1
'Dawn' Pt. 2 (An Ambient Mix)
DATE: 2015/01/01::
2
'Dawn' An Ambient Mix
DATE: 2013/01/01::
3
Dawn (Go Away) - Frankie Valli and the Four Seasons
Dawn (Go Away) - Frankie Valli and the Four Seasons
DATE: 2010/08/06::
4
Dawn Richard - Blow
Dawn Richard - Blow
DATE: 2014/10/29::
5
Dawn Richard - Projection
Dawn Richard - Projection
DATE: 2015/03/16::
6
Basenji - Dawn
Basenji - Dawn
DATE: 2014/04/12::
7
Rhapsody (of Fire) - Dawn of Victory
Rhapsody (of Fire) - Dawn of Victory
DATE: 2008/11/15::
8
Tony Orlando & Dawn sing Knock Three Times
Tony Orlando & Dawn sing Knock Three Times
DATE: 2008/03/28::
9
Tony Orlando & Dawn ~ Tie a Yellow Ribbon Round the Ole Oak Tree
Tony Orlando & Dawn ~ Tie a Yellow Ribbon Round the Ole Oak Tree
DATE: 2012/04/16::
10
League of Legends Cinematic: A New Dawn
League of Legends Cinematic: A New Dawn
DATE: 2014/07/22::
11
Akatsuki no Yona - Yona of the Dawn  Episode 24  Enligsh Sub Full Screen HD
Akatsuki no Yona - Yona of the Dawn Episode 24 Enligsh Sub Full Screen HD
DATE: 2015/03/24::
12
THE DAWN - SALAMAT
THE DAWN - SALAMAT
DATE: 2008/06/14::
13
NASA
NASA's Dawn Spacecraft Spots Two Bright Points on Ceres
DATE: 2015/02/26::
14
Batman v Superman: Dawn of Justice Epic Trailer
Batman v Superman: Dawn of Justice Epic Trailer
DATE: 2015/03/25::
15
Candida - Tony Orlando & Dawn
Candida - Tony Orlando & Dawn
DATE: 2008/02/10::
16
1. Dawn Pride and Prejudice Score 2005
1. Dawn Pride and Prejudice Score 2005
DATE: 2010/10/23::
17
Action Movies Full Movies English ★Red Dawn ★ Hollywood Adventure Action Sci Fi New Movies
Action Movies Full Movies English ★Red Dawn ★ Hollywood Adventure Action Sci Fi New Movies
DATE: 2015/01/09::
18
Pink Floyd - The Piper At The Gates Of Dawn - Album (1967)
Pink Floyd - The Piper At The Gates Of Dawn - Album (1967)
DATE: 2015/02/14::
19
HTTYD: Dawn of the Dragon Racers FULL MOVIE HD
HTTYD: Dawn of the Dragon Racers FULL MOVIE HD
DATE: 2015/02/20::
20
Dawn of the Planet of the Apes | Official Trailer [HD] | 20th Century FOX
Dawn of the Planet of the Apes | Official Trailer [HD] | 20th Century FOX
DATE: 2014/05/08::
21
Rebel Victory at BB Wars Episode 1: A New Dawn - Airsoft GI
Rebel Victory at BB Wars Episode 1: A New Dawn - Airsoft GI
DATE: 2015/03/29::
22
Breaking Dawn Parody by The Hillywood Show®
Breaking Dawn Parody by The Hillywood Show®
DATE: 2012/02/01::
23
Dawn Of The Dead (1978) Director
Dawn Of The Dead (1978) Director's Cut
DATE: 2013/07/15::
24
Dawn Nears Ceres - Approach Images, Movies and Animations
Dawn Nears Ceres - Approach Images, Movies and Animations
DATE: 2015/03/02::
25
Twilight: Breaking Dawn Part 2 (7/10) Movie CLIP - The Battle Begins (2012) HD
Twilight: Breaking Dawn Part 2 (7/10) Movie CLIP - The Battle Begins (2012) HD
DATE: 2014/10/10::
26
Nicky, Ricky, Dicky & Dawn |
Nicky, Ricky, Dicky & Dawn | 'M.D. Day' Official Clip | Nick
DATE: 2015/03/11::
27
Star Wars ♣ Dawn of the Jedi Into the Void ♣ Full Audiobook ♣
Star Wars ♣ Dawn of the Jedi Into the Void ♣ Full Audiobook ♣
DATE: 2014/12/21::
28
Dawn Richard - Tide: The Paradox Effect
Dawn Richard - Tide: The Paradox Effect
DATE: 2015/01/15::
29
Spoony, Apirl, and Brad Jones Review Twilight Breaking Dawn Part 2
