Star - Uplift Education
... They are sufficiently close to Earth and the stars are well enough separated. Sirius A, brightest star in the night sky and its companion first white dwarf star to be discovered Sirius B. ...
... They are sufficiently close to Earth and the stars are well enough separated. Sirius A, brightest star in the night sky and its companion first white dwarf star to be discovered Sirius B. ...
Astrophysics - Florence
... Large grouping of stars, gas, and dust in space that are held together by gravity. ...
... Large grouping of stars, gas, and dust in space that are held together by gravity. ...
Mon Jul 4, 2011 4TH OF JULY COSMIC FIREWORKS On the 4th of
... There’s been a pretty crescent moon in our evening skies this week; lots of folks noticed it during the 4 th of July fireworks a few days ago. The moon is waxing, and it’s now at first quarter, which looks like a half moon in the southern sky after sunset. Half moons and first quarter moons are the ...
... There’s been a pretty crescent moon in our evening skies this week; lots of folks noticed it during the 4 th of July fireworks a few days ago. The moon is waxing, and it’s now at first quarter, which looks like a half moon in the southern sky after sunset. Half moons and first quarter moons are the ...
Candidate`s registration number: Desk number: ………………….. Date
... At the end of the examination, tie this paper to your answer book for Section B and hand them in together. Remember to fill in your registration number from your UCard in the space below. If you attempt additional questions in Section B, please indicate clearly on the cover of your answer book which ...
... At the end of the examination, tie this paper to your answer book for Section B and hand them in together. Remember to fill in your registration number from your UCard in the space below. If you attempt additional questions in Section B, please indicate clearly on the cover of your answer book which ...
9 spectroscopic parallax
... The Sun has an apparent magnitude of –26. What might its absolute magnitude be? A. –26 B. –23 C. 4.85 D. –33 E. Cannot determine ...
... The Sun has an apparent magnitude of –26. What might its absolute magnitude be? A. –26 B. –23 C. 4.85 D. –33 E. Cannot determine ...
Miss Nevoral - Ms. Nevoral`s site
... 6. What characteristics do all galaxies share? Galaxies are large, contain stars, spinning. 7. How does the speed at which a galaxy rotates affect its shape? The more spin a galaxy has, the flatter it will be. 8. Besides shape, what other ways do galaxies differ from each other? Galaxies differ in ...
... 6. What characteristics do all galaxies share? Galaxies are large, contain stars, spinning. 7. How does the speed at which a galaxy rotates affect its shape? The more spin a galaxy has, the flatter it will be. 8. Besides shape, what other ways do galaxies differ from each other? Galaxies differ in ...
Down Under from North Florida
... stars. Now, want a really severe challenge? Look for some stars in the small but distinctive constellation of Crux (“The Fig. 2. Omega Centauri Swings Low. This southern Southern Cross”), which lies near the hemisphere globular cluster appears only 13 degrees high southwestern boundary of Centaurus. ...
... stars. Now, want a really severe challenge? Look for some stars in the small but distinctive constellation of Crux (“The Fig. 2. Omega Centauri Swings Low. This southern Southern Cross”), which lies near the hemisphere globular cluster appears only 13 degrees high southwestern boundary of Centaurus. ...
HW #8 Answers (Due 10/21)
... in the galaxy. When this happens, the interaction between the cloud and the spiral density wave can compress a cloud and initiate star formation in the cloud. This is the primary mechanism for star formation in most galaxies. Cloud – Cloud collisions – This mechanism is most common in galaxies which ...
... in the galaxy. When this happens, the interaction between the cloud and the spiral density wave can compress a cloud and initiate star formation in the cloud. This is the primary mechanism for star formation in most galaxies. Cloud – Cloud collisions – This mechanism is most common in galaxies which ...
Lecture 10: The Milky Way
... 2. Variable stars Some star clusters contain types of unstable AGB stars that have regular pulsations (they lie on the ‘instability strip’). The most important of these variables are Cepheid variables – with luminosities of up to 104 L they can be seen in distant galaxies (Polaris is a nearby Ceph ...
... 2. Variable stars Some star clusters contain types of unstable AGB stars that have regular pulsations (they lie on the ‘instability strip’). The most important of these variables are Cepheid variables – with luminosities of up to 104 L they can be seen in distant galaxies (Polaris is a nearby Ceph ...
Life Cycle of a Star
... • The star runs out of fuel • The core shrinks and the outer parts expand • It turns red as it is cooling • This phase will last until the star exhausts its remaining fuel. • The pressure of the nuclear reaction is not strong enough to equalize the force of gravity so the star will collapse. ...
... • The star runs out of fuel • The core shrinks and the outer parts expand • It turns red as it is cooling • This phase will last until the star exhausts its remaining fuel. • The pressure of the nuclear reaction is not strong enough to equalize the force of gravity so the star will collapse. ...
Astronomy Test Review
... 11. The temperature of a star can be determined by its color. 13. Parallax is the apparent displacement (movement) of an object due to the change in position of the observer. 14. Apparent magnitude is how bright a star is as seen from Earth where as absolute magnitude is the brightness of a star fro ...
... 11. The temperature of a star can be determined by its color. 13. Parallax is the apparent displacement (movement) of an object due to the change in position of the observer. 14. Apparent magnitude is how bright a star is as seen from Earth where as absolute magnitude is the brightness of a star fro ...
Measuring the Distances to the Stars: Parallax What sets the parallax limit?
... Hipparcos (1989-1993): 100-200 parsecs (1σ =1 milliarcsec = 1kpc) ...
... Hipparcos (1989-1993): 100-200 parsecs (1σ =1 milliarcsec = 1kpc) ...
