M81/M82/NGC3077
... M81 — -35 km/sec (3.63 ± 0.34 Mpc) (CBR value: 48 km/sec) M82 — 202 km/sec (3.9 ± 0.3 Mpc) (CBR value: 296 km/sec) M81 is closer and approaching, while M82 is farther away and receding; ...
... M81 — -35 km/sec (3.63 ± 0.34 Mpc) (CBR value: 48 km/sec) M82 — 202 km/sec (3.9 ± 0.3 Mpc) (CBR value: 296 km/sec) M81 is closer and approaching, while M82 is farther away and receding; ...
Stellarium User Guide - Skolekonsulenterne.dk
... also notice that the stars have started to move slightly across the sky. If it’s daytime you might be able to see the sun moving (but it’s less apparent than the movement of the stars). Increase the rate at which time passes again by clicking on the button a third time. Now time is really flying! Le ...
... also notice that the stars have started to move slightly across the sky. If it’s daytime you might be able to see the sun moving (but it’s less apparent than the movement of the stars). Increase the rate at which time passes again by clicking on the button a third time. Now time is really flying! Le ...
I. Constellations
... of the 88 constellations. These particular constellations are called the zodiac constellations. ...
... of the 88 constellations. These particular constellations are called the zodiac constellations. ...
Educator`s Guide
... To find Ursa Minor (the Little Dipper) using Ursa Major (the Big Dipper) as your guide.): - Follow the two stars at the end of the bowl in a straight line for approximately 30 degrees (or three fists held at arm’s length) and you will end up on the north star. - Polaris, the North Star, is the star ...
... To find Ursa Minor (the Little Dipper) using Ursa Major (the Big Dipper) as your guide.): - Follow the two stars at the end of the bowl in a straight line for approximately 30 degrees (or three fists held at arm’s length) and you will end up on the north star. - Polaris, the North Star, is the star ...
... in the SIMBAD data base. These facts perhaps led Peña et al. (2012) to include the star in their programme of field RRL uvby photometry. The star was the subject of a uvby photometric study of McNamara & Redcorn (1977). These authors concluded, based on its apparently rich metallicity, that the sta ...
Hot Horizontal Branch Stars in the Galactic Bulge. I
... indicate a thick disk rather than halo population (Saffer et al. 1994, 1997). Among open clusters (reviewed by Friel 1995), the most striking occurrence of sdB/O stars is found in NGC 6791, with a metallicity 3 – 4 times solar (Peterson & Green 1998). In addition to two cooler BHB (or blue straggler ...
... indicate a thick disk rather than halo population (Saffer et al. 1994, 1997). Among open clusters (reviewed by Friel 1995), the most striking occurrence of sdB/O stars is found in NGC 6791, with a metallicity 3 – 4 times solar (Peterson & Green 1998). In addition to two cooler BHB (or blue straggler ...
comet panstarrs
... Rupp Observatory and retired Astronomical League Executive Secretary. She was the first woman astronomer to achieve Comet Hunter’s Gold Status. ...
... Rupp Observatory and retired Astronomical League Executive Secretary. She was the first woman astronomer to achieve Comet Hunter’s Gold Status. ...
Module1: Scale of the Universe
... 1.& Ask&the&students&what&they¬ice&about&the&results&–&did&each&team&end&up& the&same&distance?&Is&there&a&correlation&between&percent&error&and& baseline&distance&(distance&from&the&Sun?)& 2.& If&each&group&measured&the¶llax&angle&with&the&same&amount&of&care,& there&should&be&a¬able&tren ...
... 1.& Ask&the&students&what&they¬ice&about&the&results&–&did&each&team&end&up& the&same&distance?&Is&there&a&correlation&between&percent&error&and& baseline&distance&(distance&from&the&Sun?)& 2.& If&each&group&measured&the¶llax&angle&with&the&same&amount&of&care,& there&should&be&a¬able&tren ...
Astronomy Astrophysics
... parameter determination was not straight forward. G 86 - B1B = WD 0518+333: Bergeron et al. (2001) mark this star as possible double degenerate. The atmospheric parameters derived from spectroscopy (Bergeron et al. 1995a) differ considerably from those derived from photometry and trigonometric parall ...
... parameter determination was not straight forward. G 86 - B1B = WD 0518+333: Bergeron et al. (2001) mark this star as possible double degenerate. The atmospheric parameters derived from spectroscopy (Bergeron et al. 1995a) differ considerably from those derived from photometry and trigonometric parall ...
Life Histories Of Some Stars
... all? Describe the shape of the graph? Is it a straight line? A curve? 5. Give each group the list of stars attached and the HR diagram attached. Instead of height and weight, the information is in Luminosity (compared to sun) and Surface Temperature (in K). The chart also gives the star’s current st ...
... all? Describe the shape of the graph? Is it a straight line? A curve? 5. Give each group the list of stars attached and the HR diagram attached. Instead of height and weight, the information is in Luminosity (compared to sun) and Surface Temperature (in K). The chart also gives the star’s current st ...
Astronomy Astrophysics Circumstellar emission in Be/X-ray binaries of the Magellanic
... that profoundly alters the emerging spectrum. Spectra of Be stars show some essential characteristics. 1) The Balmer lines are affected by the emission that is produced by bound-bound transitions in the envelope, which fills in the photospheric lines or drives them into emission. 2) Free-free transi ...
... that profoundly alters the emerging spectrum. Spectra of Be stars show some essential characteristics. 1) The Balmer lines are affected by the emission that is produced by bound-bound transitions in the envelope, which fills in the photospheric lines or drives them into emission. 2) Free-free transi ...
A Star - Cloudy Nights
... bluish tint. The pair are about 410 light years distant and are separated by 4400 A.U. Mizar is a fine example of a double star system. This pair lies at a distance of 88 light years and are separated by 380 A.U. Observations indicate that it must take several thousand years for these two stars to ...
... bluish tint. The pair are about 410 light years distant and are separated by 4400 A.U. Mizar is a fine example of a double star system. This pair lies at a distance of 88 light years and are separated by 380 A.U. Observations indicate that it must take several thousand years for these two stars to ...
CHAPTER 1 The Formation and Structure of Stars
... or molecules in a material—in a hot gas, the atoms move more rapidly than do those in a cool gas. – Although the interstellar clouds are very cold, even at a temperature of only 10 K, the average hydrogen atom moves about 0.5 km/s (1,100 mph). – This thermal motion would make the cloud drift apart i ...
... or molecules in a material—in a hot gas, the atoms move more rapidly than do those in a cool gas. – Although the interstellar clouds are very cold, even at a temperature of only 10 K, the average hydrogen atom moves about 0.5 km/s (1,100 mph). – This thermal motion would make the cloud drift apart i ...
Cassiopeia (constellation)
Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive 'M' shape when in upper culmination but in higher northern locations when near lower culminations in spring and summer it has a 'W' shape, formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper.In northern locations above 34ºN latitude it is visible year-round and in the (sub)tropics it can be seen at its clearest from September to early November in its characteristic 'M' shape. Even in low southern latitudes below 25ºS is can be seen low in the North.