Spoony, Apirl, and Brad Jones Review Twilight Breaking Dawn Part 2
DATE: 2014/10/16::
30
Sine KULAY - Robin Padilla, Dawn Zulueta, Johnny Delgado & Mark Gil.
Sine KULAY - Robin Padilla, Dawn Zulueta, Johnny Delgado & Mark Gil.
DATE: 2013/12/24::
31
star wars a new dawn complete audiobook novel part 1
star wars a new dawn complete audiobook novel part 1
DATE: 2015/03/18::
32
League of Legends Cinematic: A New Dawn - Behind the Scenes
League of Legends Cinematic: A New Dawn - Behind the Scenes
DATE: 2014/07/22::
33
From Dusk Till Dawn | The Art Of Seduction (HD) | MIRAMAX
From Dusk Till Dawn | The Art Of Seduction (HD) | MIRAMAX
DATE: 2015/03/02::
34
Nicky, Ricky, Dicky & Dawn |
Nicky, Ricky, Dicky & Dawn | 'Abraquadabra' Official Clip | Nick
DATE: 2015/03/19::
35
Summoning - Old Mornings Dawn (Full Album)
Summoning - Old Mornings Dawn (Full Album)
DATE: 2014/05/25::
36
Nicky, Ricky, Dicky & Dawn - Full Music Video "We Make That Lemonade" with Mace Coronel - HD
Nicky, Ricky, Dicky & Dawn - Full Music Video "We Make That Lemonade" with Mace Coronel - HD
DATE: 2014/12/15::
37
15 minutes of Until Dawn Gameplay - Unitl Dawn Walkthrough Part 1 (PS4 Survival Horror game) Demo HD
15 minutes of Until Dawn Gameplay - Unitl Dawn Walkthrough Part 1 (PS4 Survival Horror game) Demo HD
DATE: 2014/12/15::
38
1951 Decision before dawn
1951 Decision before dawn
DATE: 2011/10/24::
39
Yona of the Dawn - 02 - Broken Bond (Sub)
Yona of the Dawn - 02 - Broken Bond (Sub)
DATE: 2014/12/12::
40
The Dawn Will Come [Strings Version]
The Dawn Will Come [Strings Version]
DATE: 2014/11/14::
41
Seinabo Sey - Pistols At Dawn (Lyric Video)
Seinabo Sey - Pistols At Dawn (Lyric Video)
DATE: 2014/09/17::
42
Dawn Golden - Discoloration
Dawn Golden - Discoloration
DATE: 2014/05/13::
43
Dawn of War Ultimate Apocalypse Mod! Imperial Guard and Necrons Vs Tau
Dawn of War Ultimate Apocalypse Mod! Imperial Guard and Necrons Vs Tau
DATE: 2014/12/26::
44
Yona of the Dawn - 01 - Princess Yona (Sub)
Yona of the Dawn - 01 - Princess Yona (Sub)
DATE: 2014/12/12::
45
Until Dawn HD - Survival Horror PS4 Exclusive - 40 minutes of Gameplay Walkthroughs in HD
Until Dawn HD - Survival Horror PS4 Exclusive - 40 minutes of Gameplay Walkthroughs in HD
DATE: 2014/10/20::
46
Rhapsody of Fire - Dawn of Victory (Full Album)
Rhapsody of Fire - Dawn of Victory (Full Album)
DATE: 2014/04/11::
47
Honest Trailers - Twilight 4: Breaking Dawn
Honest Trailers - Twilight 4: Breaking Dawn
DATE: 2013/03/05::
48
AMBERIAN DAWN - Magic Forest (Official Video) | Napalm Records
AMBERIAN DAWN - Magic Forest (Official Video) | Napalm Records
DATE: 2014/06/02::
49
Twilight: Breaking Dawn Part 2 (8/10) Movie CLIP - The Battle Rages On (2012) HD
Twilight: Breaking Dawn Part 2 (8/10) Movie CLIP - The Battle Rages On (2012) HD
DATE: 2014/10/11::
50
Supersize vs Superskinny: Season 4 / Episode 3 - "Dawn vs Charlene"
Supersize vs Superskinny: Season 4 / Episode 3 - "Dawn vs Charlene"
DATE: 2014/02/14::
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From Wikipedia, the free encyclopedia
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For other uses, see Dawn (disambiguation).
Not to be confused with sunrise.
Dawn is the beginning of morning twilight.
Dawn sky in Metz, France