STAR FORMATION (Ch. 19) - University of Texas Astronomy Home
... disks, and progressing to evolved massive stars in the young starburst cluster.To the upper right of center is the evolved blue supergiant called Sher 25. The star has a unique circumstellar ring of glowing gas that is a galactic twin to the famous ring around the supernova 1987A--see the image of S ...
... disks, and progressing to evolved massive stars in the young starburst cluster.To the upper right of center is the evolved blue supergiant called Sher 25. The star has a unique circumstellar ring of glowing gas that is a galactic twin to the famous ring around the supernova 1987A--see the image of S ...
Stellar Evolution - Hays High Indians
... • . . . And so forth, as long as temperatures are high enough to fuse that particular element • As particles that are colliding get larger, much more heat (energy) is needed to get them to stick together ...
... • . . . And so forth, as long as temperatures are high enough to fuse that particular element • As particles that are colliding get larger, much more heat (energy) is needed to get them to stick together ...
Stellar Evolution
... Remnants of stars with ~ 1 – a few Msun Radii: R ~ 0.2 - 3 light years Expanding at ~10 – 20 km/s (← Doppler shifts) Less than 10,000 years old ...
... Remnants of stars with ~ 1 – a few Msun Radii: R ~ 0.2 - 3 light years Expanding at ~10 – 20 km/s (← Doppler shifts) Less than 10,000 years old ...
Goals of the day Clickers Order of Magnitude Astronomy
... A radio message from outer space arrived today which was sent from planet Buff on the day you were born. The friendly aliens sending you the birthday message live: ...
... A radio message from outer space arrived today which was sent from planet Buff on the day you were born. The friendly aliens sending you the birthday message live: ...
Chapter 1 Daily Note Sheets Completed Power Point
... • 1. Using the two pointer stars in the Big Dipper (Merak & Dubhe) create a straight line to the North Star • 2. Face north and count 4 fist and a finger up from the horizon (altitude) ...
... • 1. Using the two pointer stars in the Big Dipper (Merak & Dubhe) create a straight line to the North Star • 2. Face north and count 4 fist and a finger up from the horizon (altitude) ...
Spring Constellations
... centaur’s front hooves, Rigil Kentaurus and Hadar, also called ά- and β-Centauri. Our closest neighbor, Proxima Centauri, a red dwarf star 4 LY away, is due south of alpha Centauri. It’s so faint that it can’t be seen with the naked eye. It’s only about 5 times larger than the earth. ...
... centaur’s front hooves, Rigil Kentaurus and Hadar, also called ά- and β-Centauri. Our closest neighbor, Proxima Centauri, a red dwarf star 4 LY away, is due south of alpha Centauri. It’s so faint that it can’t be seen with the naked eye. It’s only about 5 times larger than the earth. ...
3. Stellar Formation and Evolution
... condition of hydrostatic equilibrium, a protostar forms at the core. • These pre-main sequence stars are often surrounded by a protoplanetary disk (explain later). ...
... condition of hydrostatic equilibrium, a protostar forms at the core. • These pre-main sequence stars are often surrounded by a protoplanetary disk (explain later). ...
SO FAR:
... • Π, Θ, Z velocities but relative to Local Standard of Rest • LSR is point instantaneously centered on Sun, but moving in a perfectly circular orbit. • Solar motion: motion of sun relative to LSR ...
... • Π, Θ, Z velocities but relative to Local Standard of Rest • LSR is point instantaneously centered on Sun, but moving in a perfectly circular orbit. • Solar motion: motion of sun relative to LSR ...
Goals of the day Clickers Order of Magnitude Astronomy
... A radio message from outer space arrived today which was sent from planet Buff on the day you were born. The friendly aliens sending you the birthday message live: ...
... A radio message from outer space arrived today which was sent from planet Buff on the day you were born. The friendly aliens sending you the birthday message live: ...
star map looking north january-march
... Our nearest large galaxy – Andromeda – can be seen in the Andromeda constellation. It appears to us as an elongated fuzzy blob. The Andromeda galaxy is so far away that its light takes over two million years to reach us. ...
... Our nearest large galaxy – Andromeda – can be seen in the Andromeda constellation. It appears to us as an elongated fuzzy blob. The Andromeda galaxy is so far away that its light takes over two million years to reach us. ...
Serpens
Serpens (""the Serpent"", Greek Ὄφις) is a constellation of the northern hemisphere. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations defined by the International Astronomical Union. It is unique among the modern constellations in being split into two non-contiguous parts, Serpens Caput (Serpent's Head) to the west and Serpens Cauda (Serpent's Tail) to the east. Between these two halves lies the constellation of Ophiuchus, the ""Serpent-Bearer"". In figurative representations, the body of the serpent is represented as passing behind Ophiuchus between Mu Serpentis in Serpens Caput and Nu Serpentis in Serpens Cauda.The brightest star in Serpens is the red giant star Alpha Serpentis, or Unukalhai, in Serpens Caput, with an apparent magnitude of 2.63. Also located in Serpens Caput are the naked-eye globular cluster Messier 5 and the naked-eye variables R Serpentis and Tau4 Serpentis. Notable extragalactic objects include Seyfert's Sextet, one of the densest galaxy clusters known; Arp 220, the prototypical ultraluminous infrared galaxy; and Hoag's Object, the most famous of the very rare class of galaxies known as ring galaxies.Part of the Milky Way's galactic plane passes through Serpens Cauda, which is therefore rich in galactic deep-sky objects, such as the Eagle Nebula (IC 4703) and its associated star cluster Messier 16. The nebula measures 70 light-years by 50 light-years and contains the Pillars of Creation, three dust clouds that became famous for the image taken by the Hubble Space Telescope. Other striking objects include the Red Square Nebula, one of the few objects in astronomy to take on a square shape; and Westerhout 40, a massive nearby star-forming region consisting of a molecular cloud and an H II region.