

Time Zone: (UTC-05:00) Eastern Time (US & Canada)

*The activity lasts approximately 3 hours.

To find out how to participate, click below.

No entries will be made on the weekend before the activity, or the week it takes place.

MON    FRI

06-10

DEC    DEC

Online

Semana de Introdução

PT

It will be broadcast in local languages ​​and times:

PORTUGUESE - WITH INTERACTION

Monday to Friday

at 20:30*

Time Zone: (UTC-03:00) Brasilia

*The activity lasts approximately 3 hours.

To find out how to participate, click below.

No entries will be made on the weekend before the activity, or the week it takes place.

SEG    SEX

22-26

NOV    NOV

Online

Semana de Avançado 1

PT

Será transmitido nos idiomas e horários locais:

PORTUGUÊS - COM INTERAÇÃO

Segunda a sexta-feira

às 20h30*

Hora de São Paulo

*A atividade tem duração aproximada de 3 horas.

Para saber como participar, clique abaixo.

MON    SUN

17-23

JAN    JAN

Online

Semana de Básico

PT

It will be broadcast in local languages ​​and times:

PORTUGUESE - WITH INTERACTION

Monday to Friday

at 20:30*

Saturday

at 14:30*

Sunday

at 10:00*

Time Zone: (UTC-03:00) Brasilia

*The activity lasts approximately 3 hours.

To find out how to participate, click below.

No entries will be made on the weekend before the activity, or the week it takes place.

*Para repetição oficial, participantes que estão retornando ou em R.A., em breve mais informações.

MON    SUN

24-30

JAN    FEB

Online

Semana de Básico

ES

It will be broadcast in local languages ​​and times:

SPANISH - WITH INTERACTION

Monday to Friday

at 21:00*

Saturday

at 14:30*

Sunday

at 10:00*

Time Zone: (UTC-03:00) Buenos Aires

*The activity lasts approximately 3 hours.

To find out how to participate, click below.

No entries will be made on the weekend before the activity, or the week it takes place.

*Para repetição oficial, participantes que estão retornando ou em R.A., em breve mais informações.

MON    SUN

24-30

JAN    JAN

Online

Semana de Básico

PT

It will be broadcast in local languages ​​and times:

PORTUGUESE - WITH INTERACTION

Monday to Friday

at 21:00*

Saturday

at 14:30*

Sunday

at 10:00*

Time zone (UTC) Dublin, Edinburgh, Lisbon

*The activity lasts approximately 3 hours.

To find out how to participate, click below.

No entries will be made on the weekend before the activity, or the week it takes place.

*Para repetição oficial, participantes que estão retornando ou em R.A., em breve mais informações.

MON    SUN

31-06

JAN    FEB

Online

Semana de Básico

ES

It will be broadcast in local languages ​​and times:

SPANISH - WITH INTERACTION

Monday to Friday

at 21:00*

Saturday

at 14:30*

Sunday

at 10:00*

Time Zone: (UTC + 01:00) Brussels, Copenhagen, Madrid, Paris

*The activity lasts approximately 3 hours.

To find out how to participate, click below.

No entries will be made on the weekend before the activity, or the week it takes place.

*Para repetição oficial, participantes que estão retornando ou em R.A., em breve mais informações.