STARLAB
... you told the first time. If time allows, show the Earth Cylinder or other cylinders. Try some activities from your Planetarium Activities for Student Success (PASS) volumes. (Did you send in your Product Registration form? See Note.) 6. It’s important that the students realize that you are learning ...
... you told the first time. If time allows, show the Earth Cylinder or other cylinders. Try some activities from your Planetarium Activities for Student Success (PASS) volumes. (Did you send in your Product Registration form? See Note.) 6. It’s important that the students realize that you are learning ...
the fixed stars
... arbitrators, but exposes to cruel and severe trials. By the Kabalists this constellation is associated with the Hebrew letter Shin and the 22nd Tarot Trump, The Fool". (Robson). Rising: Cepheus will not engender dispositions inclined to sport. He fashions faces marked by a stern demeanour, and mould ...
... arbitrators, but exposes to cruel and severe trials. By the Kabalists this constellation is associated with the Hebrew letter Shin and the 22nd Tarot Trump, The Fool". (Robson). Rising: Cepheus will not engender dispositions inclined to sport. He fashions faces marked by a stern demeanour, and mould ...
my dissertation (PhD. Thesis) - Argelander
... stages of galaxies looked like long (several Gigayear) ago. However these objects are very far away, and thus appear very small and faint, so that observational constrictions blur the picture severely. Thusfar only minor evolutionary changes have been found by looking into the distant past (see e.g. ...
... stages of galaxies looked like long (several Gigayear) ago. However these objects are very far away, and thus appear very small and faint, so that observational constrictions blur the picture severely. Thusfar only minor evolutionary changes have been found by looking into the distant past (see e.g. ...
Colour-magnitude diagrams of the post
... can be considered a member. Goranskii determined a period of 0.5752 days, so that the cluster can be tentatively classified as Oosterhoff type I. 5. Conclusions Cluster parameters based on CCD photometry were derived for NGC 6256 and NGC 6717. They are both located in the bulge, but are not metal-ri ...
... can be considered a member. Goranskii determined a period of 0.5752 days, so that the cluster can be tentatively classified as Oosterhoff type I. 5. Conclusions Cluster parameters based on CCD photometry were derived for NGC 6256 and NGC 6717. They are both located in the bulge, but are not metal-ri ...
Lichtenknecker- Database of the BAV
... 2 The „ Lichtenknecker -Database of the BAV“ an O ver view The Lichtenknecker-Database of the BAV (LkDB) contains only data of eclipsing binaries – in the meantime more than 173.000 observed times of minima of more than 2.100 stars. The exact number can be found on the starting page of the (O-C)-Ge ...
... 2 The „ Lichtenknecker -Database of the BAV“ an O ver view The Lichtenknecker-Database of the BAV (LkDB) contains only data of eclipsing binaries – in the meantime more than 173.000 observed times of minima of more than 2.100 stars. The exact number can be found on the starting page of the (O-C)-Ge ...
Selected observation targets at a glance per constellation
... γ Doradus, Gamma Doradus, serves as a prototype of stars known as the Gamma Doradus variables. These stars are pulsating variables whose brightness varies by less than a tenth of a magnitude as a result of nonradial gravity wave oscillations. δ Doradus, Delta Doradus, spectral type A, is notable for ...
... γ Doradus, Gamma Doradus, serves as a prototype of stars known as the Gamma Doradus variables. These stars are pulsating variables whose brightness varies by less than a tenth of a magnitude as a result of nonradial gravity wave oscillations. δ Doradus, Delta Doradus, spectral type A, is notable for ...
Astronomy Astrophysics
... cluster parameters such as age, reddening, and distance is described in Borissova et al. (2011) and Chené et al. (2012, 2013). As described in Borissova et al. (2011), we used the field-star decontamination algorithm of Bonatto & Bica (2010), which was tweaked to exploit the VVV photometric depth in ...
... cluster parameters such as age, reddening, and distance is described in Borissova et al. (2011) and Chené et al. (2012, 2013). As described in Borissova et al. (2011), we used the field-star decontamination algorithm of Bonatto & Bica (2010), which was tweaked to exploit the VVV photometric depth in ...
constellations - Richmond and Glen Allen Weather
... magnitude thus only a couple hundred stars will be seen. • Under dark skies this number may be as high as 2,500 stars and many of these dim stars helped form the patterns of the constellations. • Light pollution is accountable for reducing the appeal of the night sky and loss of interest by many you ...
... magnitude thus only a couple hundred stars will be seen. • Under dark skies this number may be as high as 2,500 stars and many of these dim stars helped form the patterns of the constellations. • Light pollution is accountable for reducing the appeal of the night sky and loss of interest by many you ...
365 days of SKYWATCHING
... night as the terminator - the line between sunset and shadow - progresses over the surface, revealing new details. Unlike a star chart, Moon feature instructions are based on lunar topography and not our Earthly cardinal directions. While these pages outline what features should be visible on any gi ...
... night as the terminator - the line between sunset and shadow - progresses over the surface, revealing new details. Unlike a star chart, Moon feature instructions are based on lunar topography and not our Earthly cardinal directions. While these pages outline what features should be visible on any gi ...
