What exactly is a "Black Moon" as referred to on a calendar?

Answer 1

the one you see on the calendar is the new moon, when you (in theory) don't see the moon at all. it's between two full moons.

Answer 2

In astronomy, the term black moon is not well known nor frequently used. As a consequence it has no accepted definition, but seems to have occasionally been applied to at least four different situations:

1. the absence of a new moon or dark moon in a calendar month;
2. the absence of a full moon in a calendar month;
3. either the third or the fourth new moon or dark moon in a season that has four of them (a season normally has only three). This is in analogy to the term blue moon which is the third full moon in a season that has four;
4. the second occurrence of a dark moon or new moon in a calendar month; this in analogy to an improper use of the term blue moon which sometimes is applied to the second full moon in a calendar month.

A black moon by the first meaning can only occur in February, with the next taking place (according to UTC) in 2014. In that year January and March will each have a black moon according to the fourth meaning.

A black moon by the second meaning can only occur in February, with the next taking place in 2018. In that year January and March will each have a second full moon (sometimes called a blue moon).

The next black moon in the third meaning of the term will occur in the northern summer of 2006, with the third new moon of the season on August 23 (19:10 UTC) and the fourth on September 22 (11:45 UTC). The autumnal equinox occurs on September 23 (04:03 UTC).

The next black moon in the fourth meaning of the term, which can occur in any month except February, is set to occur on August 30, 2008 (19:58 UTC). The last event occurred on December 31, 2005 (03:12 UTC).

In Astrology, the term "black moon" can sometimes refer to Lilith, Earth's hypothetical second moon.

You could get mor information from the link below...

Answer 3

In astronomy, the term black moon is not well known nor frequently used. As a consequence it has no accepted definition, but seems to have occasionally been applied to at least four different situations:

the absence of a new moon or dark moon in a calendar month;
the absence of a full moon in a calendar month;
either the third or the fourth new moon or dark moon in a season that has four of them (a season normally has only three). This is in analogy to the term blue moon which is the third full moon in a season that has four;
the second occurrence of a dark moon or new moon in a calendar month; this in analogy to an improper use of the term blue moon which sometimes is applied to the second full moon in a calendar month.
A black moon by the first meaning can only occur in February, with the next taking place (according to UTC) in 2014. In that year January and March will each have a black moon according to the fourth meaning.

A black moon by the second meaning can only occur in February, with the next taking place in 2018. In that year January and March will each have a second full moon (sometimes called a blue moon).

The next black moon in the third meaning of the term will occur in the northern summer of 2006, with the third new moon of the season on August 23 (19:10 UTC) and the fourth on September 22 (11:45 UTC). The autumnal equinox occurs on September 23 (04:03 UTC).

The next black moon in the fourth meaning of the term, which can occur in any month except February, is set to occur on August 30, 2008 (19:58 UTC). The last event occurred on December 31, 2005 (03:12 UTC).

In Astrology, the term "black moon" can sometimes refer to Lilith, Earth's hypothetical second moon.

Answer 4

Depends on the conventions on your calendar, but on mine, an open circle (white in it) means a full moon and the black means no moon. It is the other way around on some calendars.

No moon has nothing to do with the earth's shadow covering the moon's surface. That would be a lunar eclipse. That is different. No moon is just a phase of the moon. Here's a web site:

http://aa.usno.navy.mil/faq/docs/moon_phases.html

Answer 5

The New Moon.

Answer 6

so easy its what happens after a full moon when u dont see it black moon.

Answer 7

Comes midway between two full moons (every month) when the earth's shadow completely covers the moon's face.