Dawn (from an Old English verb dagian "to become day") is the time that marks the beginning of the twilight before sunrise. It is recognized by the presence of weak sunlight, while the Sun itself is still below the horizon. Dawn should not be confused with sunrise, which is the moment when the leading edge of the Sun itself appears above the horizon.

During dawn (and dusk) it is usually possible (provided that the sky is cloud-free) to see approximately in which direction the Sun lies, though it is below the horizon.

Types of dawn[edit]

Main article: Twilight
Early morning in Xepon, Laos (July 2004)

Different definitions exist for the start of dawn. The difference between these definitions is the amount of sunlight that must be present. This can be correlated with the angular distance of the centre of the Sun (degrees) below the horizon, in the morning:

Astronomical dawn[edit]

Astronomical dawn is defined as the moment after which the sky is no longer completely dark. This occurs when the Sun is 18 degrees below the horizon in the morning.[1] Though it is possible to localize the direction of the Sun during astronomical dawn and dusk, people in general experience astronomical dawn and dusk as night, even without clouds. The zenith is dark and more than just the brightest stars can be seen (except low above the horizon in the direction of the sun).

Clouds begin to glow with colors just moments after astronomical dawn, October, 2014.

Nautical dawn[edit]

Beginning of nautical dawn, Joshua Tree, California, United States

Nautical dawn is the time at which there is enough sunlight for the horizon and some objects to be distinguishable; formally, when the Sun is 12 degrees below the horizon in the morning.[1]

Civil dawn[edit]

Civil dawn is the time at which there is enough light for objects to be distinguishable, so that outdoor activities can commence; formally, when the Sun is 6 degrees below the horizon in the morning.[1] At civil dawn there is no darkness in any direction, nor at zenith. The sky is bright, even when cloudy.

Effects of latitude[edit]

The duration of the twilight period between dawn and sunrise varies greatly depending on the observer's latitude, from a little over twenty minutes in equatorial regions, to many hours in polar regions, to several weeks at the poles.

Effects of latitude (equatorial)[edit]

All phases of dawn and dusk are shortest at the equator, where the Sun at equinox rises and sets at a right angle to the horizon; the steps between civil, nautical, and astronomical dawn or dusk correspond to only 24 minutes each. At all places on the earth, dawn and dusk times are fastest around the equinoxes and slowest at the summer and winter solstices.

Effects of latitude (polar)[edit]

As the calendar approaches the summer/winter solstices the days/nights get shorter, which can have a potential impact on the time and duration of dawn and dusk. This effect is more pronounced closer to the poles, where the Sun rises at the spring equinox and sets at the autumn equinox; with a long period of dawn/dusk, lasting for a few weeks .