Carbon, nitrogen and oxygen abundances in
... respectively. Nieva & Simón-Dı́az (2011) showed that the B stars in the Orion OB1 association show good agreement with the Sun in their C, N, O, Mg, Si and Fe abundances. Just three years ago, the problem of metallicity of young stars seemed far from simple. It was shown by several authors that the ...
... respectively. Nieva & Simón-Dı́az (2011) showed that the B stars in the Orion OB1 association show good agreement with the Sun in their C, N, O, Mg, Si and Fe abundances. Just three years ago, the problem of metallicity of young stars seemed far from simple. It was shown by several authors that the ...
Article PDF - IOPscience
... RR Lyrae stars may be the best practical tracers of Galactic halo (sub-)structure and kinematics. The PanSTARRS1 (PS1) 3p survey offers multi-band, multi-epoch, precise photometry across much of the sky, but a robust identification of RR Lyrae stars in this data set poses a challenge, given PS1ʼs spa ...
... RR Lyrae stars may be the best practical tracers of Galactic halo (sub-)structure and kinematics. The PanSTARRS1 (PS1) 3p survey offers multi-band, multi-epoch, precise photometry across much of the sky, but a robust identification of RR Lyrae stars in this data set poses a challenge, given PS1ʼs spa ...
LACEwING: A New Moving Group Analysis Code
... common origin, the age, metallicity, and formation environment deduced from the high-mass members can be applied to very low-mass objects. The methods for identifying young stars vary with their mass and age. They include measurements of coronal activity, as seen in X-rays (Schmitt et al. 1995; Mice ...
... common origin, the age, metallicity, and formation environment deduced from the high-mass members can be applied to very low-mass objects. The methods for identifying young stars vary with their mass and age. They include measurements of coronal activity, as seen in X-rays (Schmitt et al. 1995; Mice ...
Stellarium User Guide
... scipting facility is Stellarium’s version of a “Presentation”, a feature that may be used to run an astronomical or other presentation for instruction or entertainment from within the Stellarium program. The original Stratoscript was quite limited in what it could do so a new Stellarium Scripting Sy ...
... scipting facility is Stellarium’s version of a “Presentation”, a feature that may be used to run an astronomical or other presentation for instruction or entertainment from within the Stellarium program. The original Stratoscript was quite limited in what it could do so a new Stellarium Scripting Sy ...
Astronomy Astrophysics - Niels Bohr Institutet
... also recalibrated and redetermined the astrophysical parameters (T eff , Mv , and [Fe/H]) for all stars in our sample. Much effort has been devoted to the fundamental issue of determining reliable isochrone ages for as many stars as possible, and we believe that a rather more realistic assessment of t ...
... also recalibrated and redetermined the astrophysical parameters (T eff , Mv , and [Fe/H]) for all stars in our sample. Much effort has been devoted to the fundamental issue of determining reliable isochrone ages for as many stars as possible, and we believe that a rather more realistic assessment of t ...
A Spitzer mid-infrared spectral survey of mass
... K , M K ) ∼ (1, −10.7) in Fig. 1(b) was not a target but was accidentally observed when Spitzer selected it in the peak-up field.] It turns out that only two of the LMC sources were oxygen-rich, one of which was found to be a massive young stellar object (van Loon et al. 2005b). Here we present the ...
... K , M K ) ∼ (1, −10.7) in Fig. 1(b) was not a target but was accidentally observed when Spitzer selected it in the peak-up field.] It turns out that only two of the LMC sources were oxygen-rich, one of which was found to be a massive young stellar object (van Loon et al. 2005b). Here we present the ...
Altas Farnese
... The possibility of deriving a date and latitude from the Farnese Atlas has not been lost on earlier researchers. E. L. Stevenson claims (purely on the basis of the positions of the solstices) that the constellations date “at least three hundred years before the Christian era”, while C. Gialanella an ...
... The possibility of deriving a date and latitude from the Farnese Atlas has not been lost on earlier researchers. E. L. Stevenson claims (purely on the basis of the positions of the solstices) that the constellations date “at least three hundred years before the Christian era”, while C. Gialanella an ...
Luminosities and mass-loss rates of SMC and LMC AGB stars and
... 86 M-stars. Tables 1 and 2 list basic information: some common names (as listed by SIMBAD), an OGLE-iii identifier when this lightcurve is analysed and shown in Fig. 3, R.A. and declination in decimal degrees, the identifier used in figures and tables below, the adopted pulsation period, the (semi-) ...
... 86 M-stars. Tables 1 and 2 list basic information: some common names (as listed by SIMBAD), an OGLE-iii identifier when this lightcurve is analysed and shown in Fig. 3, R.A. and declination in decimal degrees, the identifier used in figures and tables below, the adopted pulsation period, the (semi-) ...
Spectral Matching for Elemental Abundances of Evolved Stars of Globular Clusters
... The [O/Fe] and [Na/Fe] determined by Johnson & Pilachowski (2010) for the 291 ω Cen stars in common between it and van Loon et al. (2007). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2 Regions of the spectrum used for the spectral indices . . . . . . . . . . . . . . . . . . . . ...
