... A new bright LBV (Luminous Blue Variable) star was detected in M33 galaxy. LBV stars are the most massive stars in the final stages of evolution before exploding in of supernovae. ... The new LBV star (Fig.1) is the seventh in M33. ... It is one of the brightest LBV stars of the M33 galaxy. ... The brightest object is the core of the galaxy, - a compact star cluster comprising a supermassive black hole. The new LBV star N93351 is located down and to the left from the core. ...

Astronomy Picture of the Day . Nearby Cepheid Variable RS Pup . ... Credit Copyright: Hubble Legacy Archive , NASA , ESA - Processing: Stephen Byrne Explanation: It is one of the most important stars in the sky. ... In fact, RS Pup is a Cepheid type variable star , a class of stars whose brightness is used to estimate distances to nearby galaxies as one of the first steps in establishing the cosmic distance scale. ... Star Party? ... Polaris: The North Star . ... Stars of NGC 206 ...

... 2013 September 9 . Nearby Cepheid Variable RS Pup . Image Credit: Hubble Legacy Archive , NASA , ESA - Processing: Stephen Byrne . ... Pulsating RS Puppis , the brightest star in the image center, is some ten times more massive than our Sun and on average 15,000 times more luminous. In fact, RS Pup is a Cepheid type variable star , a class of stars whose brightness is used to estimate distances to nearby galaxies as one of the first steps in establishing the cosmic distance scale. ...

... CEPHEID VARIABLE STARS: A Cepheid variable or Cepheid is a member of a particular class of very luminous, massive variable stars with pulsation periods of 1-70 days. ... The relationship is calibrated using data collected from Cepheids whose distances are determined by other means. ... Browse through the 68 CCD fits images he sent you, using ds9 and locate the Cepheid variable. ... Image credits: ESA - "http://sci.esa.int/science-e-media/img/20/cepheid-variables.jpg" . ...

... R.A. = 00h55m04s.86, Decl. = -37 41'43".7 . ... Variable star in NGC 1511 . ... Variable star near Pegasus 2001bn IAUC 8624 BV anon 2001bh 7622 K star ugc11635 2001dh 7482 M star ic5374 1999db 7227 QSO anon 1999dc 7227 AGN anon 1999cx 7210 AGN anon 1999cu 7210 AGN anon 1999bs 7141 cat var ugc11093 1998di 6982 dwarf nova anon 1993U 5818 QSO anon 1993V 5818 QSO anon 1992W 5517 M star mcg 8-23-96 1992X 5517 M star mcg 6-32-24 1991ap 5327 QSO anon 1989Z 5162 var ngc4013 1985J 4059 CV ugc6274 ? ...

... В теме В разделе По форуму . ... Темы, интересные всем ? ... Научная панорама ? arxiv:0705.4195 VSOP: The Variable Star One-shot Project . предыдущая тема следующая тема . ... 0 Пользователей и 1 Гость просматривают эту тему. ... arxiv:0705.4195 VSOP: The Variable Star One-shot Project I. Описание проекта и первый релиз данных (VSOP: The Variable Star One-shot Project I. Project presentation and first data release) . ... VSOP - The Variable Star One-shot Project ( http://vsop.sc.eso.org/ ). ...

The ESA/ESO Astronomy Exercise Series 2 . The Distance to Messier 100 as Determined by Cepheid Variable Stars . ... The small variations in distance to the individual Cepheid variable stars in the Cloud are negligible compared with the much larger distance to the SMC. ... In this way Cepheid variable stars can be used as one of the 'standard candles' in the Universe that act either as distance indicators themselves or can be used to calibrate (or set the zero point for) other distance indicators. ...

... They worked out that first magnitude was on average 100 times brighter than the 6th magnitude star. ... This formed an equation of apparent magnitude Mv which is: Mv = -2.5 log f + constant were f is the flux of that star f = ( counts/ exposure) The images that we worked on were taken by the Polar Bear Telescope. ... One of these being that it will be combined with standard stars, which will be used to identify the area of stars and to also help identify other stars within the image. ...

... PmWiki . Summary: PmWiki group header. ... Page Variables | ... Defining page text variables . ... Page text variables are string variables created in the wiki text of a page, and can be automatically made available for inclusion in other pages. ... use a definition list - the normal pmwiki markup for a definition list will create a page text variable . ... This creates a new variable that can be accessed by {$:Name} (becomes: "{$:Name}") in the page. use a simple colon delimiter in normal text . ...

OptInt PmWiki : Pm Wiki / Page specific variables . ... Page variables have the form {$ variable } , and can be used in page markup or in certain formatting strings in PmWiki. ... Prefixing the variable name with an asterisk (*) means the variable reflects the value related to the target page or main page. ... Namespaced} - spaced page name, as in "Page Variables" . ... Defines new Page Variable of name $CurrentSkin, which can be used in the page with {$CurrentSkin} (also for Conditional markup ). ...

... GCVS:Description . GCVS Query form . ... The combined table of GCVS Vols I-III and NL 67-80 with improved coordinates ( files ) Version: Sep., 2015 . ... GCVS Vol.V. Extragalactic Variable stars ( files ) . ... NL81 part 2 ( files ) . ... Variable Stars in Plaut's fields ( files ) . ... Samus N.N., Durlevich O.V., Goranskij V.P., Kazarovets E. V., Kireeva N.N., Pastukhova E.N., Zharova A.V., General Catalogue of Variable Stars (Samus+ 2007-2015), VizieR On-line Data Catalog: B/gcvs . ...

... Observations made when HST is pointing near the bright Earth limb can result in the left most ~200 columns of the detector being subjected to background levels up to twice as bright as that on the rest of the chip. ... The overall shape of this high background region is very similar from one affected image to another,