Simulated image courtesy of Tom Ruen.

New Moon

Dominic Ford, Editor
From the Moon feed

Objects: The Moon
Please wait
Loading 0/4
Click and drag to rotate
Mouse wheel to zoom in/out
Touch with mouse to dismiss
The sky at

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

The Moon's orbital motion carries it around the Earth once every four weeks, and as a result its phases cycle from new moon, through first quarter, full moon and last quarter, back to new moon once every 29.5 days.

This motion also means that the Moon travels more than 12° across the sky from one night to the next, causing it to rise and set nearly an hour later each day. More information about the Moon's phases is available here.

At new moon, the Earth, Moon and Sun all lie in a roughly straight line, with the Moon in the middle, appearing in front of the Sun's glare. In this configuration, we see almost exactly the opposite half of the Moon to that which is illuminated by the Sun, making it doubly unobservable because the side we see is unilluminated.

Over coming days, the Moon will become visible in the late afternoon and dusk sky as a waxing crescent which sets soon after the Sun. By first quarter, in a week's time, it will be visible until around midnight.

At the moment of closest approach, it will pass within 0°54' of the Sun, in the constellation Pisces. The celestial coordinates of the Sun and Moon will be:

Object Right Ascension Declination Constellation Angular Size
The Moon 23h54m40s -01°34' Pisces 29'50"
Sun (centre) 23h53m -00°43' Pisces 32'07"

The coordinates above are given in J2000.0.

The sky on 19 April 2021
Sunrise
06:52
Sunset
20:16
Twilight ends
21:48
Twilight begins
05:20

7-day old moon
Waxing Crescent

43%

7 days old

Planets
Rise Culm. Set
Mercury 06:55 13:31 20:07
Venus 07:16 13:57 20:39
Moon 12:03 19:41 02:32
Mars 10:05 17:30 00:56
Jupiter 04:16 09:37 14:59
Saturn 03:36 08:43 13:50
All times shown in MDT.

Warning

Never attempt to point a pair of binoculars or a telescope at an object close to the Sun. Doing so may result in immediate and permanent blindness.

Source

The circumstances of this event were computed using the DE430 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

Related news

18 Mar 1950  –  New Moon
22 Mar 1950  –  The Moon at apogee
26 Mar 1950  –  Moon at First Quarter
02 Apr 1950  –  Full Moon

Image credit

Simulated image courtesy of Tom Ruen.

Share

Follow

Washington

Latitude:
Longitude:
Timezone:

37.13°N
113.51°W
MDT

Color scheme