A.light year
B.astronomical unit
C.parsec
D.kilometer
2007-11-02 15:46:17 · 22 answers · asked by tdoby3 2 in Science & Mathematics ➔ Astronomy & Space
Pasec is the largest
2007-11-02 15:52:10 · update #1
*Parsec is the largest
2007-11-02 15:52:43 · update #2
It's actually C
1 Parsec = 3.08568025 × 10^16 meters
1 lightyear = 9.4605284 × 10^15 meters
It's funny how so many people just come here to guess to get it over with
2007-11-02 15:50:02 · answer #1 · answered by Anonymous · 0⤊ 1⤋
A.light year
The distance travelled by light in one year. 9.4607x 10 12 km or 63,240 AU or 0.3066 parsecs www.aoe.com.au/astronomical_glossary.html
B.astronomical unit
The distance from the Earth to the sun. On average, the sun is 149,599,000 kilometers from Earth.
eobglossary.gsfc.nasa.gov/Library/glossary.php3
C.parsec
A unit of distance equal to about 3.26 light-years (or, more precisely, equal to 206,265 Astronomical Units). ...
www.astrosociety.org/education/publications/tnl/14/14.html
D.kilometer
A unit of measure for length. One kilometer equals 1,000 meters. A kilometer is also equal to .6214 miles.
www.ncsu.edu/project/agronauts/workbooks/Mission_1_Glossary.doc
Which of these units of measure is the largest?
1) 1 Parsec = 3.26163626 light year
therefore C is larger than A
2) 1 Parsec = 206 264.806 Astronomical Units
therefore C is larger than B
3) 1 Parsec = 30855019800000 Kilometers
therefore C is larger than D
THEREFORE: C: the Parsec is the largest
2007-11-02 16:22:28 · answer #2 · answered by mimi 3 · 0⤊ 1⤋
The largest unit is the parsec. The length of a parsec is approximately 3.262 light-years.
A light-year is the distance that light travels in a year.
An astronomical unit or AU is the distance from the Earth to the Sun.
2007-11-02 15:50:01 · answer #3 · answered by Blue Jean 6 · 0⤊ 1⤋
A) A light year is the distance that the light travels per year which is 10 trillion kilometers or 6 trillion miles
B) the distance between the sun and the earth which is 1.5 million kilometers.
C) 3 trillion kilometers
D) Not worth mentioning since the digit is far too low to compete with the unit above.
Answer: A
2007-11-02 16:24:53 · answer #4 · answered by Anonymous · 0⤊ 1⤋
An astronomical unit is 150 million km.
A light year is about 9 billion km.
A parsec is about 3.26 light years.
You know how long a kilometer is.
So you can figure out which is the longest.
wikipedia is an amazing tool to get this kind of information.
2007-11-02 15:51:14 · answer #5 · answered by Anonymous · 0⤊ 1⤋
A parsec is about 3.2 light years. An AU is 93M miles, about 8 light-minutes, - so the answer is C...
2007-11-02 16:55:44 · answer #6 · answered by Steve E 4 · 0⤊ 1⤋
1 light year = 9.460528405^12 kilometers
1 astronomical unit = 149,600,000 kilometers
1 parsec = 3.085729264^13 kilometers
2007-11-02 16:32:01 · answer #7 · answered by Anonymous · 0⤊ 1⤋
Answer is C- parsec
2007-11-02 15:59:55 · answer #8 · answered by bashah1939 4 · 0⤊ 1⤋
I'm not so much positive they all refer to size. some refer to spacial differentials, some in a round about way to time. Some to Terra firma.
2007-11-02 16:09:58 · answer #9 · answered by scotty w 2 · 0⤊ 2⤋
i believe it is parsec but i could be wrong
2007-11-02 15:48:47 · answer #10 · answered by Anonymous · 0⤊ 1⤋