The polar circle (at 66°30′ N) is defined as the first latitude at which the Sun does not set during the summer solstice. Therefore the angular radius of the polar circle is equal to the angle between the plane of Earth's equator and that of the ecliptic. This period of time with no sunset extends closer to the North Pole.

Near the summer solstice, latitudes higher than 54°30′ get no darker than nautical dawn/dusk; the "darkness of the night" varies greatly in these latitudes.

At latitudes higher than about 59°20, summer nights get no darker than civil dusk or dawn. This period of "bright nights" is longer at higher latitudes (further north).

Examples[edit]

Around the summer solstice for instance, Glasgow, Scotland at 55°51′ N and Copenhagen, Denmark at 55°40′ N get a few hours of "night feeling", Oslo, Norway at 59°56′ N and Stockholm, Sweden at 59°19′ N seems very bright all the time the Sun is below the horizon. This may call for a different classification of dawn and dusk terminology for more practical use than astronomy. When the sun gets 9.0 to 9.5 degrees below the horizon (at summer solstice this is at latitudes 57°30′–57°00′), zenith gets dark even on cloud-free nights (if there is no full moon); more than just the brightest shining stars are clearly visible in a large majority of the sky.

At true solar noon at London (latitude 51°30′ N), the Sun is at an angle of (90 − 51.5 =) 38.5 degrees above the horizon at the equinoxes. At winter solstice the "Sun height" (solar elevation angle) is (38.5 − 23.5 =) 15.0 degrees above horizon. At summer solstice the "Sun height" is instead (38.5 + 23.5 =) 62 degrees above horizon.

Mythology and religion[edit]

Many Indo-European mythologies have a dawn goddess, separate from the male Solar deity, her name deriving from PIE *h2ausos-, derivations of which include Greek Eos, Roman Aurora, Indian Ushas, Slavic Zornitsa and possibly a Germanic *Austrōn- (whence the term Easter). The Hindu dawn deity Aruṇa is male. In Sioux mythology, Anpao is an entity with two faces.

Prime is the fixed time of prayer of the traditional Divine Office (Canonical Hours) in Christian liturgy, said at the first hour of daylight.

In Islam, dawn (Arabic fajr) is the time of the first prayer of the day, and the beginning of the daily fast during Ramadan.

In Judaism, the question of how to calculate dawn (Hebrew Alos/Alot HaShachar, or Alos/Alot) is posed by the Talmud,[3] as it is has many ramifications for Jewish law (such as the possible start time for certain daytime commandments, like prayer). The simple reading of the Talmud is that dawn takes place 72 minutes before sunrise. Others, including the Vilna Gaon, have the understanding that the Talmud's timeframe for dawn was referring specifically to an equinox day in Mesopotamia, and is therefore teaching that dawn should be calculated daily as commencing when the sun is 16.1 degrees below the horizon. The longstanding practice among most Sephardic Jews is to follow the first opinion, while many Ashkenazi Jews follow the latter view.

Dawn in the world of Art[edit]

Literature[edit]

  • Homer used the stock epithet "rosy-fingered Dawn" frequently in The Iliad and The Odyssey.
  • An aubade (Occitan Alba, German Tagelied) is a song about lovers having to separate at daybreak.
  • Aurora Musis amica (Dawn is a friend to the Muse), in Epigrammata Disticha Poetarum Latinorum, Veterum Et Recentum, Nobiliora (1642) by Barthold Nihus[4]

See also[edit]

References[edit]

  1. ^ a b c National Oceanic and Atmospheric Administration. "Astronomical Terms". 
  2. ^ "New Dawn at La Silla". ESO Picture of the Week. European Southern Observatory. Retrieved 27 February 2015. 
  3. ^ Pesachim 94a
  4. ^ Nihus, Barthold (1642). Epigrammata disticha. Johannes Kinckius. 

External links[edit]

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