- The
Bortle dark-sky
scale (usually
referred to as
simply the
Bortle scale) is a nine-level
numeric scale that
measures the
night sky's
brightness of a...
-
Robby Blake Bortles (born
April 28, 1992) is an
American former professional football quarterback who pla**** in the
National Football League (NFL) for...
- John E.
Bortle is an
American amateur astronomer. He is best
known for
creating the
Bortle scale to
quantify the
darkness of the
night sky.
Bortle has made...
-
resulting in a "headless"
comet similar to
Comet Lovejoy in 2011. John
Bortle considers the
comet due to its
brightness and
night time
appearance as the...
- celebrity, journalist, or athlete.
Frequent guests include Ryan Whitney,
Blake Bortles,
Blake Griffin,
Brooks Koepka, Mark Titus, Ryen Russillo,
Chris Long, Mike...
- ends with loss in 2A final". The
Indianapolis Star. noah.
bortle@nwi.com, 219-853-2522, Noah
Bortle (December 6, 2022). "Notre Dame
recruit Drayk Bowen wins...
- 40-yard
completion from
Bortles to
Yeldon on third-and-5.
Fullback Tommy Bohanon caught a 14-yard
touchdown p**** from
Bortles with 4:19 left,
giving the...
- The
Alabama Hills feature exceptional skies for
Central California. It is
Bortle class 2 or "average dark sky" site; this low
level of
light pollution meets...
- park is the
darkest sky for any
state park site in Oklahoma; the site is a
Bortle 1 zone, thus
making the park a big
attraction for
astronomers to view the...
-
horizon are to all
intents and
purposes unobservable.
Bortle, John E. (February 2001). "The
Bortle Dark-Sky Scale". Sky & Telescope. Sky
Publishing Corporation...
