SkyEye

January 2014

Welcome to SkyEye, your guide to this month's celestial events.

The Calendar

Date Event
1 Wednesday New Moon at perigee: expect very high tides
2 Thursday
3 Friday Mars at west quadrature
The waxing crescent Moon does not interfere with the Quadrantids. The peak may occur at approximately 19:30 UT but some calculations suggest it may happen as early as 14:00 UT.
4 Saturday Earth at perihelion
5 Sunday Jupiter at opposition
6 Monday
7 Tuesday
8 Wednesday First Quarter Moon
9 Thursday
10 Friday
11 Saturday Venus at inferior conjunction
12 Sunday
13 Monday
14 Tuesday
15 Wednesday
16 Thursday Full Moon at apogee
17 Friday
18 Saturday
19 Sunday
20 Monday
21 Tuesday
22 Wednesday
23 Thursday
24 Friday Last Quarter Moon
25 Saturday Moon occults Saturn: visible from New Zealand and the south Pacific, and beginning around 11:50 UT.
26 Sunday
27 Monday
28 Tuesday
29 Wednesday
30 Thursday New Moon at perigee: expect very high tides. The second Full Moon in a calendar month is popularly known as a 'Blue Moon', but what do you call the second New Moon in a calendar month?
31 Friday Mercury at greatest elongation east

The Solar System

The word planet is derived from the Greek word for 'wanderer'. Unlike the background stars, planets seem to move around the sky, keeping mostly to a narrow track called the ecliptic, the path of the Sun across the stars. Dwarf planets and small solar-system bodies, including comets, are not so constrained, often moving far above or below the ecliptic.

Sun SagittariusCapricornus

The Earth makes its annual closest approach to the Sun on 4 January. The date of perihelion can range from New Year's Day to 5 January.

Mercury SagittariusCapricornusAquarius

At superior conjunction late last month, this elusive litte planet emerges from the Sun's glare in the west after sunset. It gets easier to spot later in the month as it climbs higher and higher above the horizon. It reaches greatest elongation east on the last day of the month.

Venus SagittariusCapricornusScutum

The evening star falls towards the horizon, disappearing early in the month and reaching inferior conjunction on 11 January. It reappears in the east before sunrise late in the month.

Mars Virgo

Last year was a fairly miserable year to observe the red planet but 2014 promises to be better. At west quadrature on 3 January, Mars now rises before midnight.

Jupiter Gemini

The largest planet in the solar system is at opposition on 5 January, making it visible throughout the night.

Saturn Libra

The ringed planet is a morning sky object so you will have to stay up very late or get up very early to spot it this month. On 25 January the Moon occults Saturn.

Uranus Pisces

This ice giant was at east quadrature near the end of last month and sets by late evening.

Neptune Aquarius

A small telescope is necessary to view the most distant planet in the solar system. However, with solar conjunction approaching next month, it may be too close to the Sun to easily observe.

The Celestial Sphere

Constellations are patterns of stars in the sky. The International Astronomical Union recognises 88 different constellations. The brightest stars as seen from the Earth are easy to spot but do you know their proper names? With a set of binoculars you can look for fainter objects such as nebulae and galaxies and star clusters or some of the closest stars to the Sun.

Descriptions of the sky for observers in both the northern and southern hemispheres are available for the following times this month. Subtract one hour from your local time if summer (daylight savings) time is in effect.

Local Time Northern Hemisphere Southern Hemisphere
1730 hours (1830 hours summer time) 45° N 30° S
1930 hours (2030 hours summer time) 45° N 30° S
2130 hours (2230 hours summer time) 45° N 30° S
2330 hours (0030 hours summer time) 45° N 30° S
0130 hours (0230 hours summer time) 45° N 30° S
0330 hours (0430 hours summer time) 45° N 30° S
0530 hours (0630 hours summer time) 45° N 30° S