Astronomy Picture of the Day Calendar Free Download: APOD 2020 Wall Calendar 2020: Jan: Feb: Mar: Apr: May: Jun: Jul: Aug: Sep: 2019: Jan: Feb: Mar: Apr The Lyrids is an average shower, usually producing about 20 meteors per hour at its peak. The planet Mercury reaches greatest eastern elongation of 18.2 degrees from the Sun. The disadvantage is that working out when a particular date would occur is difficult. This was mostly based on observation, but there may have been early attempts to model the pattern of intercalation algorithmically, as evidenced in the fragmentary 2nd-century Coligny calendar. Since this is the second full moon in the same month, it is sometimes referred to as a blue moon. The Moon will located on the same side of the Earth as the Sun and will not be visible in the night sky. Historically, several countries have based their calendars on regnal years, a calendar based on the reign of their current sovereign. This full moon was known by early Native American tribes as the Cold Moon because this is the time of year when the cold winter air settles in and the nights become long and dark.

The Moon will be near its closest approach to the Earth and may look slightly larger and brighter than usual.
Due to its distance, it will only appear as a tiny blue-green dot in all but the most powerful telescopes.

Meteors will radiate from the constellation Taurus, but can appear anywhere in the sky. Meteors will radiate from the constellation Draco, but can appear anywhere in the sky. Meteors will radiate from the constellation Gemini, but can appear anywhere in the sky. The primary practical use of a calendar is to identify days: to be informed about or to agree on a future event and to record an event that has happened. Best viewing will be from a dark location after midnight. Events & Star Parties | Clubs & Organizations | Equipment Guide | Astronomy Software

An arithmetic calendar is one that is based on a strict set of rules; an example is the current Jewish calendar. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. The Iranian calendar always begins the year on the vernal equinox and sets its intercalary days so that the following year also begins on the vernal equinox. November 16, 17 - Leonids Meteor Shower. This is the best time to view and photograph Jupiter and its moons.

The path of the eclipse will begin in central Africa and travel through Saudi Arabia, northern India, and southern China before ending in the Pacific Ocean. This is also the first day of fall (autumnal equinox) in the Northern Hemisphere and the first day of spring (vernal equinox) in the Southern Hemisphere. This is generally known as intercalation. As solar calendars became more accurate, they evolved into two types. The planet Mercury reaches greatest western elongation of 19.1 degrees from the Sun. The ringed planet will be at its closest approach to Earth and its face will be fully illuminated by the Sun. The eclipse will be visible throughout most of North America, South America, the eastern Pacific Ocean, the western Atlantic Ocean, and extreme western Africa. To search this site, type your search word(s) in the The oldest solar calendars include the Julian calendar and the Coptic calendar. The shower runs annually from October 2 to November 7. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. In-The-Sky.org. This phase occurs at 11:00 UTC. The most common type of pre-modern calendar was the lunisolar calendar, a lunar calendar that occasionally adds one intercalary month to remain synchronized with the solar year over the long term. The nearly full moon will be a problem this year, blocking out all but the brightest meteors. October 31 - Uranus at Opposition. They both have a year of 365 days, which is extended to 366 once every four years, without exception, so have a mean year of 365.25 days. March 24 - Venus at Greatest Eastern Elongation. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere. The same applies to months in a lunar calendar and also the number of months in a year in a lunisolar calendar. It peaks this year on the the night of the 21st and morning of the 22nd. However, the dates when the seasons begin and end vary depending on whom you ask. A medium-sized telescope will allow you to see some of the dark details on the planet's orange surface. It is a set of 12 months that may start at any date in a year. The Buddhist calendar and the traditional lunisolar calendars of Cambodia, Laos, Myanmar, Sri Lanka and Thailand are also based on an older version of the Hindu calendar. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere. It is produced by debris left behind by comets Marsden and Kracht. The Perseids is one of the best meteor showers to observe, producing up to 60 meteors per hour at its peak. The September equinox occurs at 13:30 UTC.

This full moon was known by early Native American tribes as the Beaver Moon because this was the time of year to set the beaver traps before the swamps and rivers froze. (NASA Map and Eclipse Information). If a sheet is for multiple days it shows a conversion table to convert from weekday to date and back. Such a calendar is called a tropical solar calendar[citation needed]. This is the best time to view Mercury since it will be at its highest point above the horizon in the evening sky. This is the most common usage of the word. December 14 - Total Solar Eclipse. The planet Mercury reaches greatest western elongation of 20.1 degrees from the Sun. Best viewing will be from a dark location after midnight. The Gregorian calendar is the de facto international standard and is used almost everywhere in the world for civil purposes. Similarly, Michael Rappenglueck believes that marks on a 15,000-year-old cave painting represent a lunar calendar.[9]. Prominent examples of lunisolar calendar are Hindu calendar and Buddhist calendar that are popular in South Asia and Southeast Asia. This is also the first of four supermoons for 2020. The waxing crescent moon will set before midnight leaving dark skies for what should be a good show. In accounting (and particularly accounting software), a fiscal calendar (such as a 4/4/5 calendar) fixes each month at a specific number of weeks to facilitate comparisons from month to month and year to year. It peaks this year on the night of the 13th and morning of the 14th. Eastern Christians, including the Orthodox Church, use the Julian calendar. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. July 14 - Jupiter at Opposition. Guides to the night sky. The Roman calendar was reformed by Julius Caesar in 46 BC. This full moon was known by early Native American tribes as the Wolf Moon because this was the time of year when hungry wolf packs howled outside their camps. Each Gregorian year has either 365 or 366 days (the leap day being inserted as 29 February), amounting to an average Gregorian year of 365.2425 days (compared to a solar year of 365.2422 days). This phase occurs at 07:34 UTC. Best viewing will be from a dark location after midnight. In a solar calendar a year approximates Earth's tropical year (that is, the time it takes for a complete cycle of seasons), traditionally used to facilitate the planning of agricultural activities. It also coincides with the peak of the strawberry harvesting season.

The shower runs annually from July 12 to August 23.