... The [O/Fe] and [Na/Fe] determined by Johnson & Pilachowski (2010) for the 291 ω Cen stars in common between it and van Loon et al. (2007). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2 Regions of the spectrum used for the spectral indices . . . . . . . . . . . . . . . . . . . . ...
Brightest Stars : Discovering the Universe Through the Sky`s Most
... ourselves are staring back and wondering about the stars in their sky, including our own Sun. The brightest stars deserve a book of their own. Stars are the most important units of the universe at large. The very word astronomy means “ordering of the stars.” When we look up in the natural night sky, ...
... ourselves are staring back and wondering about the stars in their sky, including our own Sun. The brightest stars deserve a book of their own. Stars are the most important units of the universe at large. The very word astronomy means “ordering of the stars.” When we look up in the natural night sky, ...
Planetary Nebula
... and fainter, smooth, circular outer envelope. The Lemon slice nebula is one of the most simple nebulae known, with an almost perfectly spherical shape. It appears very similar to a lemon for which it is named. The central star is a very hot and bright Red Giant, and can be seen as a red-orange hue. ...
... and fainter, smooth, circular outer envelope. The Lemon slice nebula is one of the most simple nebulae known, with an almost perfectly spherical shape. It appears very similar to a lemon for which it is named. The central star is a very hot and bright Red Giant, and can be seen as a red-orange hue. ...
Abd al-Rahman al-Sufi and his book of the fixed stars: a journey of
... Fixed Stars. It was written in Arabic by the famous Persian author and astronomer ′Abd alRaḥmān al-Ṣūfī around A.D. 964. Ever since I read this comment by Professor Kunitzsch I wondered what prompted one of the foremost experts in the history of Arabic astronomy to write such a comment about a book, ...
... Fixed Stars. It was written in Arabic by the famous Persian author and astronomer ′Abd alRaḥmān al-Ṣūfī around A.D. 964. Ever since I read this comment by Professor Kunitzsch I wondered what prompted one of the foremost experts in the history of Arabic astronomy to write such a comment about a book, ...
The Stars - Springer
... November 1. Similarly, it will transit on February 1 at approximately 10.00 p.m., and on March 1 at about 8.00 p.m. ...
... November 1. Similarly, it will transit on February 1 at approximately 10.00 p.m., and on March 1 at about 8.00 p.m. ...
Hunting for Substructure in the Milky Way
... the surrounding stars. This means that the angular momentum is predominantly in the direction of the North Galactic Pole. In order to conserve angular momentum, over time this orbit remains approximately circular. Astronomers measure the velocity and distances of stars to analyse the angular momentu ...
... the surrounding stars. This means that the angular momentum is predominantly in the direction of the North Galactic Pole. In order to conserve angular momentum, over time this orbit remains approximately circular. Astronomers measure the velocity and distances of stars to analyse the angular momentu ...
Navigating the Night Sky Checklist
... objects that are visible to the naked eye. A very good source is the monthly Sky Map available on the TAAS Fab 50 website. (www.TAAS.org) 2. Identify the constellation that the naked eye object is in. 3. Using your sky map or planisphere , locate the constellation in the night sky. 4. Identify a bri ...
... objects that are visible to the naked eye. A very good source is the monthly Sky Map available on the TAAS Fab 50 website. (www.TAAS.org) 2. Identify the constellation that the naked eye object is in. 3. Using your sky map or planisphere , locate the constellation in the night sky. 4. Identify a bri ...
preprint, pdf version - LESIA
... satellites, or debris around the central body. For size determinations, occultations are far more suitable than indirect estimations such as those coming from albedo assumptions or from the modelling of optical, infrared (IR), and sub-millimetric observations (Cruikshank et al. 2005; Altenhoff et al. ...
... satellites, or debris around the central body. For size determinations, occultations are far more suitable than indirect estimations such as those coming from albedo assumptions or from the modelling of optical, infrared (IR), and sub-millimetric observations (Cruikshank et al. 2005; Altenhoff et al. ...
Crux
Crux /ˈkrʌks/, located in the deep southern sky, is the smallest yet one of the most distinctive of the 88 modern constellations. Its name is Latin for cross, and it is dominated by a cross-shaped asterism that is commonly known as the Southern Cross. Although visible to the Ancient Greeks, it was seen as part of the constellation Centaurus, and not defined or accurately mapped till the 16th century.Known as Acrux, blue-white Alpha Crucis is the constellation's brightest star and the bottom star of the cross. Nearly as bright are Beta and Gamma, while Delta and Epsilon make up the asterism. Many of the constellation's brighter stars are members of the Scorpius–Centaurus Association, a loose group of hot blue-white stars that appear to share a common origin and motion across the Milky Way. Two star systems have been found to have planets. The constellation also contains four Cepheid variables visible to the naked eye under optimum conditions. Crux also contains the Jewel Box, a bright open cluster, and the Coalsack Nebula, the most prominent dark nebula in the sky.