Open daily, 10am–5pm, Free

419 Great King Street Dunedin, New Zealand

Otago Museum is open in Level 1. We are using NZ Covid Tracer for contact tracing, please download, or use our Wi-Fi on arrival.

JULY (HŌNGONGOI) SKY GUIDE

1044px Rho Ophiuchi

Welcome to the Sky Guide, your monthly guide to what's happening in the heavens!
Check out the printable version here: Sky-Guide-July-2020.pdf

 

MOON MARAMA PHASES:

SUN  RISE / SUNSET

Phase

Full Moon

Third Quarter

New Moon

First Quarter

 

Date

Sunday, 5 July

Monday, 13 July

Tuesday, 21 July

Tuesday, 28 July 

 

 

Wednesday, 1 July

Wednesday, 15 July

Friday, 31 July

 Rise

8.20am

8.14am

7.58am

 

 

Set

5.03pm

5.13pm

5.30pm

 

Planets Whetū Ao:

 

   

Jupiter

Hine-i-tīweka  

1 July after 5.57pm 

15 July all night

31 July until 7.09am

In Sagittarius

Saturn

Pareārau 

1 July after 6.30pm 

15 July all night 

31 July until 7.34am

In Sagittarius

Mars

Matawhero

1 July after 11.58pm 

15 July after 11.45pm 

31 July after 11.21pm

In Pisces

Venus

Meremere-tū-ahiahi 

1 July after 5.28am

15 July after 5.00am

31 July after 4.53am

In Taurus

 

 

   

 

 

 

 

 

 

 

 

 

 

JULY (HŌNGONGOI) HIGHLIGHTS

 

Ophiuchus

The constellation Ophiuchus can be seen in the northeast sky this month. Ophiuchus is sometimes referred to as the 13th zodiac, as it is one of the constellations that crosses the ecliptic, which is the apparent path of the Sun across the sky. The zodiac constellations are defined as the constellations that we see the Sun pass through from our viewpoint here on Earth. Astrology tends to recognise only 12 zodiac constellations;, these 12 were identified over 2000 years ago. Since then the wobble of the Earth on its axis has meant that the position of the stars, as we see them, has changed ever so slightly. Now, the Sun also appears to pass through Ophiuchus on its journey across the sky, making him the 13th zodiac constellation.


There are many myths around who Ophiuchus is said to represent. In ancient Greek, the constellation was said to portray the god Apollo wrangling a huge snake. In Roman mythology, it was said that Ophiuchus represented Asclepius, the god of medicine. In this story, Asclepius figured out how to prevent death for humans. As the other Gods didn’t want the human race to become immortal, Asclepius was struck down with a bolt of lightning, but placed in the stars to honour his work.

 

Rho Ophiuchi Cloud Complex

Located within the constellation Ophiuchus is the Rho Ophiuchi cloud complex, pictured on the front cover. These beautiful, colourful clouds of cosmic gas and dust make up one of the closest star forming regions to our solar system, located around 460 light years from Earth. Regions such as this one are often referred to as ‘stellar nurseries’, as they are areas where new stars can be formed.

The cloud complex is roughly 3000 times as massive as the Sun. These interstellar clouds encompass emission nebula that are rich with glowing red hydrogen gas and blue reflection nebulas that are reflecting starlight from their surroundings, giving the complex its magnificent colours.

 

 

Satellites

The stars and planets are not the only things to spot in the night sky. While stars move across our sky very slowly, almost imperceptibly, another group of objects can be seen moving with much more speed – satellites. The first artificial satellite was launched into space in 1957 by the Soviet Union. Since then, about 8,900 satellites have been launched , though not all of these are currently operational.


Satellites are used for a range of different operations, many of which we rely on every day, from communications and GPS, to weather monitoring and researching outer space. While satellites do not produce light on their own, they can be most easily seen in the hours just after sunset and before sunrise, when they are able to reflect light from the Sun while it’s close to the horizon. A satellite passing across the sky, as it orbits Earth, will appear as a bright spot, like a star moving steadily through the sky for a few minutes.

 

Top image: Rho Ophiuchi - Wikimedia commons